A Robert Axle Project Lightning Bolt-On axle replaces the proprietary rear R.A.T. axle on Cervelo bikes with a simpler bolt-on design, and includes a replacement derailleur hanger for the axle to thread into.

Highlights

  • 12mm diameter, M12x1.75 thread, 170mm length, 12x142 hub
  • Includes a Cervelo R.A.T. derailleur hanger (direct replica of part DRH-WMN112)
  • 7075 aluminium shaft, hard-anodised: 36g axle, 54g axle and hanger combined
  • Installs and removes with a standard 6mm hex wrench

Fits Cervelo R.A.T. rear forks with a hanger

This axle is built specifically to replace the rear R.A.T. axle on Cervelo bikes with a 12x142 hub, and comes with its own derailleur hanger — it is not a generic 12mm axle. Robert Axle Project states it is not for attaching a trailer or trainer.

Compatibility & fit

Cervelo has used more than one R.A.T. generation, so confirm your exact frame before ordering. 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.
  • 12mm diameter, M12x1.75 thread, 170mm length, 12x142 hub
  • Replacement Cervelo derailleur hanger included (replica of DRH-WMN112)
  • 7075 aluminium shaft, hard-anodised: 36g axle, 54g with hanger
  • 6mm hex wrench installation, no special tools
  • Not rated for towing a trailer or trainer
Axle diameter12mm
Thread pitchM12x1.75
Length170mm
Hub spacing12x142 (rear)
Derailleur hangerIncluded, replica of Cervelo part DRH-WMN112
Material7075 aluminium, hard-anodised
Weight36g axle, 54g axle and hanger combined
FitCervelo R.A.T.-equipped rear forks only
SKU DTW-RAG-LIG623.C
Barcode # 602150474092
Brand Robert Axle Project