KTM 300 SX Parts & Accessories (2023–2025) – Maximum Power. Minimal Compromise.
The 2023–2025 KTM 300 SX is the most aggressive two-stroke motocross weapon KTM has ever produced. With TBI (Throttle Body Injection), electric start, and a lightweight chassis, it delivers unmatched torque and throttle response — and it's already shaking up the 450 class. Whether you're racing MX, dialing in for the holeshot, or upgrading for better handling, this collection includes OEM service parts and high-performance aftermarket upgrades made specifically for the 2023, 2024, and 2025 KTM 300 SX.
We’ve curated the best performance parts and protective upgrades to help you get more power to the ground, reduce weight, and ride harder — lap after lap.
Top KTM 300 SX Performance Upgrades
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Race Pipes & Silencers: Tune your powerband with motocross-specific expansion chambers and lightweight silencers from FMF, Pro Circuit, and Scalvini.
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Suspension Tuning: Optimize holeshot control, bottoming resistance, and landings with fork mods, shock upgrades, and spring kits built for MX.
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Clutch & Power Delivery: Improve drive with billet clutch kits, high-performance baskets, and stronger springs for aggressive starts and durability.
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Controls & Ergonomics: Add precision with levers, throttle tubes, bar mounts, and grippy seat covers made for high-intensity riding.
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Lightweight Protection: Guard your engine, calipers, and radiators without adding bulk — using track-tested skid plates, case savers, and rotor covers.
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OEM Maintenance Parts: Stay race-ready with KTM-spec plugs, pads, filters, chains, sprockets, and fluids — all 100% matched to your model year.
Perfect Fit for 2023–2025 KTM 300 SX
Every part in this collection is verified to fit the 2023, 2024, and 2025 KTM 300 SX. Whether you’re upgrading for race day or maintaining peak performance, you’ll get components engineered to install easily and perform flawlessly at the gate and beyond.
Race-Proven. Track-Ready.
The 300 SX isn’t just powerful — it’s a game-changer. We stock parts that match its intensity, from holeshot devices to lightweight exhausts and pro-level tuning kits. Whether you're a weekend warrior or pushing for podiums, this gear is made for serious moto riders.
Trusted Brands for Serious Racers
Shop the best from FMF, Pro Circuit, KTM PowerParts, Hinson, Motorex, Twin Air, Renthal, and Acerbis. These brands are built for motocross and trusted by pros around the world for their strength, performance, and fitment accuracy.
Fast shipping from Poway, California, or stop by for in-store pickup if you're local. Have questions about setup or tuning for your 300 SX? Get in touch with our team — we’re real riders and race techs, and we’re here to help.
The KTM 300 SX is the future of 2-stroke motocross. Let’s build yours to win.
