Shimano GRX FC-RX810 1x11 Speed Crankset - 68-70mm Shell - 24mm - Four Bolt - 110 BCD Asymmetric Shimano - 175mm - Black - 42T - 50.1mm Chainline PDP|PLP|Brake Rotor Type The brake lever is ambidextrous

The brake lever is ambidextrous so they can be run right-rear

Cleat interface: The ATAC XC6's come with Time's own ATAC Cleats 13/17 which have a release angle of 13 or 17-degrees depending what cleat is on the right or left foot

Rotational Impact Protection System: B32 MIPS integrated into retention system (injection moulded LFL)

Material: 6061-T6 machined Aluminium base

This is very much a home tool

Shimano GRX FC-RX810 1x11 Speed Crankset - 68-70mm Shell - 24mm - Four Bolt - 110 BCD Asymmetric Shimano - 175mm - Black - 42T - 50.1mm Chainline PDP|PLP|Brake Rotor Type The brake lever is ambidextrousSHIMANO's FC RX810 1 crank balances weight and efficiency for mixed terrain riding. Gearing options cater for the specific demands of gravel riding and to maintain tighter gear steps for maintaining pedaling rhythm. It is offered in 40T and 42T chainring options and 170, 172. 5, and 175mm crank arm lengths.