These cranks are ISIS fit for Bosch Performance, Performance CX and older type Active Line. They will not fit the 2018+ Active Line / Active Line Plus motor which uses the smaller Bosch BNI Interface.
Compatible with:
BOSCH ""CX"" Motor#BDU37 with ISIS spindle
BOSCH ""SX"" Motor#BDU31 with ISIS spindle
GIANT SyncDrive Pro -With ISIS spline spindle
YAMAHA PW-X -With ISIS spline spindle
Not compatible with:
Bosch ""Micro-ISIS"" or ""Square Taper"" spindle motors
NOT FOR BOSCH BDU38 ""CX"" 2-BOLT MOUNT MOTOR