This rubber dust cover is similar dimension to BREMBO Master Cylinder Boot 110.3741.20 but has one extra fold in the tapered concertina. 

It is original fitment for the PS12 rear master cylinder that has a 50mm mounting bolt centre distance as fitted to Laverda RGS1000 models. It is a spare part for many Aprilia and Moto Guzzi models that use a similar master cylinder.

This rubber protection cap is specifically longer to cover the activation push-rod of the rear Brembo Master Cylinders fitted to these models.

(The master cylinder with 50mm mounting bolt centre distance is no longer available as a complete item)

Note: The Repair Kit for the Master Cylinder with Activation Push-Rod and 50mm mounting bolt centre distance is no longer available. To repair the master cylinder it is often possible to purchase the corresponding diameter piston seal kit e.g. PS12 Repair Kit, and transfer the seals to the existing piston.

• Suitable for many Laverda, Aprilia and Moto Guzzi models
• Long design - extended protected area
• True to original fit for easy installation
• Protects against dust, water and mechanical influences
• Extends the service life of pistons and seals