Helix Race Carbon e*spec Crankset 155 mm Bosch

Helix Race Carbon e*spec Crankset – 155 mm, 24 mm ISIS/Bosch – Ultralight carbon arms, high strength-to-weight ratio, Trail & All-Mountain ready, ASTM 5 certified, includes crank boots, pairs with Helix Race e*spec chainring. Weight ~320 g. Graphite finish.

The Helix Race Carbon e*spec Crankset – 155 mm represents the pinnacle of ultralight e-MTB crank design. Forged from high-grade carbon with advanced layup and molding techniques, it delivers the highest strength-to-weight ratio available in the e-bike world. ASTM 5 approved, it’s light enough for trail and all-mountain riding, yet strong enough for aggressive shuttle days at the bike park.

• Compatible with 24 mm ISIS and Bosch motor systems

• Optimized for use with Helix Race e*spec Chainring (sold separately)

• Includes crank boots, sticker, and user manual

• Carbon arms provide stiffness and weight savings

• Graphite finish with professional-level aesthetics

Quick Feature Highlights:

• 155 mm length – compact for tight trails and pedaling efficiency

• Ultralight carbon construction – ~320 g

• ASTM 5 gravity-approved – strong enough for bike park use

• Includes crank boots for rock strike protection

• Compatible with 24 mm ISIS / Bosch motor system