Products | Yamaha | YZ450F | Yamaha YZ450F 2012
Ref: 0331245E & F
Fits The Following Bikes:Yamaha YZ450F 2010-2013 Exhaust Description: The Ti-5 Exhaust System is constructed of titanium throughout the muffler can, header and mid pipe areas. Designed for optimum performance, riders will enjoy increased horsepower while still meeting the 2-Meter max sound requirements. Unlike other Pro Circuit exhaust systems, the Ti-5 offers consumers the choice between a titanium or carbon fiber end-cap. Additionally, the asymmetrical muffler configuration maximizes packing volume to ensure sustained performance. Features Included:Asymmetric muffler designMeets 2-Meter max sound testIncreased packing volumeAluminum muffler bracketTIG weldedComes with RC-4 Resonance ChamberMachined titanium mid pipe to header jointOptional titanium or carbon fiber end-capAdditional silencer packing kit included
Pro Circuit has built its reputation around the exhaust system. This legendary product is truly the core of our business, and were adding something new to the lineup. Pro Circuit is proud to announce the release of the new T-5 Carbon Euro System.The T-5 Carbon Euro System is constructed of stainless steel throughout the muffler can, header, and mid-pipe areas, and is topped off with a carbon fiber end cap to give it the same aesthetics as the Ti-5, but at a T-5-friendly price point. The asymmetrical muffler configuration maximizes packing volume to ensure sustained performance. Specifically for international customers, the T-5 Euro System meets the FIM 2 meter max sound requirements.Pro Circuit T-5 Carbon Euro System · Asymmetric muffler design· Increased packing volume· Aluminum muffler bracket· TIG welded· RC-4 resonance chamber· Machined stainless steel mid-pipe to header joint· Carbon fiber end cap· Additional silencer packing kit
Fits The Following Bikes:Yamaha YZ450F 2010-2013Exhaust Description:Just like our Ti-5 titanium exhaust system, the T-5 produces the same results except that the T-5 is constructed of stainless steel and aluminum. The T-5 stainless "Race System" was designed for durability, demanded by off-road racers and recreational riders. The race system also comes with our RC-4 resonance chamber to help reduce noise output.Features Included:Lightweight and durableRC-4 resonance chamber helps to reduce noise outputNew machined mid-pipe to head pipe joint for a better, leak-free fitAluminum muffler bracketTIG weldedAsymmetric muffler design for increased packing volumeRemovable USFS approved spark arrestor and optional insert for closed course racing
Fits The Following Bikes:Yamaha YZ450F 2010-2013 Slip-On Description:The T-5 stainless "Slip-On Silencer" was designed for a rider looking for an inexpensive, easy-to-install, lightweight performance silencer that can bolt right onto their stock head pipe. Features Include:Lightweight and durableAluminum muffler bracketTIG weldedAsymmetric muffler design for increased packing volumeRemovable USFS approved spark arrestor and optional insert for closed course racingAdditional silencer packing kit
Fits The Following Bikes: 4-Stroke Bikes Exhaust Plug Description: An essential item when washing your dirt bike, the Pro Circuit Exhaust Plug helps to prevent water and mud from leaking into your exhaust system. Water getting inside your exhaust system and onto your packing could cause damage to the entire system. Not only great for use when washing your bike, this plug is also good to use when storing or transporting your motorcycle.Features Include: Durable silicone plug Tapered design Center handle makes it easy to insert and remove plug Prevents water and mud from going into your exhaust while washing For 4-stroke exhaust
Ref: 4-STR CYL HEAD MOD
- Modified Head by Pro Circuit *Note: * Indicates parts to be supplied by customer (this cost is for your bare cylinder head, no valves, valve springs etc). If you would like CGH to strip/rebuild your cylinder head this will incurr extra charges.Pro Circuit four-stroke cylinder head tuning to your own cylinder head. Send your cylinder head to CGH and we will forward this to Pro Circuit USA to be modified in house, once this has been completed it will be then returned to CGH and then returned to you.The above cost includes the cost of sending your standard bare head to Pro Circuit USA, modifications by Pro Circuit USA and return to CGH plus all of your import duties, vat, delivery etc (no hidden costs, unless we have to strip your cylinder head valves, valve springs etc - check with us for this cost if required). There is a fine line to building an engine. If the limits are pushed too far (like many engine builders do) there are reliability issues. Pro Circuit's goal is to give you the very best in high-performance service without any loss of reliability. Pro Circuit engine modifications will give you increased power from bottom to top!Pro Circuit has specialized in motor modifications since the early two-stroke Husky days. Our expertise in building the world's most advanced engines is a direct result of working with the fastest and most talented racers. Riders like James Stewart, Ricky Carmichael, Ryan Villopoto, Chad Reed and more have been a great help in our engine development process. In addition, every motor we build is thoroughly tested using our flow bench and race shop dynos. From two-strokes to four-strokes, races bikes to ATV's, almost any machine can benefit from Pro Circuit motor modifications.This modification does not include copper valve seats or installation, this option can be added to your head while at Pro Circuit USA - please contact us for prices.You can also buy a brand new cylinder head from Pro Circuit with these modifications if you have a damaged cylinder head - please contact us for prices.
Fits The Following Bikes:Yamaha YZ450F 2010-2012 Camshaft Description:The Pro Circuit Camshaft helps to increase the performance of your dirt bike. The Pro Circuit Camshaft is designed and manufactured in the USA, and is meticulously designed and tested with the assistance of our championship-winning race team before being filtered down to our customers. Note: All Pro Circuit Camshafts must be used with Pro Circuit Valve Springs. In addition, camshaft timing should be set by a certified mechanic to ensure proper function. Improper installation could result in engine failure.
Fits The Following Bikes:Yamaha YZ450F 2006-2009 Description:Pro Circuit Valve Springs allow your engine to run at a higher rpm without loss of valve control. When changing valve springs, always examine the keepers and spring retainers closely for wear or damage. If there is damage, you may want to consider a Valve Spring Kit.
Fits The Following Bikes:Yamaha YZ450F 2010-2013 Titanium Intake Valves Description:Pro Circuit's Titanium Intake Valves are designed based on our race technology and manufactured to our stringent specifications by Del West, the industry leader in F-1 racing valve technology. Each intake valve is CNC-machined and precision ground using only titanium. Every valve is sprayed with a thermal-nitride coating to increase performance, durability and reduce normal wear. Features Include:CNC-machined and precision groundA thermal-nitride coating to increase performance and product life.
Fits The Following Bikes:Yamaha YZ450F 2010-2013 Titanium Exhaust Valves Description:Pro Circuit's Titanium Exhaust Valves are designed based on our race technology and manufactured to our stringent specifications by Del West, the industry leader in F-1 racing valve technology. Each exhaust valve is CNC-machined and precision ground using only titanium. Every valve is sprayed with a thermal-nitride coating to increase performance, durability and reduce normal wear. Features Include:CNC-machined and precision groundA thermal-nitride coating to increase performance and product life
Fits The Following Bikes:Yamaha YZ450F 2010-2013High-Compression Piston Description:Pro Circuit High-Compression Pistons work equally well in stock or modified engines giving you more power at every rpm. High-Compression Pistons will add low-end torque and top-end power. Features Include:PistonRingsUncoated wrist pinCirclips
Fits The Following Bikes:Yamaha YZ125 2015-2020Yamaha YZ250 2015-2020Yamaha YZ250X 2017-2019Yamaha YZ250F 2010-2020Yamaha YZ250FX 2015-2019Yamaha YZ450F 2010-2020Yamaha YZ450FX 2016-2019Launch Control Description:The Pro Circuit Launch Control device will help compress the forks down a few inches from the normal seated position on the bike. When locked down at the start of a race, more load will be placed on the front end instead of the rear, lessening the chance of a wheelie out of the gate.Launch Control Features:Springless design that delivers positive engagement and consistant releaseStart trigger eases the setting and disengaging processCNC-machined out of aircraft-grade aluminumLight-weight
The Pro Circuit standard radiator hose kits are lighter and withstand expanding when hot. Kit replaces the stock hoses.
Fits The Following Bikes:Yamaha YZ250F 2009Yamaha YZ250F 2014-2018Yamaha YZ450F 2010-2020Linkage Arm Description: Pro Circuit's Linkage Arms are CNC-machined from billet aluminum and are designed to stiffen up the initial linkage curve and improve the geometry of the chassis, making the bike much more stable. This will also help eliminate the initial loose and wallowy feel. Turning and cornering capabilities are greatly improved as well. Although having your suspension revalved by Pro Circuit would make a considerable improvement, the Linkage Arms alone provide a major improvement over the stock set-up. Each link arm includes all of the required bearings and seals.Stock length for the YZ250F/450F is 142.0 mm - Pro Circuit Length is 143.5 mm
Fits The Following Bikes:Yamaha YZ450F 2010-2020Clutch Springs Description:Pro Circuit Clutch Springs will increase the clutch life, prevent clutch slipping, and has improved engagement over a stock setup for any rider. These high performance springs will help to keep engine temperature down. Riders will notice consistent spring performance throughout time, which is crucial in controlling how efficiently the clutch turns power into acceleration.Features Include:12-15% stiffer than stockMore positive clutch engagementPrevents clutch slippingConsistent spring performance
Fits The Following Bikes:Yamaha YZ450F 2010-2020Cover Description:Pro Circuit Clutch Covers are CNC machined from T-6 billet aircraft-grade aluminum to improve durability and heat dissipation, which improves performance. These covers are designed to be stronger and lighter than the stock clutch cover.
Fits The Following Bikes: Yamaha YZ250F 2014-2020Yamaha YZ450F 2010-2020 Engine Plug Kit Description:Pro Circuit's Engine Plug Kit is a must-have item to attain that works look. Each piece is CNC machined from aircraft-grade aluminum, anodized red and hand polished. Features Include: 3-piece kit CNC machined from aircraft-grade aluminum Anodized red
Fits The Following Bikes:65's and upBanjo Bolts Description:Pro Circuit Banjo Bolts can be fastened onto the front and rear brake master cylinders, as well as the front and rear brake calipers to achieve that "works look". Banjo Bolts are machined from aircraft-grade aluminum and come with a red anodized finish. Sold in pairs.Features Include:Pre-drilled holes for safety wireMachined from aircraft-grade aluminumRed anodized finishDesigned to fit any motorcycle application (65 & up)
Fits The Following Bikes:Yamaha YZ125 2009-2014Yamaha YZ250 2009-2014Yamaha YZ250F 2009-2014Yamaha YZ450F 2009-2014 Brake Hose Clamp Description:The Pro Circuit Brake Hose Clamp firmly holds the brake line in place, and even with it's compact design, this clamp is more durable than stock and will not break like the OEM units do.
Fits The Following Bikes:Yamaha YZ85-450F(Call for application years) Rear Brake Clevis Description:Pro Circuit's Rear Brake Clevis is made from aluminum and comes with an anodized red finish to achieve that "works look". The purpose of the rear brake clevis is to eliminate the free play on the stock brake pedal set-up.
Fits The Following Bikes:Yamaha YZ450F 2010-2020Axle Blocks Description:The Pro Circuit Axle Blocks are CNC machined from billet aluminum for lightweight and durability. The axle blocks have adjustment lines on the side which make for precise and easy wheel alignment.Features Include:CNC machined from billet aluminumBrown anodizingAdjustment lines for easy wheel alignment
Fits The Following Bikes:Kawasaki KX250F 2004-2019Kawasaki KX450F 2004-2020Suzuki RM-Z250 2004-2006Yamaha WR/YZ250F 2001-2013Yamaha WR/YZ400F 1998-2000Yamaha YZ450F 2003-2013Kawasaki Throttle Tube Description:Pro Circuit throttle tubes are CNC machined out of aluminum, and are Teflon coated on the inside to reduce friction which gives you a smoother twist of the throttle.
Pro Circuit's exclusive Flow-Thru Foot Pegs are designed to reduce mud from packing in the pegs (giving you better foot traction and control). In addition, the extra-wide platform and deep foot peg teeth provide added stability for the rider.Features Include:Extra-wide platform and deep teeth for increased rider stabilityTitanium construction
Fits The Following Bikes:Kawasaki KX250F 2013-2016Yamaha YZ125 2008-2016Yamaha YZ250 2008-2016Yamaha YZ250F 2007-2016Yamaha YZ450F 2008-2016Forged Brake Lever Description:Pro Circuit Brake Levers are made by Sunline and forged from 6061-T6 aluminum for strength and durability. This lever is designed to fit the stock perch and exceeds OEM specifications.
Fits The Following Bikes:Kawasaki KX250 2005-2008Kawasaki KX250F 2005-2013Kawasaki KX450F 2006-2013Yamaha YZ125 2000-2011Yamaha YZ250 2000-2011Yamaha YZ250F 2001-2008Yamaha YZ400F 1998-1999Yamaha YZ426F 2000-2002Yamaha YZ450F 2003-2008Yamaha WR250F 2000-2002Forged Clutch Lever Description:Pro Circuit Forged Clutch Levers are made by Sunline and forged from 6061-T6 aluminum for strength and durability. This lever is designed to fit the stock perch and exceeds OEM specifications.
* One piece cast 6AL-4V Titanium construction yields superior strength and lighter weight than welded Ti pegs * 55mm wide platform with triple cleat design for improved impact dispersion * Open cleat feature to minimize mud buildup * Raised outer teeth for additional grip * Up to a half pound weight savings over stock * Made in the USA Click here to watch the video...
Fits The Following Bikes: Yamaha YZ450F 2010-2020Yamaha YZ450FX 2019-2020* Includes Billetproof Clutch Cover, Basket, Inner Hub, Pressure Plate, Fiber Plates, Steel Plates and Hi-Temp Clutch Springs* Race proven worldwide by Team Red Bull Honda, Team Monster Kawasaki, Team Makita Rockstar Suzuki and Team JGR* Improves clutch performance and life* Improves heat dissipation* Precision machined from billet T-6 aircraft quality aluminum to aerospace tolerances, and Akadized for five times the wear resistance to stock (with proper maintenance)* Allows clutch assembly to spin more true creating less heat when clutch is disengaged and providing a more positive smooth clutch engagement.* Helps eliminate clutch chatter.* Exceptional production tolerances and flatness on steel plates* Springs manufactured from high temperature steel, highly resistant to losing strength due to the high heat of 4-strokes* Organic, non-abrasive clutch plate fiber material helps avoid engine damage as plate material breaks down and circulates through the engine via oil
Ref: ARC Levers
ARC RC8 & DC8 Clutch Perch(s) - Aluminum or CompositeARC Clutch Lever(s) - Aluminum or CompositeARC Brake Lever(s) - Aluminum or CompositeARC Levers - Life-Time WarrantyClick here for more ...
Ref: WC Elite Perch
Your personalized clutch control system starts here!Choose your body style & colour, the thumbwheel colour and finally, the lever ratio and colour. Easy as 1-2-3!Hot StartsBrake LeversRotaing Bar ClampsReplacement HardwareClick here for more ...
Fitment:Yamaha 125/250/450F 1999-2019Yamaha YZ250F 1999-2020* Super strong. Crafted by British engineers using hand-fabricated, aerospace-grade titanium and the latest manufacturing techniques to produce the strongest welds, eliminating stress and corrosion* Ultra light-weight, only 410g per set* Maximum grip 24 tooth design, 3 Rows of teeth on a wider platform (57mm) offering a greater surface area* Anti-clog design to resist mud clogging and buildup* Hand-fabricated in the UK by Raptor Titanium* FREE set of compatible stainless steel springs included* Performance Perfected by Raptor Titanium
Ref: 27-145 to 27-155
· 6061 T6 aircraft grade aluminum construction· CNC machined to exacting specifications· Raised CNC engraved logo· Applications for Honda, Husq., Kawi, KTM, Suzuki and Yamaha· Anodized in Blue, Red , Black· Made in the USAClick here to watch the video...Click here to watch the video...
Ref: 24-360 - 24-370
Precision CNC machined from durable, weight saving 6061-T6 aluminum and include pre-drilled safety wire holes for added confidence over the stock nut. Brilliant anodized finish and engraved WC logo\\\'s create that \\\'Factory\\\' look. Pre-drilled for safety wire CNC machined 6061-T6 aluminum CNC engraved WC logos Anodized in Blue, Red or BlackClick here to watch the video...
Ref: 17-280 thr 17-325
* Integrated caliper receiver post to ensure precise measurement for true chain alignment* Ultra-slim design precision CNCd from 6061 T-6 billet aluminum* Manufactured with tighter tolerances than O.E.M. parts* Reversible design to keep your axle adjustment bolts from extending beyond their service range* Laser engraved WC logos* Anodized in Blue, Red, Black or Silver (raw)* Made in the USAClick here to watch the video...
Ref: 17-032 to 17-137
Precision CNCd from 6061 T-6 billet aluminumTighter tolerances than O.E.M. parts to help insure accurate alignment of the rear wheel so critical to prolonging chain and sprocket life Reversible design to keep your axle adjustment bolts from extending beyond their service rangeAnodized in Blue, Red or BlackMade in the USAClick here to watch the video ...
Ref: 21-031 thru 21-036
CNC machined from billet aluminum to exacting specifications Polished to a mirror finish prior to anodizing Engraved logo Available in Blue, Red or Black Made in the USAClick here to watch the video...
Ref: 21-700 / 21-705
CNC machined from billet aluminum to exacting specifications Polished to a mirror finish prior to anodizing Engraved logo Available in Blue, Red or Black anodized finish Made in the USAClick here to watch the video...
Unique (Patent Pending) Rubber Isolator Mounting System (RIMS) allows frame flex and rigidity properties to perform as the O.E.M. designedCNCd and formed from aircraft grade 6061 T-6 aluminumSpecific design and fit for each make and model Covers to protect frame rails but does not extend beyond rails CNCd aluminum brackets with quality hardware for secure mounting. Some models utilize stock mounting lugs. Skid Plate Foam included. Made in the USAClick here to watch the video...
Unique (Patent Pending) isolator mounting system allows frame flex and rigidity properties to perform as the O.E.M. designed CNCd and formed from aircraft grade 6061 T-6 aluminumSpecific fit for each make and model Narrow profile design coverage protects the frame rails and engine cases CNCd aluminum brackets with quality hardware for secure mounting. Some models utilize stock mounting lugs. Skid Plate Foam included Made in the USAClick here to watch the video...
CNCd and formed from aircraft grade 5052 aluminumReinforces radiators to help prevent costly radiator replacement Lightweight, custom fit, tuck in cleanly behind radiator shroudsSimple bolt-onMounting hardware included Made in the USAClick here to watch the video - See it in action ...
CNCd and formed from aircraft grade 5052 aluminumCovers and protects the rear brake master cylinder Provides increased surface area for improved grip and controlMade in the USAClick here to watch the video...
The Next-Generation in start devices Spring-less design delivers positive engagement and consistent release Easy set by rider start trigger CNC machined exclusively from aircraft grade aluminum Lightweight, complete assembly only 50 grams Custom drill guide template and countersinking tool included Detailed installation instructions include large step-by-step photos Laser etched logo Engineered, manufactured and assembled in the USA Patent Pending Click here to watch the video - See it in action ...Click here to watch the video - Installing the Pro Launch ...Click here to watch the video - Ken Roczen shows how he sets his Pro Launch by himself! ...
Sealed ABEC 1 + rated radial ball bearingLow friction, high wear resistance, internal polymer bushingDelrin thermoplastic cam pulleys match OEM/stock pull ratioCNC machined 6061 T-6 aluminum throttle tube and bearing insertGrip area knurled for maximum grip adhesionReplaceable end cap provides damage protection and seals out debrisAdditional O-ring set included for large I.D. barsFor use with stock throttle housing-No modifications required Click here to watch the video ...Application Fitment Chart ... Elite Throttle Tube MXA Review ...
CNC machined from aircraft grade 6061 T-6 aluminum Type III hard anodized coating for smooth throttle pull Knurled surface for maximum grip adhesionReplaces the stock plastic tube Click here to watch the video ...
CNCd and formed from aircraft grade 5052 aluminumReplaces the plastic stock unit Simple bolt-onMounting hardware included Made in the USAClick here to watch the video...
Ref: 24-590 / 24-595
Precision machined from 6061 T-6 aluminum Simple positive installation with an Allen wrench Replaces the stock plugs Polished to a mirror finish prior to anodizing resulting in a brilliant look Available in Blue, Red or Black Made in the USA Click here to watch the video...
Ref: 24-001 thru 24-003
CNC machined from 6061 T-6 aluminum Replaces the stock plastic plug Sealing O-ring includedAvailable Blue, Red or BlackMade in the USA. Click here to watch the video...
Fits Most Showa/KYB USD ForksEZ push-button operation eliminates harsh, built up air pressure instantlyRelieving air pressure allows your suspension to operate as designedCompatible with Kayaba and Showa upside-down forks equipped with stock bleeder screws Simple installation replaces OE bleeder screws in minutesTwo bleeder valves with adapters included in setClick here to watch the video...
Fits all.Lets air supply into the fuel tank, but stops fuel from coming outInstalls in place of the stock overflow hose in secondsCNC machined from 6061 T-6 billet aluminumAnodized rich Midnight Black with distinctive laser etched WC logoDurable 19mm long mounting hose includedClick here to watch the video...