INGRID Road 12 Speed Cassette - Shimano Size:11-44t This elastic yet durable protector

This elastic yet durable protector offers optimum padding for your elbows

it mounts and removes quickly with hook and loop fasteners

At its core is the DJI Avinox M1 drive system

using an overmolded soft touch TPU in three

INGRID Road 12 Speed Cassette - Shimano Size:11-44t This elastic yet durable protectorIts a single 12 speed road, gravel cassette with a total range of 400%, the same of a double road system. Yes, no any miracle, except for simplicity vs some big gap at the extreme of it, optimizing the middle to make it smoother in the mainly used srockets. We started with the 11t sprocket to minimize friction and power loss and at the same time use normal chainring at the front. Of course it could be fitted in old shimano HG freehubs. But even in XD