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Working alongside our World Cup DH and Enduro athletes, e*thirteen engineered the new Helix Race GR Cranks. These Forged AL-6066-T6, CNC-sculpted aluminum cranks are designed for the rigors of downhill, big bike park laps, enduro, and freeride. The Helix Race GR shares the spindle design and low-profile shape with our top-end carbon and alloy cranks, with 83mm and 73mm spindle options. Helix Race GR cranks easily exceed ASTM 5 standards — a work of art made to take a beating.
- Exceeds ASTM 5 standards for Downhill, Bike Park, Enduro and Freeride applications
- Forged, CNC Machined, AL-6066-T6 arms and 30mm AL 7050-T7 spindle
- 73mm and 83mm spindle options for enduro and DH bikes
- Available in popular gravity crank arm lengths, 160mm and 165mm
- Molded crank boots, protective polymer decals, APS adjuster, and self-extractor system included
- 83mm crank requires the Helix GR Chainring. 73mm crank requires a standard Helix chainring.
Chainline
83mm spindle cranks: Helix GR Chainrings for 56.5mm chainline.
73mm spindle cranks: Helix Chainrings for 55mm chainline.
73mm spindle cranks: Helix Chainrings for 55mm chainline.
Chainring
83mm spindle cranks - Helix GR Chainring.
73mm spindle cranks - Helix Race, Helix Plus, or Helix Steel DM Chainrings. Not compatible with SL or UL Chainrings.
73mm spindle cranks - Helix Race, Helix Plus, or Helix Steel DM Chainrings. Not compatible with SL or UL Chainrings.
Color
Black, Sterling Silver
Compatibility
83mm cranks - all frames with 83mm BB shell. 73mm cranks - all frames with 68/73mm BB shell.
Features
Exceeds ASTM 5 standards for gravity use
Forged and CNC Machined for optimized strength-to-weight ratio and classic styling
Molded crank boots for rock strike protection
Adaptive Preload System (APS)
Proven P3 Connect polygon spindle interface
Forged and CNC Machined for optimized strength-to-weight ratio and classic styling
Molded crank boots for rock strike protection
Adaptive Preload System (APS)
Proven P3 Connect polygon spindle interface
Included
Crankset, APS Adjuster, BB/Lockring Tool, Crank Boots (x2), User Manual
Length
160mm, 165mm
Material
Forged, CNC Machined AL 6066-T6 arms, 30mm AL 7075-T7 spindle
Spindle
Width: 73mm or 83mm
Diameter: 30mm
Interface: P3 Connect
Diameter: 30mm
Interface: P3 Connect
Weight
83mm x 160mm: 590g
83mm x 165mm: 607g
73mm x 160mm: 584g
73mm x 165mm: 599g
83mm x 165mm: 607g
73mm x 160mm: 584g
73mm x 165mm: 599g
Guaranteed to be free from defects in materials or workmanship for 5 years after original purchase