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Robert Axle Project 12mm Thru Axles are designed to fit your 12mm thru-axle bike, allowing secure attachment of any hitch-mounted trailer.
Robert Axle Project 12mm Thru Axles are designed to fit your 12mm thru-axle bike, allowing secure attachment of any hitch-mounted trailer.
Robert Axle Project

The Robert Axle Project Hitch Mount (Kid) Trailer Axle 170mm length M12x1.75mm (KID223)

$57.95
Preorder

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritized (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or dispatch to you — it often never even hits the stock room shelves!

Prelaunch

With Prelaunch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Preorders.

So, instead, you can submit your email address for the item you are interested in, and we will email you as soon as stock arrives in the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indicative purposes only and can change at any time without notice.

The dates we provide are based on information given by our suppliers. Whenever we get updated information from our suppliers we will endeavor to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for dispatch to you or collection via Click & Collect on Undetermined

The Robert Axle Project Hitch Mount (Kid) Trailer Axle 170mm length M12x1.75mm (KID223)

Season:2026

Brand:Robert Axle Project

Code:375-1308

Robert Axle Project 12mm Thru Axles are designed specifically to fit your 12mm thru-axle bike and allow attachment of any hitch-mounted trailer.

These axles fit any trailer that has two wheels and a single point of attachment to the axle, including two-wheeled child, pet, and cargo trailers such as Thule, Chariot, Burley, Instep, Carry Freedom, and many more. Robert Axle Project's axles have been used for millions of miles in mountain bikes, road bikes, carbon bikes, fat bikes, and e-bikes, and are specifically designed to handle the high-torque loads generated by e-bikes.

Stock thru-axles are not strong enough to haul precious cargo, whereas these axles are 3 to 4 times stronger than the stock axle that came with your bike. Stainless steel axle ends provide a safe and secure attachment point of the hitch to the axle. The axle is quick to install and remove with a common 5mm hex key. Designed and made in the USA, these axles are machined to the tightest standards in the industry, with every batch safety tested to failure to ensure they exceed expectations.

Features:

  • Compatible with SRAM UDH and Transmission
  • Designed to handle high-torque loads from e-bikes
  • 3 to 4 times stronger than stock axles
  • Stainless steel axle ends for secure hitch attachment
  • Quick installation and removal with a 5mm hex key
  • Designed and manufactured in the USA
Technical Information
  • Compatibility
    Burley, Carry Freedom, Chariot/Thule, Croozer, Instep, SRAM UDH, Transmission
  • Axle lengths
    162 mm, 167 mm, 172 mm
  • Thread pitch
    1.0 mm
  • Material (shaft)
    7075 aluminum
  • Material (axle end)
    Stainless steel
  • Thread size (axle end)
    M10x1
  • Tool required
    5mm hex wrench
Sizing Information
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