Alloy E-bike Armset - Yamaha/bosch | 170 Mm

E-CRANK ARM SET  in alloy or carbon fibre. SPECIFICATIONS E-CRANK CARBON Alloy, HD alloy or carbon cranks optimised/shaped for Bosch and Yamaha motors. Read on! BUY IT IF: You want to change the length or upgrade your eCrank for Bosch, Yamaha or Giant motors. MTN or road use MOTOR BOSCH ‘CX’ #BDU37 motor with ISIS spindle BOSCH ‘SX’ #BDU31 motor with ISIS spindle GIANT SyncDrive Pro - With ISIS spindle YAMAHA PW-X - With ISIS spindle MATERIAL Set of right and left arms Carbon fibre or forged alloy REF. WEIGHT 380g: Carbon (165mm w/boots) 454g: Alloy set 155mm 554g: Alloy HD set 155mm Q factor These are the Q factors when installing this crank on these motors: Q = 180 mm: on Bosch BDU37 or BDU31 motor Q = 170 mm: on Giant/Yamaha motor MAIN BOLT 8mm AL main crank bolt for installation/self-extraction | tightening torque 50 N·m Our eCranks with ISIS spline use our replaceable M24 alloy main bolt. TECHNOLOGY C.R.A.F.T. Carbon Mfg. NOTE MOTORS - Check the type of spindle on your Bosch/Yamaha/Giant motor. These cranks are designed for motors with ‘ISIS’ steel spindles. They can be installed on Bosch, Yamaha, Giant motors and some other brands of motors with ISIS steel spindles. These cranks are NOT compatible with Bosch ‘Micro-ISIS’ or ‘Square Taper’ motors. NOT FOR BOSCH BDU38 ‘CX’ 2-BOLT MOTOR