Nissin Rear Pistons Brake caliper repair kitRef : NI00391A / 1138692

NISSIN Rear Brake Caliper Piston Kit — manufacturer reference YRPK-002. Specifically designed for the maintenance of rear calipers on off-road motorcycles, this kit allows for the proper refurbishment of a NISSIN caliper by replacing the worn piston. Ideal for motocross sessions where brake maintenance is crucial after hours on the track.

• Brand: NISSIN
• Reference: YRPK-002
• Number of pistons: 1
• Position: Rear
• Category: Brake caliper repair kit
• Universe: Motocross

This kit contains the required piston for the specified application to replace parts that may wear or seize due to mud and heat. Replacing the piston during refurbishment prevents play and facilitates the restoration of the caliper before a new riding season. Suitable for NISSIN rear calipers mounted on the models listed below.

• YAMAHA YZ 450 F (2026)
• YAMAHA YZ 250 F (2026)
• YAMAHA YZ 250 (2026)

For thorough maintenance: check the condition of the seals, clean the piston housing, and replace the brake fluid if necessary during refurbishment.