Attaches a BOB Trailer to a bike with a 12mm thru-axle, replacing the rear axle so you get the rigidity of a thru-axle while hauling. This M12x1.75-thread version comes in two fixed lengths - pick the one your bike needs.

Highlights

  • 12mm diameter, M12x1.75 thread
  • 7075 aluminium shaft (hard black anodised), stainless steel ends
  • Installs with a standard 5mm hex wrench
  • Rated for e-bike torque loads

Compatibility & fit

Fits any bike with a 12mm thru-axle and an M12x1.75 thread (not frame-specific) - use Robert Axle Project's Axle Finder to confirm the exact length and thread your bike needs before ordering. BOB Trailer "bobbins" aren't included; reuse the ones from your old quick-release skewer or buy a pair separately. The Tune workshop can measure your existing axle and fit the replacement.

Options

LengthWhat differs
167mmfixed length, no spacers
209mmfixed length, no spacers, for wider dropout spacing
Robert Axle Project's lifetime warranty covers defects in material and workmanship to the original purchaser, for the lifetime of ownership - it excludes misuse, neglect, improper installation or maintenance, accident damage 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.
  • 12mm diameter, M12x1.75 thread
  • 167mm or 209mm fixed length, no spacers
  • 7075 aluminium shaft, stainless steel ends
  • 5mm hex wrench to install
BrandRobert Axle Project
Axle diameter12mm
ThreadM12x1.75
Material7075 aluminium shaft, stainless steel ends
Tool5mm hex wrench
Length167mm, 209mm
SKU DTW-RAG-BOB1-PAR
Brand Robert Axle Project