YAMAHA YZ250 | Summit Racing

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

4.5 out of 5 stars ( 14 )

$144.99

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.

5.0 out of 5 stars ( 3 )

$134.99

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$213.99

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

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

FMF Racing Powercore Silencers

FMF Racing Powercore silencers provide a factory look and sound with more power. Lightweight and compact, these silencers are manufactured from extruded aluminum with a nickel plated stinger and end cap. Plus, they are fully rebuildable using basic hand tools and offer a stock appearance with aftermarket performance. Get more from your rides with the bolt-on performance of FMF Powercore silencers.

Not Yet Reviewed

$179.99

Wiseco Clutch Pack Kits

Upgrade to Wiseco clutch pack kits for extreme powersports riding conditions. Your worn-out clutch plates and springs need a change. Wiesco clutch pack kits have everything you need for your off-road bike and/or ATV. Each kit comes with new frictions, steels, and clutch springs, all made from premium-grade materials. Their frictions and steels are made to exact OEM tolerances and specifications and produce the same feel and wear resistance as stock plates. Their clutch springs are 8-10 percent stiffer than stock to ensure a positive clutch lockup every time. Do you have a slipping clutch pack? Wiseco clutch pack kits are an easy solution!

5.0 out of 5 stars ( 1 )

$174.99

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$177.99

Summit Bucks

Pro Circuit Racing R-304 Silencers

Closed-course racers prefer the Pro Circuit Racing R-304 silencers for their motorcycles. Developed as a full-race 2-stroke muffler, the compact canister design promotes top performance gains. The wrapped perforated core construction is encased in a 6061 T6 brushed aluminum body, with a polished stainless steel intake tube and end cap. The R-304 silencers are TIG and MIG-welded for durability--and double-walled mounting brackets are included. Hex head screws secure the inlet cap and are easily removed for quick re-packing. Pro Circuit Racing R-304 silencers are available to fit nearly every make of bike, including Yamaha, KTM, Suzuki, Honda®, Kawasaki, Husaberg, and Cobra.

4.5 out of 5 stars ( 2 )

$171.95

D.I.D Racing Chain DirtStar Rims

Stronger than stock rims, D.I.D DirtStar rims offer high-quality value. These aluminum originals are designed to handle your racing and recreational outings with winning performance and affordable pricing. They are compatible with manufacturers' hubs, spokes, and nipples. From the terrain of the earth to the brilliance of the galaxy, you'll ride and shine on DirtStar rims from D.I.D Racing.

5.0 out of 5 stars ( 1 )

$124.50

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$196.99

Renthal Twinring Sprockets

Renthal Twinring sprockets are truly unique hybrid sprockets that will keep you spinning around the track. Twinring off-road sprockets are made of long-lasting and durable material--a high-strength, ultra-light 7075 T-6 aluminum inner core and an electroless nickel coated steel outer ring are permanently bonded together. They are precision CNC-machined to tight tolerances and feature a flat face design that keeps weight to a minimum and makes them as narrow as regular sprockets! Self-cleaning mud grooves are added between every tooth on both sides to prevent dirt buildup, plus flat socket head screws add additional strength to the sprockets during side impacts. Try double durability with less weight on your dirt bike with the addition of Twinring sprockets from Renthal.

Not Yet Reviewed

$128.26

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$134.99

EBC Off-Road Brake Rotors

EBC Off-Road brake rotors are made from heat-treated carbon steel that promotes extra-long rotor life and eliminates galling, which increases pad wear. They are zinc coated to prevent rust and bolt directly to your factory brake hub. These rotors are available with or without scraper holes to reduce heat, according to the original design.

5.0 out of 5 stars ( 2 )

$132.56

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$225.68

EBC CKF Carbon Fiber Lined MX Race Clutch Plate Sets

EBC CKF carbon fiber lined MX race clutch plate sets are built tough to last longer, grip better, feel better, and drive better than stock cork-based units. Plus, the high-heat ability of EBC CKF carbon fiber-lined MX race clutch plate sets handle much higher stresses and temperatures encountered in racing yet feel gentle and smooth in everyday riding. One day, all Motocross bikes and ATVs will be built using a clutch like this, but for now the only way to get the best clutch in the game is to step up to EBC CKF carbon fiber-lined MX race clutch plate sets.

Not Yet Reviewed

$160.33

Acerbis Plastic Kits

Acerbis offers plastic kits for a fast and affordable way to replace your motorcycle body guards and panels in one easy purchase. Each piece is designed with the original factory shape to ensure an authentic look, and they're offered in a variety of original and aftermarket colors to meet your needs. Order the Acerbis plastic kit best suited to provide the optimal fit, form, and function for your dirt bike!

Not Yet Reviewed

$134.26

ProTaper Replacement Foot Peg Cleats

ProTaper replacement foot peg cleats are offered in hard-anodized billet aluminum or coated 304 stainless steel for long-lasting performance. They're also available in a variety of heights—for countless bike applications from the 1980s and up. Don't let worn-down cleats affect your riding. Make sure that you have maximum grip for maximum control of your bike with an economical pair of ProTaper replacement foot peg cleats.

Not Yet Reviewed

$155.99

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$169.99

IMS Super Stock Foot Pegs

IMS Super Stock foot pegs are made from 17-4 stainless steel with a gray powdercoat finish—and measure roughly 2 in. x 3 in. in dimension. The tall rounded teeth are perfect for all riding levels, making a significant difference in the overall control of your bike. These pegs are available for a wide variety of specific motorcycles from BMW, Gas Gas, Honda®, Husqvarna, Kawasaki, KTM, Suzuki, and Yamaha. Order the pair designed to fit your application.

Not Yet Reviewed

$125.00

Cylinder Works 2-Stroke Cylinder Heads

Cylinder Works 2-stroke cylinder heads are offered for use as OE replacements. These are new cast aluminum, bare, standard bore cylinder heads.

Not Yet Reviewed

$199.18

Wiseco Powersports 2-Stroke Forged Series Piston Kits

Wiseco powersports 2-stroke forged series piston kits include your rings, piston pin, and circlips. Wiseco has a decade of experience producing quality pistons for dirt bikes, motorcycles, ATVs, snowmobiles, and outboard marine engines. Their piston kits provide strong, lightweight pistons with optimized designs that improve engine efficiency and maximize your torque and throttle response. Plus, Wiseco powersports piston kits are produced right here in the USA. It's time to blaze your own trail with these Wiseco powersports piston kits! Order the 2-stroke Forged Series piston kit designed to fit your application.

Not Yet Reviewed

$197.99

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$209.99

Hinson Racing Billetproof Clutch Covers

Used by the best--and for good reason--Hinson Racing Billetproof clutch covers are precision-machined from billet T6 aircraft-quality aluminum to aerospace tolerances and hard coated for extreme boot wear resistance. They are stronger than stock and improve heat dissipation. The winningest clutch covers are bulletproof and Billetproof from Hinson Racing.

Not Yet Reviewed

$159.99

Wiseco Powersports Pro-Lite Piston Kits

Wiseco powersports piston kits include your rings, piston pin, and circlips. These 2-stroke kits feature Pro-Lite pistons that are CNC-machined for optimal cam shape and profile, horsepower, and service life. Wiseco has a decade of experience producing quality pistons for dirt bikes, ATVs, snowmobiles, outboard marine engines, and motorcycles. Their piston kits offer strong, lightweight pistons with optimized designs to improve engine efficiency and maximize your torque and throttle response. Plus, Wiseco powersports piston kits are produced right here in the USA. It's time to blaze your own trail with Wiseco powersports piston kits.

4.13 out of 5 stars ( 8 )

$179.99

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$242.99

Wiseco Carburetor Jet Kits

Wiseco offers carburetor jet kits for Keihin and Mikuni carburetors to allow tuning after an exhaust or other type of engine modification. These tuning kits will help improve mid-range throttle response and add additional fuel to wide-open throttle running conditions. The kits have multiple jets per size, a wide jet range, and separate kits for either main or pilot jets to provide you with endless tuning capabilities. Whether you're planning to play with your low-end or high-end by jetting your carburetor, Wiseco has the jet kit for you!

Not Yet Reviewed

$239.99

Rekluse Clutch Friction Disc Kits

Rekluse Clutch friction disc kits are available in several sizes to service numerous dirt bike models. These sets will replace worn friction discs to ensure proper clutch engagement and the efficient transfer of power from the engine to the wheels. Select the Rekluse friction disc kit designed for your bike.

Not Yet Reviewed

$139.00

Pro-X Racing Parts Piston Kits

Pro-X Racing Parts piston kits furnish the pistons, rings, wrist pins, and circlip retainers to perform a relatively easy rebuild. Available for 2-stroke and 4-stroke models, these industry-leading pistons are CNC-machined for precision in either a cast or forged aluminum alloy--perfect for low friction and low expansion. Sleeved cylinder versions are made in both standard and oversized parts, while plated cylinder kits can be ordered in standard and A, B, C, and D oversizes. Pro-X Racing Parts piston kits are produced in a variety of OEM bore measurements for powersports equipment from makers like Yamaha, Kawasaki, KTM, Honda®, Husaberg, and Husqvarna. Ensure the best ride every time--replace or rebuild your pistons before they fail and cause more expensive problems.

Not Yet Reviewed

$119.99

Namura Technologies Top-End Repair Kits

Top-end rebuilds can help to improve the performance of your ride, and Namura Technologies top-end repair kits will keep your ATV, UTV, or off-road motorcycle running in peak condition! They include everything you need: pistons, top-end gasket kit, and wrist pin bearings (where applicable) in one convenient, time-saving package. Namura kits are available for a wide variety of makes and models, with specific bore and compression ratio parts to service your specific vehicle. Choose to do your rebuild with repair kits from Namura Technologies—the people who make pistons with attitude!

5.0 out of 5 stars ( 2 )

$101.99

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$108.99

Summit Bucks

Pro Circuit Racing Linkage Arms

Pro Circuit Racing linkage arms have all of the right angles for better performance. Designed to stiffen up the initial linkage curve and improve the geometry of the chassis, they will make your bike much more stable, eliminate the initial loose feel, and greatly improve turning and cornering capabilities. These strong arms are CNC-machined from billet aluminum and alone will provide a major improvement over your stock setup. Pro Circuit includes all of the required bearings and seals with their linkage arms.

Not Yet Reviewed

$224.95

FMF Racing Powercore 2 Silencers

FMF Racing Powercore 2 silencers give your 2-stroke a performance edge. With their lightweight extruded aluminum oval canister mated to a perforated core and hand-built from start to finish, these silencers are laps beyond the competition. Their stainless steel performance flow end cap and front stinger offer not only unbeatable durability, but unmatched looks. Go for more with the bolt-on performance of FMF Powercore 2 silencers.

Not Yet Reviewed

$179.99

YAMAHA YZ250 Parts and Accessories