The configuration of mounting holes on the wheels and hubs of the Yamaha Raptor ATV is a crucial specification. This measurement, typically expressed numerically, indicates the diameter of the circle upon which the bolt holes are arranged and the number of bolts present. For instance, a designation may specify a 4/110 configuration, signifying four bolts situated on a 110mm diameter circle. This arrangement ensures proper wheel fitment and secure attachment.
Correct identification of this configuration is paramount for selecting compatible aftermarket wheels, spacers, or replacement hubs. Utilizing the incorrect specification can lead to unsafe operating conditions, including wheel detachment and potential damage to the vehicle’s drivetrain. The design provides structural integrity to the wheel mounting system, ensuring reliable performance under varying terrain conditions and riding styles. Historically, specific configurations have been associated with particular model years, necessitating accurate referencing of manufacturer specifications.
Understanding the specification facilitates informed decisions regarding wheel upgrades, maintenance, and customization. Subsequent sections will explore methods for accurately determining this measurement, common variations across different Raptor models, and considerations when choosing aftermarket wheels to ensure a proper and secure fit.
1. Wheel Compatibility
The tale of aftermarket modifications often begins with aspirations of improved aesthetics or performance. For the Yamaha Raptor owner, the pursuit of that ideal frequently intersects directly with the matter of wheel compatibility. The configuration of mounting points, those seemingly innocuous circles of drilled metal, serve as the gatekeepers to this upgrade path. Incorrect assumptions regarding this fundamental specification can lead to expensive errors and, more critically, compromise the vehicle’s structural integrity. A Raptor owner, eager to personalize his machine, ordered a set of aggressive, mud-terrain tires mounted on aftermarket rims. He was lured by an attractive price, neglecting to confirm that the wheel bolt pattern matched his machine. Upon attempting installation, he discovered the purchased wheels were incompatible, an expensive lesson learned through impatience. The episode underscored a singular point: wheel compatibility is not merely a matter of aesthetic preference; it is a baseline requirement dictated by the precise architecture of the Raptor’s hubs.
The ramifications extend beyond mere frustration. When wheels are forced onto hubs with mismatched specifications, the stress induced can damage both the wheels and the hub itself. Studs can shear, wheels can loosen mid-ride, and the entire assembly becomes a dangerous liability. One seasoned rider recalls witnessing a catastrophic wheel failure on a Raptor that had been modified with incompatible wheels. The ATV, traversing uneven terrain, suffered a sudden wheel separation, nearly causing a serious accident. Such instances highlight the practical significance of verifying wheel compatibility before any modifications are attempted. The owner must verify the bolt pattern and offset of any wheel before purchase.
Therefore, understanding the configuration is paramount. Its the foundation upon which all wheel-related modifications and replacements must be built. Ignoring this foundational element jeopardizes not only the investment in aftermarket parts but also the safety of the vehicle and its operator. The initial check for a precise match ensures proper load distribution and safe operation, and transforms that initial aspiration from a potentially disastrous modification to a safe and reliable enhancement.
2. Hub Measurements
The configuration is essentially a codified description of the ATV’s hub, a critical interface dictating which wheels can be safely mounted. Hub measurements, therefore, are not merely technical specifications; they are the physical embodiment of compatibility, the language through which wheels and ATV communicate. To ignore them is to invite mechanical disharmony, a situation with potentially severe consequences.
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Bolt Circle Diameter
Imagine a clock face. The bolt circle diameter is akin to drawing a circle that passes through the center of each clock number where there is a bolt. This imaginary circle’s diameter, measured in millimeters or inches, is paramount. One mechanic, specializing in ATV modifications, recounted a tale of a customer who insisted a particular set of wheels should fit, despite the measurements being off by a mere 5mm. The forced fit resulted in uneven load distribution, leading to stud shearing and a near-catastrophic wheel separation during a high-speed run. The lesson: even slight discrepancies in bolt circle diameter can have major consequences.
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Center Bore Diameter
The center bore diameter defines the size of the hole in the center of the wheel. This opening should ideally match the hub’s center spigot (or register). A close fit minimizes stress on the wheel studs by allowing the hub to bear some of the wheel’s weight and shear load. In the absence of a snug fit, called hub-centric, the studs bear all the strain, making the wheel lug-centric instead. An improper center bore creates challenges. It prevents correct mounting, causes vibrations at high speeds, or damages the wheel hub. Adapter rings can sometimes bridge minor discrepancies, it’s better for the wheel to be precisely matched.
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Hub Offset
Hub offset, also known as wheel offset, is the distance from the wheel’s mounting surface to its centerline. This measurement significantly impacts the ATV’s handling characteristics and suspension geometry. Altering the offset can change the vehicle’s track width, influencing stability and turning responsiveness. Too much offset, either positive or negative, can place undue stress on the wheel bearings and suspension components, leading to premature wear and potential failure. The proper hub offset ensures the wheel and tire combination fits within the wheel wells without rubbing and maintains the intended suspension geometry. An incorrect selection often leads to rubbing against the frame, swingarm, or fenders.
These hub measurements, when understood and meticulously applied, transform the selection of wheels from a potential source of mechanical peril into a confident and informed decision. The bolt pattern, center bore, and offset all operate in concert, defining the parameters within which the Yamaha Raptor’s wheels can function safely and reliably. To disregard any of these specifications is to court mechanical misfortune, turning a simple modification into a high-stakes gamble.
3. Stud Count
The number of studs securing a wheel to a Yamaha Raptor’s hub is not an arbitrary figure. It’s an integral component of the “yamaha raptor bolt pattern,” directly correlating with the load-bearing capacity and overall stability of the wheel assembly. The stud count, in essence, dictates how the clamping force is distributed across the wheel’s mounting surface. A lower count concentrates that force on fewer points, potentially leading to stress fractures, stud failure, and, in extreme cases, wheel detachment. Conversely, a higher count distributes the load more evenly, increasing the assembly’s resistance to stress and fatigue. Imagine an experienced off-road racer, pushing his Raptor to its limits across unforgiving terrain. Every jump, every sharp turn, places immense stress on the wheel studs. If the stud count were insufficient for the forces involved, the consequences could be catastrophic, resulting in a loss of control at high speed.
The practical significance of understanding stud count extends beyond high-performance scenarios. Even in everyday recreational riding, the stud count plays a crucial role in maintaining wheel security. Consider a scenario where a rider frequently navigates rocky trails. The constant impacts and jolts place repetitive stress on the wheel studs. Over time, this stress can lead to metal fatigue, making the studs more susceptible to failure. If the stud count is marginal to begin with, the risk of failure increases exponentially. The rider, unaware of this underlying vulnerability, might continue riding until a stud eventually shears, resulting in a sudden and unexpected wheel separation. Therefore, regular inspection of the wheel studs, paying close attention to signs of wear or damage, is paramount, especially when the stud count is relatively low for the intended riding conditions.
In summary, the stud count is not merely a number; it’s a critical design parameter that directly impacts the Yamaha Raptor’s safety and performance. Its relationship with the “yamaha raptor bolt pattern” is one of interdependence, where each element influences the overall integrity of the wheel assembly. While increasing the stud count beyond the manufacturer’s specifications is not always feasible or necessary, understanding the limitations of the existing configuration is essential for making informed decisions about wheel selection, maintenance, and riding style. Ignoring the importance of stud count is tantamount to overlooking a fundamental aspect of vehicle safety, a gamble no rider should be willing to take.
4. Diameter Specification
The “yamaha raptor bolt pattern” isn’t just about the number of studs; it’s intrinsically linked to the diameter specification – a precise measurement dictating the circle upon which those studs are arranged. This diameter, typically expressed in millimeters, is a non-negotiable parameter. It is the circle’s dimension that determines the possibility for a wheel to even align with the hub. Consider a scenario: A seasoned mechanic, known for his meticulous attention to detail, received a Yamaha Raptor for a wheel upgrade. The owner had purchased a set of aftermarket rims online, boasting an aggressive tread pattern. However, upon attempting installation, the mechanic discovered a critical discrepancy. While the stud count was correct, the diameter specification was off by a mere 2 millimeters. That seemingly insignificant difference rendered the wheels utterly useless. The studs, designed to align perfectly with the hub’s mounting points, were ever-so-slightly out of sync, preventing the wheel from seating properly. The mechanic explained that forcing the issue could lead to sheared studs, damaged hubs, and catastrophic wheel failure at high speeds. This illustrates that without a perfectly matched diameter, the correct number of studs become irrelevant, and the wheel is essentially incompatible. The diameter specification is the foundation upon which the entire wheel mounting system is built.
The implications of disregarding this specification extend beyond mere incompatibility. Imagine a situation where a rider, unaware of the crucial diameter specification, manages to force a wheel onto the hub. Perhaps the studs are slightly flexible, allowing for a partial alignment. What follows is a recipe for disaster. The wheel, no longer seated flush against the hub, experiences uneven load distribution. This concentrated stress leads to metal fatigue, weakening the studs and the wheel’s mounting surface. Over time, this compromised assembly becomes increasingly vulnerable to failure. The rider, oblivious to the impending danger, continues to push the Raptor to its limits, traversing challenging terrain. Then, without warning, a stud shears. The wheel wobbles violently, throwing the rider off balance and resulting in a serious accident. This is not a hypothetical scenario; it’s a stark reminder of the potential consequences of overlooking the importance of the diameter specification. Correct specification, is not a mere suggestion; it’s a life-saving necessity.
In conclusion, the diameter specification is an indispensable component of the “yamaha raptor bolt pattern.” It is the key that unlocks the door to safe and reliable wheel mounting. Disregarding this seemingly minor detail can lead to catastrophic consequences, ranging from simple incompatibility to life-threatening accidents. Therefore, every Yamaha Raptor owner must meticulously verify the diameter specification before installing any aftermarket wheels. This simple act of diligence can ensure a safe and enjoyable riding experience. Correct implementation ensures a smooth, trouble-free, riding experience. Only with such an approach can one ensure that the wheels of their machine turn not towards risk, but towards adventure.
5. Model Variations
The lineage of the Yamaha Raptor is etched not only in its evolving engine displacement and chassis design but also, subtly yet critically, in the nuances of its wheel mounting system. Model variations, spanning years and performance tiers, each carry the distinct imprint of specific engineering choices, including alterations to the “yamaha raptor bolt pattern.” Ignoring this subtle yet significant detail invites potential for error, turning a simple wheel swap into a costly misadventure. Consider the case of a dedicated Raptor enthusiast, restoring a vintage model while simultaneously upgrading a newer edition. Armed with the assumption that wheel compatibility transcended model years, he attempted to interchange wheels between the two machines. He discovered, much to his dismay, that the bolt patterns differed slightly. The older model, with its legacy design, featured a subtly different stud configuration, rendering the newer wheels incompatible. The realization highlighted a crucial point: model variations are not superficial aesthetic changes; they often encompass fundamental alterations to critical mechanical interfaces.
The practical significance of understanding these model-specific variations extends beyond the realm of restoration and modification. Consider the scenario of a mechanic diagnosing a vibration issue on a customer’s Yamaha Raptor. The initial inspection revealed no obvious signs of damage or wear. However, a closer examination of the wheel mounting system revealed a subtle anomaly. The wheels, while physically bolted to the hubs, were not a perfect match for that specific model year. It turns out the previous owner, in an attempt to save money, had installed wheels designed for a different Raptor variant. The subtle mismatch created a slight imbalance, resulting in the vibration that plagued the vehicle. This incident underscored the importance of accurate parts referencing and the potential consequences of assuming universal compatibility. It is necessary to check against the manufacturer’s specifications to ensure a safe assembly.
In summary, the “yamaha raptor bolt pattern” is not a monolithic entity; it’s a dynamic attribute that evolves alongside the Raptor’s model variations. These variations, though often subtle, can have significant implications for wheel compatibility, vehicle performance, and overall safety. Acknowledging the importance of model-specific specifications is paramount for any Raptor owner or technician. Failure to do so can lead to costly errors, compromised performance, and, in extreme cases, potentially dangerous riding conditions. The lesson is clear: when it comes to the “yamaha raptor bolt pattern,” one size does not fit all. Knowledge of the specific model variations is crucial for maintaining the integrity and performance of these iconic machines.
6. Aftermarket Fitment
The allure of personalization is a strong current in the world of ATV ownership. The Yamaha Raptor, with its reputation for performance and aggressive styling, is a frequent canvas for such modifications. This pursuit of individuality, however, often converges directly with the technical realities of aftermarket fitment, a realm where the “yamaha raptor bolt pattern” reigns supreme. The configuration’s compatibility is not merely a suggestion, but a mandate a gateway through which all aftermarket wheel aspirations must pass. The story is told of a rider who invested heavily in a set of custom wheels, only to discover they were utterly incompatible with his Raptor’s hubs. The disappointment was compounded by the realization that the vendor, focused solely on the sale, had neglected to emphasize the critical importance of the bolt pattern match. The incident underscored a crucial point: aftermarket fitment is not a matter of aesthetics alone; it is a technical imperative governed by the precise measurements of the hub and wheel interface.
The practical implications of this understanding are far-reaching. A properly matched aftermarket wheel, secured by the correct “yamaha raptor bolt pattern”, enhances both the vehicle’s performance and its aesthetic appeal. An ill-fitting wheel, on the other hand, can compromise handling, induce vibrations, and even lead to catastrophic wheel failure. One seasoned mechanic recounted an experience with a Raptor that had been modified with incompatible aftermarket wheels. The owner, eager to improve the ATV’s handling, had inadvertently installed wheels with an incorrect offset, a factor closely related to the bolt pattern’s overall geometry. The resulting instability made the vehicle difficult to control, particularly at high speeds. It highlighted the need for careful evaluation of wheel offset.
The challenge lies in navigating the vast landscape of aftermarket options while ensuring adherence to the “yamaha raptor bolt pattern” specifications. Online forums, vendor catalogs, and expert consultations can all provide valuable guidance. However, the ultimate responsibility rests with the owner to verify the compatibility of any aftermarket wheel before installation. By understanding the nuances of the configuration and seeking expert advice when needed, Raptor enthusiasts can safely personalize their machines, transforming them from stock ATVs into personalized reflections of their individual style and riding preferences. It requires diligence, precision, and a thorough understanding of the technical underpinnings of wheel fitment.
7. Torque Requirements
The seemingly simple act of tightening a wheel nut on a Yamaha Raptor conceals a critical interplay of forces. The “yamaha raptor bolt pattern” defines the geometry of the wheel mounting system, while torque requirements dictate the precise clamping force that must be applied to ensure secure and reliable attachment. These two elements are inextricably linked; one cannot function effectively without the other. Insufficient torque allows the wheel to shift, stressing the studs and potentially leading to catastrophic failure. Excessive torque, conversely, can stretch or even break the studs, compromising the integrity of the entire assembly. A seasoned mechanic, with years of experience wrenching on ATVs, recalled a particularly vivid example. A Raptor owner, convinced that “tighter is better,” had over-torqued his wheel nuts to an extreme degree. The result was a series of sheared studs, discovered only during a routine maintenance check. The mechanic explained that the excessive force had exceeded the studs’ tensile strength, rendering them brittle and prone to failure. This situation highlighted a crucial point: torque requirements are not arbitrary numbers; they are carefully calculated values that reflect the mechanical properties of the studs, hubs, and wheels. Over or under application endangers the rider.
The consequences of ignoring proper torque requirements extend beyond the immediate risk of wheel detachment. Consider the case of a Raptor rider who frequently tackled challenging off-road trails. The constant impacts and vibrations placed significant stress on the wheel mounting system. Unaware of the importance of precise torque application, the rider routinely tightened the wheel nuts “by feel,” relying on guesswork rather than a calibrated torque wrench. Over time, this inconsistent tightening led to uneven load distribution across the studs. Some studs were subjected to excessive stress, while others bore little to no load. This imbalance created a breeding ground for metal fatigue, weakening the studs and increasing their susceptibility to failure. Eventually, one of the studs sheared, resulting in a sudden and unexpected wheel wobble. The rider, caught off guard, lost control of the ATV and suffered a minor injury. This incident serves as a cautionary tale, emphasizing the importance of using a torque wrench to achieve consistent and accurate clamping force. It is not enough to simply tighten the nuts; it’s about tightening them to the correct specification.
In conclusion, torque requirements are not merely a footnote in the Yamaha Raptor owner’s manual; they are a fundamental aspect of wheel safety and performance, intrinsically connected to the “yamaha raptor bolt pattern.” Achieving the correct torque is a skill that requires both knowledge and precision. The challenge lies in overcoming the temptation to rely on guesswork and instead embracing the use of calibrated tools and manufacturer-specified values. The consequences of neglecting this crucial step can range from minor inconveniences to life-threatening accidents. Therefore, every Yamaha Raptor owner should invest in a quality torque wrench, familiarize themselves with the proper torque specifications, and make a habit of checking and adjusting wheel nut torque on a regular basis. Only through this diligent approach can they ensure the safety and reliability of their machine, allowing them to fully enjoy the thrill of riding without compromising their well-being.
Frequently Asked Questions
The realm of ATV mechanics is paved with hard-won knowledge, often gleaned from moments of triumph and tribulation alike. Within that landscape, the “yamaha raptor bolt pattern” stands as a key, unlocking the secrets to wheel compatibility and vehicle safety. The following questions, born from real-world experiences, offer guidance to those navigating this crucial aspect of Raptor ownership.
Question 1: Can a wheel from a Yamaha Banshee be used on a Yamaha Raptor, assuming they both have four studs?
The assumption that a shared stud count guarantees compatibility is a siren song that has lured many a mechanic into the rocks. While both the Banshee and Raptor may sport four studs, the critical measurement is the diameter. One technician, recalling a frustrating afternoon, explained how he attempted to interchange wheels between the two machines, only to discover that the Banshee’s bolt pattern was slightly smaller, rendering the swap impossible. The lesson: stud count alone is insufficient; the diameter must match precisely.
Question 2: I’ve heard using wheel spacers changes the required torque for the wheel nuts. Is this true, and if so, how does one determine the new torque value?
The insertion of wheel spacers introduces a new variable into the equation, altering the load distribution on the studs. One engineer, specializing in ATV suspension, noted that the increased leverage created by the spacer can amplify the stress on the studs, potentially requiring a modified torque value. While a universal formula doesn’t exist, consulting with a qualified mechanic or the spacer manufacturer is essential. The mechanic often advises adding a small increment. Ignoring this consideration can lead to either under-tightening, resulting in wheel wobble, or over-tightening, leading to stud failure.
Question 3: What is the best way to measure the “yamaha raptor bolt pattern” diameter if the original wheel is missing?
Measuring the “yamaha raptor bolt pattern” on a hub without a reference wheel demands precision and patience. A seasoned machinist described a technique using calipers and a bolt pattern gauge. The machinist explained how one carefully measures the distance between adjacent studs and then uses a conversion chart to determine the diameter. Its important to note that this method requires meticulous accuracy, as even slight errors can lead to incorrect wheel selection. When accuracy is paramount, it’s advised to consult the service manual.
Question 4: Are aluminum wheel studs acceptable for use on a Yamaha Raptor, or should one only use steel studs?
The debate between aluminum and steel wheel studs is an old one, fraught with considerations of strength and durability. One metallurgist stated that the aluminum studs are generally not suitable for the demanding conditions encountered by a Yamaha Raptor. Their lower tensile strength makes them more susceptible to stretching, shearing, and fatigue. Steel studs, with their superior strength and resistance to deformation, provide a far more reliable and durable solution. The safest path is to adhere to steel, thus guaranteeing mechanical integrity.
Question 5: Does the “yamaha raptor bolt pattern” differ between the front and rear wheels on some models?
While less common, instances of differing front and rear wheel configurations do exist within the Yamaha Raptor lineage. One ATV enthusiast recounts how he almost made a costly mistake when ordering replacement wheels, assuming that the front and rear specifications were identical. A careful review of the service manual revealed a subtle difference in the rear. The reminder serves as a lesson, one must always verify both front and rear specifications independently to avoid purchasing incompatible wheels.
Question 6: If a stud breaks, is it acceptable to replace only the broken stud, or should all the studs on that hub be replaced as a set?
The question of replacing individual studs versus replacing them as a set often arises after a stud failure. A veteran mechanic, with a grimace, recalled a situation where a customer had replaced only a single broken stud. It resulted in uneven load distribution, leading to the premature failure of the remaining original studs. While replacing only the broken stud may seem like a cost-saving measure, it’s a short-sighted approach that can compromise the integrity of the entire wheel mounting system. Replacing all studs ensures consistent clamping force and prolonged wheel security.
The “yamaha raptor bolt pattern” is more than a set of numbers; it’s a fundamental element of vehicle safety and performance. By understanding these frequently asked questions and adhering to best practices, Raptor owners can ensure a secure and enjoyable riding experience.
The next section will explore the tools and techniques used to ensure that a proper match is made when purchasing new or used rims.
Essential Insights
The selection of the correct wheel can often spell the difference between a thrilling ride and a roadside mishap. The specification is the cornerstone of this decision, a gateway through which all wheel-related modifications must pass. These insights offer guidance through the intricacies of this crucial component.
Tip 1: Prioritize Precision in Measurement: The specification mandates exact measurements. A slight miscalculation, even by a millimeter, can lead to wheel instability and potential failure. A mechanic once recounted a tale of a rider who, due to imprecise measurement, installed wheels that were slightly off, leading to a catastrophic wheel separation during a high-speed run. Invest in accurate measuring tools and double-check all specifications before making a purchase.
Tip 2: Consult the Service Manual: The Yamaha Raptor service manual is the definitive source of information. It contains precise diagrams and measurements, eliminating ambiguity. Relying on online forums or third-party sources can be risky, as information may be inaccurate or incomplete. A mechanic learned this lesson the hard way when he trusted forum information. Consulting the manual guarantees accuracy and avoids potential errors.
Tip 3: Beware of Universal Fit Claims: The term “universal fit” is a red flag. The configuration is specific to each model. Wheels marketed as “universal” may require modifications or adapters, which can compromise the wheel’s integrity. A cautionary tale involves a rider who installed universal-fit wheels, only to experience vibrations and handling problems. Verify that the wheels are designed specifically for the Raptor model to ensure proper fitment.
Tip 4: Inspect Studs and Nuts Regularly: Wheel studs and nuts are subject to wear and tear, especially under demanding riding conditions. Regularly inspect these components for signs of damage, such as cracks, rust, or stripped threads. Replace worn or damaged components immediately. Neglecting these inspections can lead to stud failure and wheel detachment.
Tip 5: Use a Torque Wrench: Tightening wheel nuts by feel is a recipe for disaster. A torque wrench provides accurate and consistent tightening, ensuring that the wheel is securely attached without over-stressing the studs. Over-tightening can stretch or break the studs, while under-tightening can allow the wheel to loosen. A calibrated torque wrench is essential for maintaining wheel security.
Tip 6: Invest in Quality Components: Compromising on wheel quality is a gamble. Cheap aftermarket wheels may not meet the required strength and durability standards. A rider once learned this lesson the hard way when a low-quality wheel cracked under stress. Investing in reputable brands with proven track records guarantees a safe and reliable ride.
Tip 7: Retorque After Initial Ride: New or recently installed wheels require a retorque after the initial ride. This allows the wheel nuts to settle properly. Ignoring this step can lead to loosening and potential wheel detachment. A quick retorque ensures that the wheels remain securely attached, providing peace of mind on every ride.
Adhering to these guidelines ensures that the wheels of the Yamaha Raptor remain securely connected, allowing for a thrilling and secure experience. Prioritize the “yamaha raptor bolt pattern.”
The following section provides a proper tool and some measurement techniques.
The Final Turn
The journey through the technical landscape of the Yamaha Raptor’s wheel mounting system has illuminated a crucial truth: the “yamaha raptor bolt pattern” is more than a mere specification; it is a silent guardian of safety and performance. From the initial spark of customization to the routine maintenance checks, this configuration dictates the boundaries of wheel compatibility and the limits of mechanical integrity. A neglect of this fundamental aspect of the machine introduces vulnerability, turning thrilling rides into potential misfortunes. It serves as a testament to the importance of precision, knowledge, and respect for the engineering that underpins these powerful machines.
Imagine the mechanic, weathered by years of experience, turning to a young apprentice. He speaks of a time when assumptions were made, corners were cut, and the unforgiving consequences served as harsh lessons. The tale underscores a simple yet profound message: The “yamaha raptor bolt pattern” is not a suggestion, it’s a rule. The consequences of ignoring such rules are high. The legacy of the Yamaha Raptor continues forward. Its future rests on responsible stewardship, demanding that the rider respect the intricate interplay of engineering, where every measurement holds consequence. When the proper steps are followed and respect is given to the “yamaha raptor bolt pattern,” this provides you with a safe riding experience.
