A Robert Axle Project Lightning Bolt-On axle swaps a stock Fox thru-axle for a lighter, lower-profile bolt-on one machined from 7075 aluminium — this listing is the 15mm x 155mm x M14x1.5 front axle with the floating shim fitted to 2021-and-newer Fox 36 and 38 forks.

Highlights

  • 15mm diameter, 155mm length, M14x1.5 thread
  • Includes the floating shim 2021+ Fox 36/38 forks need
  • 7075 aluminium shaft, hard-anodised finish, 53g
  • Installs and removes with a standard 6mm hex wrench

Which axle your Fox fork needs

2021-and-newer Fox 36 and 38 forks use a floating axle design, so they need this .F version with its floating shim. Other 15x110 Boost Fox forks take Robert Axle Project's plain Lightning Bolt-On axle (no shim) — a different listing. Fitting the wrong one will not seat correctly.

Compatibility & fit

Thru-axle length and thread pitch are frame-specific, and a wrong axle can fail to seat properly or work loose under load. Confirm your bike on Robert Axle Project's online Axle Finder (robertaxleproject.com) before ordering, or bring your bike to the Tune Cycles workshop and we'll measure your existing axle and fit the replacement.

Robert Axle Project warrants its axles to be free from defects in material and workmanship for the lifetime of the original purchaser's ownership, covering manufacturing faults only — not misuse, crashes, incorrect installation or normal wear and tear. For warranty support, return the product to Tune Cycles and we'll manage the claim with Robert Axle Project's Australian distributor. This is in addition to your rights under the Australian Consumer Law, so keep your proof of purchase.
  • 15mm diameter, 155mm length, M14x1.5 thread
  • Floating shim included for 2021+ Fox 36/38 (15x110 Boost)
  • 7075 aluminium shaft, hard-anodised, 53g
  • 6mm hex wrench installation, no special tools
Axle diameter15mm
Thread pitchM14x1.5
Length155mm
Hub spacing15x110 Boost
Fork fit2021+ Fox 36 and 38 (floating axle design) only
Material7075 aluminium, hard-anodised
Weight53g
SKU DTW-RAG-LIG504.F
Barcode # 602150476959
Brand Robert Axle Project