At DMG Motorsports, we present the All Balls Racing Rear Master Cylinder Rebuild Kit (21-81100) — a purpose-built repair solution engineered to bring your Husqvarna or KTM's rear brake system back to like-new condition. Leaking or spongy rear brakes are usually a sign that the internal seals in your master cylinder have worn out, and this kit gives you everything needed to re-seal the unit without the expense of buying a full replacement cylinder. Built to meet OEM specifications, it's a smart, budget-friendly way to restore reliable stopping power and get your bike back on the trail or track.

Features:

• Complete rebuild kit designed specifically for the rear master cylinder on compatible Husqvarna and KTM models
• Contains all the parts needed to re-seal a leaking master cylinder and stop fluid loss
• Includes cup seals to restore proper hydraulic sealing and brake feel
• Copper washers included for a secure, leak-free banjo bolt connection
• O-rings included to seal critical mating surfaces within the master cylinder body
• Replacement screws included where applicable for a complete, correct reassembly
• Manufactured by All Balls Racing to help restore master cylinder performance to like-new condition
• A cost-effective alternative to purchasing a full replacement master cylinder assembly

Fitment