Dirt Bike Rebuild Kits and Parts

Dirt Bike Brake Caliper Rebuild Kits & Parts for Honda, Yamaha & KTM at JJ Motorsports

Restore your dirt bike's hydraulic braking system to like-new condition with premium caliper rebuild kits and parts from JJ Motorsports. Our selection includes complete kits with pistons, seals, O-rings, bleed screws, and hardware designed for leak-free operation, smooth piston movement, and reliable performance in motocross, enduro, and trail riding. Compatible with top models like Honda CRF, Yamaha YZ/WR, KTM SX/EXC, and more, these high-quality components eliminate sticky calipers, spongy feel, and fluid loss while extending caliper life in dusty, wet, or high-heat conditions. From Moose Racing's OEM-spec front and rear kits to individual seals and pistons, get everything needed for a full caliper refresh without replacing the entire unit—perfect for maintenance, race prep, or off-season rebuilds.

Shop trusted brands like Moose Racing for race-proven quality. Explore related categories such as dirt bike brake lines for hydraulic upgrades or dirt bike braking for pads and rotors.

Top Brake Caliper Rebuild Kits

• Moose Racing Caliper Rebuild Kit Rear Yamaha 18-1118 – Complete rear caliper rebuild kit for Yamaha models; includes piston, seals, O-rings, and hardware for leak-free, smooth operation.
• Moose Racing Caliper Rebuild Kit Front KTM 18-3283 – Front caliper kit with high-quality seals and piston for KTM SX/EXC; restores firm braking and prevents fluid bypass.
• Moose Racing Caliper Rebuild Kit Front Honda 08-101X – OEM-spec front rebuild kit for Honda CRF with all necessary components; ensures precise piston fit and long-term reliability.

Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!