Helix Core e*spec cranks give your e-bike an upgrade with high-end integrity and aesthetics at a great value. Engineered for e-MTB strength, so you don’t need to worry about pedal strikes or holding back on your next gravity run. Forged aluminum arms keep you confident on the trail, while alloy self-extracting crank bolts mean efficient routine service, and minimum added weight. Added details like pedal washers, molded impact boots, and e-rider preferred shorter lengths deliver all the high-end features you'd expect from a crankset well over its price.

Features

• Forged for e-Enduro strength, with alloy self-extractor bolts, pedal washers, and molded impact boots
  
• 24mm ISIS interface compatible with Bosch Gen 4, Brose S Mag, TQ, Fazua, Yamaha, Maxon, and Specialized Brose motor systems
  
• Available in short lengths from 155mm for improved pedal clearance
• Compatible with 24mm ISIS Spindles
  
• Chainring sold separately
  
• Pedal Spindle: 9/16"

Crankarm Length

• 155 mm
• 160 mm
• 165 mm
• 170 mm

Material

• Forged, CNC Machined AL-6066-T6 arms

Weight

• 155mm: 481g
  
• 160mm: 497g
  
• 165mm: 513g
  
• 170mm: 529g

Contents

• 1 x e*thirteen Helix e*spec Crank Arms for BOSCH Gen4/Brose S Mag
  
• Crank Boots (x2)
• Sticker
• User Manual

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.