Round Reservoir Brake Master Cylinder with Mirror Mount – 22mm Universal Front Pump

A dependable universal replacement for worn factory front brake and clutch pumps, this round-reservoir master cylinder combines the fluid reservoir, pump body and lever in one compact black cast-aluminum unit. The clamp integrates a mirror mounting perch, so the original mirror screws straight back on without extra hardware — a favorite retrofit on Yamaha LC135 / LC150 and similar underbone street bikes across Southeast Asia and Latin America.

Key features

• Integrated round reservoir – DOT3/DOT4 fluid with clear level window and four-screw filler cap
• Built-in mirror perch – keeps the stock mirror position after pump replacement
• Left / right options – order brake-side, clutch-side or matched pairs
• Standard lever & bleed port – familiar layout for any workshop, with bleed hose included
• Universal 22 mm clamp – bolt-on fit for most street motorcycles and underbones

Ideal for

Importers and wholesale distributors serving the huge underbone / moped service market in Latin America, where LC135-type bikes are daily transport. A low-cost, high-turnover replacement part that every neighborhood mechanic stocks.