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Helix Race Alloy Cranks

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Gravity riders value aluminum's impact resistance and dependability, but until now, aluminum cranks came with a stiff weight penalty. At e*thirteen we love the look and durability of aluminum, so we put our engineers to work designing a new aluminum crank that leverages the modular spindle design of our carbon cranks and adds sweet machined arms to the equation.

Our new Helix Race Alloy crank is a top-of-the-line aluminum crank that brings Enduro strength at a Down Country weight: just 556g for 165mm.

Extensively weight-optimized, almost every visible crank surface is CNC machined from a burly forged blank. It's available in black or bronze, and compatible with Boost or Super Boost chainlines by using our e*thirteen Helix Race Direct Mount Flip-Flop Chainrings.

  • Engineered to deliver Down-Country weight with Enduro strength
  • Forged, CNC Machined AL-6066-T6 arms and 30MM AL 7050-T7 spindle
  • Compatible with Helix Direct Mount Chainrings for Boost/Superboost Chainline
  • Self Extracting Bolt System
  • Proven creak-free Quick Connect ring interface
  • Molded crank strike boots and thick, clear polymer protective decals
  • Available in 3 sizes: 165mm, 170mm, 175mm
  • Offered in two machined and anodized finishes - Bronze or Black 
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Product Spec

Compatible with Helix Chainrings to achieve a 52mm Boost, or 55mm Super Boost Chainline using an innovative flip-flop design. Not compatible with UL or SL Chainrings.
Bronze & Black
All frames with 73mm or 83mm BB Shell
SRAM and Shimano 12 Speed compatible Narrow/Wide, ShimanoTM BB-92 and BB30 compatibility
Crankset, APS Adjuster, BB/Lockring Tool, Crank Boots (x2), User Manual
165mm, 170mm, 175mm
Forged, CNC Machined AL-6066-T6, arms, 30MM AL 7050-T7 spindle
Width: 68/73mm
Diameter: 30mm
Interface P3 Connect
165 x 73mm: 556g
170 x 73mm: 566g
175 x 73mm: 574g

Tech Info

User manual
How-to install
Frequently Asked Questions

Guaranteed to be free from defects in materials or workmanship for 5 years after original purchase