Replacement APS (preload adjuster) for e*thirteen Helix Race Alloy cranks, the small part that lets you tune bottom bracket preload at the crank and keep it running smoothly.

One APS adjuster, sized for the Helix Race Alloy crank's Gen 4 self-extractor system.

Compatibility & fit

APS adjusters are specific to the crank arm they're machined for – this one fits Helix Race Alloy cranks only; e*thirteen sells separate versions for its carbon and Core crank lines, so check which crank you have before ordering. The Tune workshop can fit it as part of a crank or bottom bracket service.

e*thirteen's Infinite Ride Warranty covers this part for 10 years against manufacturing and material defects; normal wear on wear parts such as pawls, springs and cogs isn't covered. 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, so keep your proof of purchase.
  • APS preload adjuster, Gen 4
  • Fits Helix Race Alloy cranks
Brande*thirteen
FitsHelix Race Alloy cranks (Gen 4)
Part numberCSS40-105
SKU DTW-ETS-CSS40-105
Barcode # 4711280340477
Brand e*Thirteen

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