FSA CK-745 Crankset 170mm ISIS For. Bosch Gen4/BES2/BES3

Refresh your e-bike drivetrain with a clean OEM fit and a solid pedaling feel. The FSA CK-745 crankset is designed for Bosch Gen4 systems (BES2/BES3) and features the robust ISIS interface with M15 internal thread, ensuring stiff, reliable power transfer for city, trekking, and e-MTB use. Finished in sleek black and supplied without bolts, it’s a straightforward replacement when upgrading worn arms or standardizing crank length.

- Designed for Bosch Gen4 BES2 and BES3 for precise OEM compatibility
- ISIS spindle interface with M15 internal thread for a strong secure fit
- 170 mm length balances leverage, comfort, and cadence for most riders
- Stiff, durable construction for confident power transfer on e-bikes
- Clean black finish matches modern city, trekking, and e-MTB builds
- Supplied without fixing bolts so you can reuse or choose preferred hardware

Specifications
Brand: FSA
Model: CK-745
Type: Crankset
Length: 170 mm
Color: Black