wolftooth corona sram bcd 107 4 fori 1x 12 13v Variant:40 teeth, black, DROP-STOP B (compatible with Eagle and FlatTop, not compatible with SH12 and KMC12) thru axle 12mm

thru axle 12mm

Bearing contact angles ("inner" x "outer"): 45° x 90°

They have completely redesigned the road drivetrain for a wider range

an eBike with a distinctive look to move freely in style

wolftooth corona sram bcd 107 4 fori 1x 12 13v Variant:40 teeth, black, DROP-STOP B (compatible with Eagle and FlatTop, not compatible with SH12 and KMC12) thru axle 12mmSpeeds: 12 13 speed 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 (non removable) spider models ID's FC RIV and PM RIV D1 Weight: 72 g Compatible with all 9, 10, and 11 speed chains, with 12 speed Sram Eagle, T type and FlatTop, Connex, Wippermann, and