Built for the latest breed of e-mountain bikes, Hope's E-Bike Crankset puts short, strong aluminium arms on your motor for more ground clearance on technical climbs. This is the narrow offset version, matched to Brose and Avinox motor systems.

Highlights

  • Designed for maximum ground clearance
  • Self-extracting system for easy fitting and removal
  • Forged and CNC-machined 7150 series aluminium arms
  • Short 155mm or 165mm lengths
  • Designed, tested and made in Barnoldswick, UK

Why shorter cranks on an e-bike

Motor assistance means you rarely need long cranks for leverage, while shorter arms reduce pedal strikes on rocky, rooty climbs where e-bikes spend a lot of time.

Three offsets

Hope makes this crank in three offsets to suit different motors and frames: Standard, Narrow and Specialized. Choosing the right one keeps the arms clear of your chainstays and motor cover. This listing is the narrow offset.

Options

ColourLength
Black155mm, 165mm
Blue155mm, 165mm
Bronze155mm, 165mm
Orange155mm, 165mm
Purple155mm, 165mm
Red155mm, 165mm
Silver155mm, 165mm

Compatibility & fit

Compatible only with motor systems using an ISIS spline axle/crank arm interface. Narrow offset: Hope rates this model most suitable for Brose and Avinox systems. It can also be used as a narrower Q-factor option on Bosch systems where the frame has adequate clearance, but it is not compatible with the Bosch gen 3 (BNI) spindle interface. Chainstay clearance varies between brands and models, so check your bike against Hope's E-Bike Crank fitment diagram before ordering. Fitting is a separate Tune Cycles workshop service, not included in the price – book at tunecycles.com.au/book.

Hope Technology covers its components for two years from the original date of purchase against manufacturer defects in materials and workmanship; damage from normal wear, misuse or not following Hope's recommendations isn't covered. For warranty support, return the item to Tune Cycles with your proof of purchase and we'll manage the claim for you. This is in addition to your rights under the Australian Consumer Law.
  • Maximum ground clearance design
  • Self-extracting fitting and removal
  • 7150 series forged and CNC-machined aluminium
  • Narrow offset for Brose and Avinox systems
  • ISIS spline motor interface
  • Weight 472g (Hope figure)
BrandHope Technology
ModelE-Bike Crankset
OffsetNarrow
MaterialForged and CNC-machined 7150 series aluminium
Motor interfaceISIS spline only
Weight472g (Hope figure)
ColoursBlack, Blue, Bronze, Orange, Purple, Red, Silver
Lengths155mm, 165mm
SKU BSP-HOPFCEBN
Brand Hope