Shimano CS- HG710 12 Speed 11-36T Cassette Lezyne The Topstone 3 GRX -

The Topstone 3 GRX - 1X delivers simplicity without sacrificing performance

the Model X is made with an entirely green process that doesn't compromise on quality or performance

TCR Advanced Pro 0 Disc (2021)

tubeless compatible Rear: Reserve 44

shock and water resistance

Shimano CS- HG710 12 Speed 11-36T Cassette Lezyne The Topstone 3 GRX -The 11 36T 12 speed cassette offers a wide gear range. From sprinting on the flats to steep climbs, you can choose the best gear ratio to suit every situation. Gear steps are optimized for pedaling efficiency, with the first eight cogs focusing on a natural and comfortable connection, and the largest four cogs allowing you to select from a wide range of gears while avoiding abrupt gear ratio changes.