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.

Helix Core e*spec Cranks are available in 24mm ISIS for a variety of popular motor systems, or 30mm ETOR for Fazua Ride 60.

Cranks for ISIS Spindle Motor Systems are available in 21.5mm and 26mm offsets, to customize fit, Q-factor, and ride feel.

Features
26mm offset cranks: Optimized for Bosch CX Gen4/Gen5 motor frames, but compatible with all ISIS spindle motors.
21.5mm offset cranks: Designed for optimal fit with Bosch SX, Brose S-Mag, Avinox, TQ HPR50 and Specialized 2.2 & 3.1.

Specifications
Chainline: Available in 24mm ISIS (21.5mm and 26mm offsets) for Bosch CX Gen4/SX, Brose, TQ HPR50 and Yamaha; and 30mm (18.5mm offset) for Fazua Ride 60
Chainring: Helix Race espec chainring, Helix Core steel chainring, espec Plus rings, 104BCD spider, or other rings designed to fit Bosch G4, Brose S Mag or TQ HPR50 (sold separately)
Color: Black
Compatibility: Compatible with Bosch® CX/SX, Brose® S Mag, TQ® HPR50, Fazua® Ride 60, Avinox®, Yamaha®, Maxon® and Specialized 2.2 & 3.1® motor systems
Included: Crankset, crank boots (x2), sticker, user manual
Length: 155mm, 160mm, 165mm, 170mm
Material: Forged AL-6066-T6 arms
Spindle: Compatible with 24mm and 30mm ISIS spindles

Mfr Claimed Weight
24mm | Bosch | Brose | TQ Model Weights
155mm: 481g
160mm: 497g
165mm: 513g
170mm: 529g

30mm | Fazua Model Weights
155mm: 448g
160mm: 463g
165mm: 478g
170mm: 493g