Shimano XT FC-M8100 Left Crank Arm - 175mm MFPN=2020 RAGE I 30.9 100 Made with lightweight 2014 aluminum

Made with lightweight 2014 aluminum alloy tubing and a cold forged aluminum alloy head Length 400 Material Aluminum Clamp Style Standard Rails Offset (mm) 20 Color Silver Diameter 31

Color Black/Gray Includes Gauge Yes High Volume Pump Yes Defined Color Black Valve Compatibility Presta and Schrader PSI 160

39 - 54mm reach

Run Time Up to 80h Lumen Range 1 - 50 Primary Color Pink Battery Type USB-C rechargeable Position Front Rechargeable Yes Light Type COB LED Output 40 lumens Bracket Silicone Strap

Thanks to its full X-Sync design the harder you pedal the better it shifts

Shimano XT FC-M8100 Left Crank Arm - 175mm MFPN=2020 RAGE I 30.9 100 Made with lightweight 2014 aluminumShimano XT Left Crank Arms