5Dev Bosch e Cranks (IS Spline Drive)Ride With Confidence If you're looking to upgrade the cranks on your e MTB with a Bosch drive system, then you're in the right place. The 5Dev Bosch e Cranks are designed to work specifically with Bosch motors. The exclusive design will greatly reduce crank strikes when climbing through technical rock sections. These cranks are installed in minutes and are made to handle anything you throw at them. They are made from 7075-T651 aerospace aluminum and come with an alloy steel crank bolt and a billet aluminum self-extractor. Features Exclusive design greatly reduces crank strikes when climbing through technical rock sections Material: 7075-T651 Aerospace Aluminum Billet Machined Includes: Alloy steel crank bolt 8mm Hex (40 Nm), Billet aluminum self-extractor 16mm hex (2Nm)Designed for e MTBs with Bosch motors SPECIFICATIONSSpeeds11, 12-Speed BB Compatibility IS Spline Drive Chain Ring-Crank Arm Length155, 160mm BB Spindle Interface IS Spline Drive Chainring Material N/ABolt Center Diameter (BCD)N/ACrank Arm Material7075-T651 Aerospace Aluminum Billet Machined Chainline-Bottom Bracket Included No Intended Use Bosch Motors Weight440g (160mm) | 5Dev | Ecranks, Bosch R-Spec | Black | 160Mm | Aluminum