A Robert Axle Project Kid Trailer thru-axle built specifically for bikes using Mavic's Speed Release axle system, so you can tow a hitch-mount child, pet or cargo trailer from a Speed Release bike. This 165mm axle has a unique 1.0mm "double lead-in" thread that works only with the Mavic Speed Release system — it is not a standard M12 thread, so it will not fit any other bike.

Fit & installation

The shaft is CNC-machined 7075 aluminium with a hard black anodised finish; the axle end is stainless steel, threaded M10x1 to take the hitch supplied with your trailer (hitch not included). It installs and removes with a standard 5mm hex key.

Compatibility & fit

This axle fits Mavic Speed Release-equipped bikes only — check your bike's axle system before ordering. Confirm on Robert Axle Project's online Axle Finder (robertaxleproject.com), or bring your bike to the Tune Cycles workshop and we'll check your existing axle before fitting 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.
  • Proprietary double lead-in thread matched to the Mavic Speed Release system
  • CNC-machined 7075 aluminium shaft, hard black anodised for durability
  • Stainless steel axle end threads to the hitch supplied with your trailer (hitch not included)
  • Designed and manufactured in the USA, safety-tested to failure
Axle diameter12mm
ThreadMavic Speed Release (proprietary double lead-in — not a standard M12 thread)
Axle length165mm
Shaft material7075 aluminium, hard black anodised
Axle endStainless steel, M10x1 hitch thread
FitMavic Speed Release-equipped bikes only
SKU DTW-RAG-KID224
Barcode # 602150474047
Brand Robert Axle Project