A forged alloy crank arm set built for trail and enduro riding, with a 24mm chromoly spindle for Boost or Super Boost chainlines.

Highlights

  • AL-6066-T6 forged alloy crank arms
  • 24mm heat-treated chromoly spindle, 73mm length
  • Self-extracting crank bolts
  • Fits Helix R, Helix Plus and Helix Base direct-mount chainrings, 28–34T
  • Works with SRAM and Shimano 11/12-speed drivetrains

Set your own chainline

Spacers set the crank to non-Boost, Boost or Super Boost chainline. Sold as the crank arm and spindle only — bottom bracket and chainring are sold separately.

Compatibility & fit

Fits frames with a 68/73mm BSA bottom bracket shell. Takes Helix R, Helix Plus or Helix Base direct-mount chainrings from 28T to 34T (sold separately). 175mm crank length.

e*thirteen covers this crank for 10 years against manufacturing and material defects, with a discounted crash-replacement option available. For warranty support, return the product to Tune Cycles and we'll manage the claim with e*thirteen's Australian distributor. This is in addition to your rights under the Australian Consumer Law — keep your proof of purchase.
  • 175mm crank length, 608g
  • 24mm chromoly spindle, 73mm
  • AL-6066-T6 forged alloy arms
  • Self-extracting bolts
  • Sold without BB or chainring
Crank length175mm
Weight608g
Spindle24mm chromoly, 73mm
BB fit68/73mm BSA shell
ChainlineNon-Boost / Boost / Super Boost (spacer-set)
Chainring fitHelix R / Helix Plus / Helix Base direct mount, 28–34T (sold separately)
MaterialAL-6066-T6 alloy arms, chromoly spindle
IncludedCrank, BB/lockring tool, lockring, APS adjuster
SKU DTW-ETG-CS4HBA-101
Barcode # 4711280340163
Brand e*Thirteen
Shipping Weight 0.9080kg