High-Performance Racing Parts & Accessories
PERFORMANCE PARTS & UPGRADES FOR RACING
Welcome to ProX Racing Parts, your ultimate destination for high-quality racing parts. Our extensive inventory includes motorcycle parts, ATV parts, dirt bike parts, UTV parts, snowmobile parts, PWC parts, and moped parts. Whether you’re into powersports or need aftermarket racing parts, we have everything you need to enhance your ride.
SHOP POWERSPORTS PARTS BY MARKET
ProX Racing Parts proudly serves various markets with our extensive racing and performance
parts collection. No matter your power sports vehicle, our aftermarket racing parts are
engineered to meet every enthusiast’s and professional racer’s demands.
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Sale!
ProX Piston Kit – 85.00 MM (STD) – Polaris 850 Pro-RMK
Original price was: $165.95.
Your Price: $149.99Current price is: $149.99. SKU 01.5819.000 -
Sale!
ProX Piston Kit – 82.00 MM (STD) – Ski-Doo MXZ850 E-TEC
Original price was: $165.95.
Your Price: $149.99Current price is: $149.99. SKU 01.5817.000 -
Sale!
ProX Piston Kit – 92.95 MM (STD) – Polaris RZR900/1000
Original price was: $134.95.
Your Price: $119.99Current price is: $119.99. SKU 01.5913.A -
Sale!
ProX Piston Kit – 78.97 MM (STD) – CRF250R + CRF250RX
Original price was: $185.95.
Your Price: $164.99Current price is: $164.99. SKU 01.1350.A -
Sale!
ProX Piston Kit – 71.95 MM (+0.01 MM) – KTM300EXC TPI + TE300i
Original price was: $189.95.
Your Price: $164.97Current price is: $164.97. SKU 01.6388.B
PRO-X History
PROX RACING PARTS: QUALITY RACING AFTERMARKET PARTS SINCE 1975!
ProX Racing Parts headquarters are located near Amsterdam, The Netherlands. Founded in 1975, ProX Racing Parts are now distributed in many countries worldwide. Domestic and international dealers and distributors are being served from our facility in the Netherlands. The business is conveniently located in Nieuw Vennep, approximately 30 minutes from our capital, Amsterdam, and only 15 minutes from Schiphol International Airport.
ProX Racing Parts mainly specializes in high-quality internal engine components and replacement parts such as pistons, connecting rods, crankshafts, and valves. However, ProX Racing Parts is continuously expanding its range and therefore investing in other technical components regarding the various powersports applications that one can find also outside an engine. ProX Racing Parts stocks well over 8,000 part numbers divided over 60 different product groups.
ProX offers replacement parts from braking and suspension to fueling, steering, engine rebuild, air filters, and oil filters. All parts are manufactured to the highest quality standards at “state of the art” manufacturing facilities worldwide. These manufacturing factories include reputable businesses that manufacture OEM (Original Equipment Manufacturing) parts for leading motorcycle brands worldwide. ProX aims to deliver OEM quality replacement dirtbike parts, atv parts, utv parts, snowmobile parts, scooter parts, Jetski parts, and motorcycle parts. With the experience and long-established relationships, ProX Racing Parts is therefore always able to select the best manufacturer to meet or exceed high-level requirements regarding technical specifications and market.
ProX provides quality replacement parts for most powersport applications, including KTM, Polaris, Honda, and Yamaha parts.
Featured Video
Tech blog
2023 – ’25 KTM 300 SX Performance Replacement Parts Lineup
Reliable Pistons for Late-Model MX & Off-Road Motorcycles
Connect with us
🔧More late models covered with our OE-quality cam chains – YZ250F, KX450, KTM 690 ⛓
Cam chains seem to go unnoticed, but their impact on engine performance is undeniable. We know that a quality, reliable cam chain is paramount to keeping your engine turning. We’ve expanded our cam chain lineup to include fitments for the latest model Kawasaki KX450, KTM 690 Enduro R, and Yamaha YZ250F. See these and more quality parts at Pro-X.com.
#dirtbikes #motorcycle #maintenance #rebuild #prox #proxparts
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This '97 CR500R was meticulously restored by professional wrTyler Bairer007, who also happens tCarson Brownn_910's mechanic. The order of ProX parts to get this big-bore premix-burner beyond its former glory was substantial, but now it's rea#Prox #proxpartsp#BikeBuilda#2strokee#twostroker#cr500ro#honda #cr500r #honda
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Did you know ❓ The gold coating on chains is not just to look cool (although it does definitely look cool). Motocross and off-road chains are made of steel, which can rust very easily, something you've likely seen on a "standard" gray chain if left without lubricant or oil on it. The gold coating is actually there to help prevent corrosion, rust and other surface contaminants to prolong the life of the chain and protect the integrity of the material. Cool look and it's beneficial – Why not go gold? 🟡⛓
#motocross #mxchain #offroad #dirtbikes #dirtbikechain #prox #proxparts
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Only Gold in my book
Price for yz 250
The SLAM LIFE Racing team left their mark on the mountain with wins from Tyler Lynn and Mikayla “Kay Kay” Nielsen plus more top 5 finishes throughout a week in Mammoth 🌲🐻
#Prox #mammoth #mammothmotocross #mx #honda #slrhonda
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kevin horgmo ツ is your 24MX TOUR MX1 Champion 🏆 A pair of holeshots and early leads helped him maintain his points lead and earn his first French motocross title 🏁 | Powered by #Prox
#Prox #motocross #mx #frenchmx #honda
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#Prox riders from across the globe lined up at The Wick 338 Motocross 🌐 JWR Honda Racing and Cornelius Tondel made the trip where he qualified P3 overall and held on for P11 in moto 1, before an unfortunate crash in moto 2. Still, very impressive showing! In the 250 class, Levi Kitchen put Pro Circuit Racing on the podium with a 2-4 for 3rd overall. Always brutal fun running in the sand!
#motocross #southwick #Prox #honda #Kawasaki
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Spend Less, Ride More! 💸 Our July 4th sale STARTS NOW with 10% off EVERYTHING at Pro-X.com using code FREEDOM. From basic maintenance with air filters and oil filters to complete rebuilds, and everything in between, save on what you need so you can spend it on going riding! Shop Now 👉 www.pro-x.com/
#July4thSale #Prox #DirtBike #maintenance
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🟩 2025 – '26 KX250/X Owners! 🟩 If you're ripping one of these new 250 machines from Kawasaki, chances are it's spending quite a bit of time high in the RPMs or even on the rev limiter. Our FORGED replacement pistons are complete and ready to ship for these bikes, offering precise rebuilds with A/B/C sizing. ⤵
💹 Forged construction and boxed & strutted design for optimal strength
💹 Improved skirt stability for optimal piston-to-wall clearance and ring seal
💹 Available in graded A/B/C sizing for a precise fit
💹 Supplied in a kit with rings, pin, and locks
💹 Retains OEM 14.0:1 compression ratio
See them here: www.pro-x.com/?s=01.4355&post_type=product
or wherever you like to buy parts to prepare for your KX's refresh.
#kawasaki #kx250 #kx250x #prox #piston #forgedpiston #dirtbike #dirtbikerebuild #topendrebuild
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New models covered! ⚙ Front & rear sprockets are now available for Triumph TF 250-X and KTM / Husqvarna / GASGAS 65cc models. Grab 'em on our site or ask for them wherever you like to buy parts! 👇
🟡 Rear sprockets machined from high-grade 7075-T6 material for strength
🟡 Lightweight design with self-cleaning mud grooves to maximize durability
🟡 Rear sprockets available for Triumph TF 250-X in 47T-52T sizes and KTM+ 65cc models in 47T-50T sizes
🟡 Front sprockets manufactured from low-corrosion, high-grade steel
🟡 Front sprockets available for Triumph TF 250-X in 12T-15T sizes and KTM+ 65cc models in 13T-15T sizes
#prox #sprockets #dirtbikesprockets #Triumph #KTM #Husqvarna #GASGAS
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RACE WINNING BRANDS FAMILY
SHOP HIGH-GRADE RACING PARTS & ACCESSORIES FROM PROX
At ProX, we are dedicated to meeting the needs of every powersport enthusiast with our
extensive range of racing and performance parts. We serve many markets and offer top-quality
parts and upgrades for motorcycles, ATVs, dirt bikes, UTVs, snowmobiles, PWCs, and mopeds.
Our aftermarket racing parts are designed to enhance performance, durability, and reliability
across all terrains and conditions. Whether you’re looking to upgrade your vehicle for racing or
seeking reliable parts for maintenance, ProX has everything you need to keep your ride in top
condition.