Replaces the proprietary NAILD thru-axle on Marin and Polygon bikes with 12x148 Boost hub spacing, so the bike can mount on a wheel-on resistance trainer. Includes a replacement M12x1.0 nut to take the place of the NAILD nut that came on the bike.

Compatibility & fit

Fits Marin and Polygon bikes with the NAILD thru-axle system and 12x148 Boost hub spacing only - the 12x142 version of this axle (for Argon18 and some Marin bikes) is a separate listing. Confirm your bike's axle system with Robert Axle Project's online Axle Finder, or bring it to the Tune workshop and we'll check it.

Robert Axle Project's lifetime warranty covers defects in material and workmanship to the original purchaser, for the lifetime of ownership - it excludes misuse, improper installation, accidents and 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.
  • For NAILD-equipped Marin and Polygon bikes, 12x148 Boost hubs
  • M12x1.0 replacement nut included
  • 7075 aluminium shaft, hard-anodised
  • 5mm hex wrench to install
BrandRobert Axle Project
Axle diameter12mm
Hub spacing148mm (Boost)
FitsMarin and Polygon bikes with NAILD thru-axle
IncludesM12x1.0 replacement nut
Material7075 aluminium, hard-anodised
Weightapprox 104g
SKU DTW-RAG-TRA213.N
Barcode # 602150472777
Brand Robert Axle Project