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.

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  Compatible with 24 mm ISIS and Bosch motor systems

  
  


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

  
  


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  Includes crank boots, sticker, and user manual

  
  


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  Carbon arms provide stiffness and weight savings

  
  


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  Graphite finish with professional-level aesthetics

  
  

Quick Feature Highlights:

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  155 mm length – compact for tight trails and pedaling efficiency

  
  


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  Ultralight carbon construction – ~320 g

  
  


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

  
  


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  Includes crank boots for rock strike protection

  
  


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  Compatible with 24 mm ISIS / Bosch motor system