rear brake cylinder for Derbi Senda, Rieju 35812

Rear master cylinder with reservoir and brake light switch suitable for many mopeds with rear disc brake. This complete brake cylinder is a cheap alternative to the original part. The brake push rod is connected to the piston - it can be removed using a snap ring pliers and used with Derbi and Rieju mopeds. Piston diameter: 12.6mm. Mounting: 40mm or 50mm hole distance