Wolf Tooth Elliptical 107 BCD Chainring - 38t Compatible SRAM 107 BCD Drop-Stop B 4-Bolt BLK ModelNumber=E3939 Reduced friction internal sealing

Reduced friction internal sealing

9 30w Rim - 27

The ARC1100 feature a new 180 Dicut Aero hubs as well as new Aero Lite II and Aero Comp II spokes for ultimate performance gains

This effect of putting far less strain on your back has been awarded with the seal of quality of "Campaign for Healthier Backs"

and the SL Range Extender Battery

Wolf Tooth Elliptical 107 BCD Chainring - 38t Compatible SRAM 107 BCD Drop-Stop B 4-Bolt BLK ModelNumber=E3939 Reduced friction internal sealingWolf Tooth Elliptical 107 BCD Chainring 38t Compatible with SRAM 107 BCD Drop Stop B 4 Bolt Black. The Wolf Tooth Elliptical 107 BCD Chainring for SRAM cranks is compatible with most new SRAM 1x road cranks that use the 107 BCD spider including the SRAM AXS Power Meter Spider. This chainring uses the patented Wolf Tooth Drop Stop B Wide Narrow tooth profile that is optimized for drop bar bikes and designed best wear life mud clearance and chain