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YAMAHA YZ250 Parts and Accessories
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Champion Racing Spark Plugs
Champion racing spark plugs position the spark approximately 1/16 in. into the combustion chamber and feature colder heat ranges that use a shortened ground electrode. This is designed to aid in exposing the spark to the air/fuel mixture to help prevent pre-ignition from an overheated ground electrode. The spark plugs are constructed with a nickel shell for faster heat dissipation and a copper core (or double core) for further heat removal. Choose non-resistor Champion racing spark plugs for your high-horsepower engine.
( 88 )
$9.99
NGK Iridium IX Spark Plugs
NGK Iridium IX spark plugs feature an ultra-fine center electrode that's designed just thick enough to ensure the maximum durability and life of the spark plugs—and just thin enough to create an accurate and consistent spark. They represent the ultimate evolution of spark plug technology and performance. Iridium is the hardest metal used in spark plugs today—six times harder than platinum. This allowed NGK engineers to reduce the voltage requirement for a spark. Iridium IX plugs are available in more than a hundred configurations for universal and vehicle-specific applications.
( 253 )
$11.99
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$12.99
Antigravity Batteries Re-Start Batteries
Antigravity Batteries Re-Start batteries have built-in jump-start and full management systems. They intelligently monitor their own voltage, and just before going completely dead, they promptly initiate sleep mode with just enough energy to get your vehicle started again. Simply press the restart button located on the battery, start your vehicle and drive away. These are extremely lightweight and high-power lithium-ion replacements for your heavy lead/acid batteries. They're available for most modern motorcycles and ATV/UTVs. No more dead battery emergencies or being stranded with Antigravity Batteries Re-Start batteries! Features and specs: * Up to 2 times the cranking power and lifecycle of heavy lead/acid batteries * Up to 70 percent lighter than heavy lead/acid batteries * Management system offers low-voltage cutoff, over-charge/over-discharge protection, lithium cell balancing, and thermal protection * 4 terminal posts for ease of use with right or left side connections and any orientation (no liquids to spill) * Capable of holding a charge for up to one year when no parasitic drains (alarms, GPS, etc.) are present * Shock and vibration resistant for durability * No acids or heavy metals for lower environmental impact
( 13 )
$144.99
NGK Racing Spark Plugs
What's firing your engine? NGK racing spark plugs are built to withstand the severe mechanical and thermal shock associated with high-revving, high-compression engines. NGK racing plugs feature special electrode materials—precious metals like platinum, iridium, and ruthenium—for greater durability and low voltage requirements. Fine-wire center and ground electrodes provide better sparking and enhanced ignitability. And, the unique arrangement of insulator noses improves throttle response! Whether you're a weekend warrior or an expert racer, rocket your way to victory with racing spark plugs from NGK—the people who spark winners!
( 228 )
$4.99
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$9.99
NGK Standard Series Spark Plugs
NGK Standard Series spark plugs are designed for stock replacement applications. These plugs have a hotter spark, which means better combustion—and that improves performance, while producing less harmful emissions. They're available in a variety of options for both universal and specific vehicle applications. Get the spark plugs used by winning racers: NGK Standard Series.
( 231 )
$3.99
Red Line 80W Motorcycle Gear Oil with ShockProof
Red Line 80W motorcycle gear oil with ShockProof is designed for 2 and 4-stroke motocross transmissions, as well as shifter kart gearboxes. Used where an 80W oil is called for, ShockProof's microscopic solid medium provides cushioning between gear teeth, while maintaining lower drag. This reduces the thinning effect from high temperatures. Red Line 80W motorcycle gear oil also provides the balanced slipperiness necessary for consistent shifting and proper wet-clutch operation.
( 6 )
$19.99
Pro-X Racing Parts X-Ring Roller Chains
Pro-X Racing Parts X-ring roller chains are exclusively manufactured for Pro-X by the reputable and leading OEM factory in Japan, using the highest grade Japanese steel. Specifically for the off-road, Enduro, ATV, and big 4-stroke Motocross bikes, Pro-X offers a lightweight, narrow type X-ring chain using a QX-type seal, offering 40 percent less friction and at least 150 percent increased durability over a standard MX Chain. All Pro-X chains are pre-stressed and pre-stretched to reduce initial chain stretch and provide immediate performance. They include a clip-type chain link as standard. Select the size chain needed for your off-road machine. Features: * Exclusive pin treatment provides an extremely hard outside coating, leaving a softer inside to increase strength while reducing overall chain wear * Pins are heavy press fitted and feature quad-staked riveting for ultra-strong connection * Solid bush inside the shot-peened, solid roller and plates are heat treated to offer incredible tensile strength, along with low friction and high-wear resistance * Inner plates are designed in a specific shape, allowing less material to be used and with the unique lightning holes result in a 3 percent overall lighter chain without compromising tensile strength
Not Yet Reviewed
$113.99
Excel Takasago Rims
Excel Takasago rims will not let you down! Where most rims fail, these are designed and engineered to perform--and survive--the harsh environment of competition. They're built from their exclusive 7000 Series aluminum alloy with higher yield strength, plus their know-how in extrusion design, complex multi-step forming, advanced robotics welding, and hard anodizing. Get laced up for winning performance with Excel Takasago rims.
( 3 )
$134.99
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$213.99
E3 Spark Plugs
Energy, efficiency, and ecology--that's the E3 equation! The unique patented electrode configuration of the E3 spark plugs increases the amount of combustion pressure created during each power stroke of an engine. This, of course, results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines.
( 712 )
$8.49
Wiseco Piston Retaining Clips
Wiseco piston retaining clips are important hardware components for a wide variety of powersports equipment, including ATVs, UTVs, street and off-road bikes, snowmobiles, and personal watercraft. The steel circular wrist pins are designed to permit rotation within the piston, but prevent lateral movement. They're available in a variety of diameters and thicknesses to fit your specific application.
( 5 )
$2.99
EBC R Series Sintered Brake Pads
These EBC R series sintered brake pads feature copper material made in EBC facility. These R series of heavy duty ATV and Moto-x pads have become an aftermarket standard offering high durability, high resistance to contamination by mud, water, sand and grit. This feature offering reduced disc damage and long pad life.
( 5 )
$32.36
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$41.74
Renthal Ultralight Rear Sprockets
Renthal Ultralight rear sprockets will withstand the rigors of supercross, motocross, and enduro racing. Manufactured to extremely tight tolerances, they are 66 percent lighter than steel, and yet incredibly durable. Renthal uses computer-aided design, high-strength specially enhanced 7075 T-6 aluminum alloy, and CNC-machining to produce sprockets that are high-strength, hard-wearing, and offer the maximum reduction of unsprung weight at the rear wheel for maximum power transfer. They've also added self-cleaning mud grooves between every tooth on both sides to prevent dirt buildup. Shouldn't you choose the sprockets chosen by more factory race teams? Join a winning team and install Renthal Ultralight rear sprockets.
( 2 )
$82.99
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$100.99
FMF Racing Gnarly Pipes
FMF Racing Gnarly pipes add 4-stroke, tractor-like torque to your 2-stroke--and they can withstand harsh elements. They are built from super-strong, 18-gauge steel and nickel plated. The expansion chambers focus on increasing the lower rpm horsepower and torque to get you out of the toughest terrain. If you're looking for more bottom end, these remarkable and outstanding Gnarly pipes from FMF Racing won't let you down!
( 7 )
$269.99
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$278.99
ProTaper Self-Engaged Launch Assist Devices
ProTaper's revolutionary Self-Engaged Launch Assist (SELA) solves a problem faced by all motocross racers, no matter their skill level: setting a start device alone is awkward at best and impossible at worst. With its patent-pending self-engaged twist dial, SELA can be easily set without any assistance, giving riders the freedom to practice starts and line up for races by themselves. During a start, SELA makes it possible to temporarily compress the motorcycle's front suspension, reducing its tendency to wheelie under acceleration. This optimizes rear wheel traction, allowing the rider to be more aggressive with the throttle and launch down the start straight with greater control. Its unique, modular design allows SELA to be installed on most full-size, late-model motocross bikes. A dual-hinged receiver ring makes for quick and convenient installation without removing the front wheel or fork. Additional product details: * Dual-hinged receiver ring with variable clamping diameter for quick installation and precise fit * Forged aluminum alloy construction optimizes weight savings, strength, and durability * Hard-anodized moving parts maximize resistance to corrosion and wear * Durable laser-etched graphics, including engagement confirmation markings * Includes all parts and hardware necessary for a wide range of applications
Not Yet Reviewed
$199.99
Vertex Water Pump Rebuild Kits
Vertex offers water pump rebuild kits for a wide range of powersports equipment—including Polaris and Arctic Cat snowmobiles; plus off-road bikes and ATVs from Honda©, KTM, and Yamaha. Depending on the model, kits include a combination of gaskets, seals, and usually bearings to complete a service rebuild on your water pump.
Not Yet Reviewed
$36.20
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$49.68
Russell Speed Bleeders
Russell speed bleeders let you bleed the brake lines on just about any vehicle all by yourself. Just replace the old bleeder screws with speed bleeders. They have an internal check valve that will pump excess air and fluid out for you. A special coating on the speed bleeders' threads keep them from admitting air into the system, and keep expelled air and fluid out. When you're done, just tighten the screws and go on to the next brake cylinder.
( 264 )
$15.99
BikeMaster Magneto Flywheel Pullers
BikeMaster magneto flywheel pullers are made of high-quality steel construction that has an anodized black finish for long-lasting durability and performance. BikeMaster has the high-quality pullers you could need to finish any type of flywheel project while working on your bike.
( 4 )
$7.99
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$9.99
Hot Rods Complete Bottom End Rebuild Kits
When it's time to do a rebuild, Hot Rods complete bottom end rebuild kits are less expensive and longer lasting than OEM. These kits have all that you need to get back on track and are easy to put together. Each kit contains a crankshaft, main bearing/seals, and a complete gasket set. Water pump seals are not included. Great performance parts from Hot Rods will have you going, going, strong!
( 2 )
$469.16
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$506.56
EBC MXS Series Moto-X Brake Pads
EBC MXS Series Moto-X brake pads are motocross difference-makers! The ultra high-friction, sintered copper alloy pads come complete with the external hex drive slider pins—and are ideal for sport and utility riding alike. Order the set designed for fitment on your application. Additional details: * Brake pad construction integrally molded without shims * For use with stock calipers and rotors, slotted rotors, and cross-drilled rotors
Not Yet Reviewed
$41.25
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$48.63
EBC Oversize SuperMoto Disc Brake Conversion Kits
EBC oversize SuperMoto disc conversions kits have 320mm oversize Supermoto discs and are constructed with a forged alloy center hub for weight reduction. These conversion kits are billet steel with a 4mm thick brake rotor for maximum stopping power. The rotor rings have extra weight-reducing scraper holes that are riveted together with a 9-button sturdy rivet system. These rotors come complete with anodized alloy relocation brackets for various models and are supplied with the complete rotor unit. These rotor conversions will require longer brake hose to complete the installation.
( 3 )
$384.09
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$397.49
UNI Filter Multi-Stage Competition Air Filters
Leave it to UNI Filter multi-stage competition air filters to launch the performance air filter into the next century. The lifeblood of your air intake system is the air filter, and a high-quality filter is guaranteed to breathe new life into your system. The unique two-stage design of these air filters leaves the outer layer dry for longer periods of power-producing airflow--or oil them for those times when the conditions are soggy. UNI Filter multi-stage competition air filters trap more dirt, have a snug fit, and afford longer rides with more power.
( 12 )
$30.99
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$32.79
Summit Bucks
Pro Circuit Racing Ti-2 Shorty Silencers
Pro Racing Circuit offers Ti-2 Shorty Silencers for a wide range of motorcycles—including Honda®, Kawasaki, Yamaha, KTM, Husqvarna, GasGas, and Suzuki. Since the switch to 4-stroke bikes several years back, many aftermarket exhaust companies have put aside their desire to improve 2-stroke performance parts. Not Pro Circuit. Four-strokes might have become the primary ride for most riders, but Pro Circuit never stops improving their line of pipes and silencers for 2-stroke fanatics. The Ti-2 Shorty Carbon Kevlar/Titanium Silencer is the latest piece of racing technology offered—and is guaranteed to be a favorite for most 2-stroke riders. Order the model recommended for your application.
Not Yet Reviewed
$362.95
All Balls Racing Shock Bearing Repair Kits
All Balls Racing shock bearing repair kits convert failure-prone rubber bushings into high performance Delrin bushings with hardened steel pins. These bearings also feature the latest in double-lip rubber seals, which provide the unparalleled exclusion of water and dirt. Every bearing is tested and graded to meet or beat OEM quality standards. Separate kits are available for your upper and lower shocks, so replace only what you need.
Not Yet Reviewed
$27.12
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$37.38
FMF Racing Fatty Pipes
Broaden your power band with FMF Racing Fatty pipes. These popular Gold Series pipes broaden and smooth out the power curve, while boosting gains throughout the entire power band for more low-end, mid, and overrev. Fatty pipes are built from carbon steel with a nickel plated finish for maximum durability, and their Tru-Flo stamping process ensures a perfect fit and optimum performance. With more tractable power and improved throttle control, FMF Racing Fatty pipes deliver the race-proven performance you're looking for, no matter what type of riding you do.
( 4 )
$269.99
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$278.99
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