M63 7-Speed Index CassetteThe Sunrace M63 7 Speed Index Cassette is a reliable and value oriented drivetrain component designed to deliver smooth, accurate shifting for 7 speed bicycles. Whether youre riding a mountain bike, hybrid, commuter, or touring bike, this cassette provides dependable performance and consistent gear changes across a practical range of terrain. Precision machined sprockets and indexed gearing help ensure crisp, positive shifts under load, while durable

integrated cable routing

- 16 Pins in set (M4)

- Tyre width: 23-35mm / Weight: 1450g

Laser-cut venting for breathability

SILCA Latex Inner Tube Upgrade (2 wheels): 4-10 Watts

MODEL NO: ST-RX600

- Waterproof construction for use in water and on land

Schrader Valve Adapter

this trusted technology is available in the 1900 range

They free your fingers

5-millimeter pistons for best-in-class power

Even if your exercise session is brief