VRWEARE Motorcycle Brake Master Cylinder 7/8" (22mm) Right-Hand — Aluminium, 12.7mm Bore

This compact master cylinder offers a durable, lightweight replacement option built from aluminum alloy, engineered to fit 7/8" (22mm) handlebars with a 12.7mm piston bore. It arrives as a single, ready-to-install brake pump assembly (banjo bolt 10x1.25mm) that includes an M10 rear view mirror hole for versatile mounting. The unit weighs approximately 336 g, making it robust without adding unnecessary weight to your bike or scooter.

Will this master cylinder fit my handlebars and brake lines?

The VRWEARE brake pump is made for 7/8" (22mm) handlebars and uses a 12.7mm piston bore, with a banjo bolt thread of 10x1.25mm for most brake hoses. Confirming these measurements against your vehicle ensures proper fit and safe operation.

• Handlebar diameter compatibility: 7/8" (22mm)
• Piston bore diameter: 12.7mm
• Banjo bolt thread: 10x1.25mm
• Includes M10 rear view mirror hole for mounting flexibility

How easy is installation and what do I get in the box?

Installation is straightforward for mechanically inclined riders and mechanics; the unit is a single master cylinder assembly that bolts into place and connects to existing brake lines. Bleeding the brake line after installation is standard practice to remove air and restore firm lever feel.

• Package contains: 1 x brake master cylinder assembly
• Mounts to right-hand 7/8" handlebars
• Requires standard brake-line banjo bolt (10x1.25mm)
• May need basic tools and brake-bleeding supplies

What materials and durability features does this pump offer?

Constructed from aluminum alloy, this master cylinder balances corrosion resistance and light weight for everyday use on street and off-road machines. The design includes a mirror-mount hole and machining that supports secure attachment and consistent lever action.

• Material: aluminum alloy for reduced weight and good strength
• Approximate weight: 336 g (11.85 oz)
• Built for frequent use on scooters, dirt bikes, and ATVs
• Machined mount and mirror thread for added convenience

Who is this for? Riders and mechanics looking to replace a worn or damaged right-hand brake master cylinder on small motorcycles, mopeds, scooters, pit bikes, ATVs, go-karts and similar vehicles will find this VRWEARE unit a practical, universal option. It's especially suited to users who need a lightweight, aluminum upgrade or a direct-fit replacement for 7/8" (22mm) handlebars. Before buying, please double-check your handlebar diameter, piston bore, and banjo bolt thread to ensure compatibility.