Praxis eCrank Carbon Crank Arms - ISIS Spline - 165mm - Black - No Spider - No Chainring - Pair Out of Stock The newer version has the

The newer version has the edges rounded to make them easier to line up during wheel changes and less likely to cut in crashes

Interchangeable lens: Yes

the Park PCS-4-2 is designed to last and look great for years to come

The heat-treated steel is chrome plated to aid in longevity and also improves aesthetics

Praxis eCrank Carbon Crank Arms - ISIS Spline - 165mm - Black - No Spider - No Chainring - Pair Out of Stock The newer version has theCarbon e cranks that are compatible with the following: BOSCH Gen2 4 motor with ISIS spindle. (NOT Bosch Micro ISIS) Yamaha PW X motors with ISIS spindle Giant SyncDrive Pro by Yamaha motors with ISIS spindle SPECS: L&R Carbon Arms 165 170 172. 5 175 MTN or Road use Alloy main crank bolt with self extractor 8mm Allen for install removal 50Nm torque BOSCH Gen2 4 motor with ISIS spindle (NOT Bosch Micro ISIS) Yamaha PW X motors with ISIS spindle Giant