Shimano CS-HG710 105 12-Speed Cassette Swim-Accessories-Training Tools Rubber Mounting Option

Rubber Mounting Option

reduce your IM times and train your hands to remain in a flat

Perfect for all conditions

and it can be stored in the flipped up position

All you need is your bike

Shimano CS-HG710 105 12-Speed Cassette Swim-Accessories-Training Tools Rubber Mounting OptionThe 11 36T 12 speed cassette offers a wide gear range of 327%. 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.