A genuine e*thirteen replacement axle and bearing kit for Gen 2 Boost 148 rear hubs, for rebuilding a worn or play-prone hub rather than replacing the whole wheel.

Fits e*thirteen Gen 2 Boost 148 x 12mm rear hubs (TRS Gen 2 and TRS Race Carbon Gen 2 hub shells, 2017–2019). Includes the axle, axle reducer, two bearings, washers, axle bolt and the 148mm endcap, endcap inserts and spacer cap; the freehub body and hub shell are sold separately. Hub axle kits are generation- and spacing-specific, so confirm your hub is a Gen 2 Boost 148 shell before ordering — e*thirteen's support site has hub identification guides, or Tune's workshop can check your wheel and fit the kit.

Compatibility & fit

Gen 2 Boost 148 x 12mm rear hubs only. Not compatible with Gen 3 SL hubs, non-Boost 142 x 12mm hubs, or LG1 downhill hubs — see e*thirteen's Gen 2 LG1 7-speed kit (ETS-HBS20-104) for those.

e*thirteen's general component warranty covers this axle kit for 10 years against manufacturing and material defects. 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.
  • Fits e*thirteen Gen 2 Boost 148 x 12mm rear hubs
  • Includes axle, reducer, bearings, endcap, endcap inserts and spacer cap
  • Freehub body and hub shell sold separately
Brande*thirteen
ModelGen 2 Hub Axle
FitsGen 2 Boost 148 x 12mm rear hubs
IncludesAxle, reducer, 2x bearings, washers, axle bolt, endcap, endcap inserts, spacer cap
Not includedFreehub body, hub shell
SKU DTW-ETS-HBS20-101
Barcode # 4710751503717
Brand e*Thirteen
Shipping Weight 0.4000kg