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The KTM SX 400 is a pure motocross machine that marked an era in European off-road competitions: a lightweight and responsive frame combined with a 4-stroke engine capable of delivering linear and controllable power even in extreme mud and gravel conditions. To maintain this perfect balance between agility and braking power, the original brake discs require complete regeneration after years of intensive use.
The Brembo Serie Oro Brake Discs for your SX 400 are offered in a complete kit: 68B407B8 (front 260mm, thickness 3.5mm) and 68B40752 (rear 220mm, thickness 4mm). Both components maintain original geometric specifications, guaranteeing plug-and-play installation without modifications to connected components.
The forged aluminium bell significantly reduces unsprung weight compared to cast iron discs, improving frame response and the natural oscillation frequency of the wheel. The peripheral drilling accelerates heat evacuation during intense braking and allows residual gases to escape, maintaining an optimal friction coefficient between pad and disc at all times—essential for fast passages and tight motocross corners.
Both axles benefit from TÜV type approval and ECE marking for European road circulation, while retaining the robustness required for off-road use. Installation is direct with no need for fork or shock absorber servicing: a true OEM replacement that requires no modifications to brake supports or brake lines.
Every disc is 100% Made in Italy and covered by Brembo 2-year warranty. Purchase your kit on M4Tuning.com and rediscover the precise and modular braking your SX 400 deserves.
Your KTM is not the only one covered: discover all Brembo Serie Oro KTM brake discs.
