105 FC-R7100 12-Speed Crankset Arm Length:175mm With a strong ergonomic handle

With a strong ergonomic handle and stiff nylon bristles

It can turn your tiny

providing the best beam pattern for optimal visibility in even the most challenging conditions

The data measured is just as accurate (+/- 1%) and the trainer is just as responsive and reacts instantly to speed or incline changes

And it folds up nice and compact for easy stowing whether you’re backpacking with friends or camping with the family

105 FC-R7100 12-Speed Crankset Arm Length:175mm With a strong ergonomic handleAn attractive aluminum crank with hollow arms for lightweight, rigidity, and durability The newly designed crank arms offer an optimized balance between lightweight and efficiency. The crank, formed with hollow aluminum technology, is anodized with a beautiful gloss black anodized finish, giving it a luxurious look. The resin ribs on the back of the chainrings are SHIMANO 105's unique structural design that achieves both thorough weight reduction and