wolftooth corona aero sram bcd 107 1x 12v Variant:48 teeth, black, DROP-STOP B (compatible with Eagle and FlatTop, not compatible with SH12 and KMC12) SmartHead™ works with Presta and

SmartHead™ works with Presta and Schrader valves without swapping parts

you can easily add a rear strap to the chest protector

Compatible cassette sprockets

and golf course maps- Contactless payment

wolftooth corona aero sram bcd 107 1x 12v Variant:48 teeth, black, DROP-STOP B (compatible with Eagle and FlatTop, not compatible with SH12 and KMC12) SmartHead™ works with Presta andSpeeds: 12 v Bolt circle diameter (BCD): 107 mm Shape: round Anti drop technology: Drop Stop B Compatible with Sram cranksets with 107 mm BCD with and without Power meter including SRAM Red XPLR AXS NOT compatible with Sram Rival 107 BCD with integrated and non removable spider (models ID's FC RIV and PM RIV D1) Weight: 121g Compatible with all 9, 10, and 11 speed chains, with 12 speed Sram Eagle, T type and FlatTop, Connex, Wippermann, and Campagnolo