12mm Thru Axle for Kid Trailer: For Cervelo R.A.T. with Derailleur Hanger
This is a thru axle so you can attach a child trailer to a Cervelo R.A.T. bike. Robert Axle Project Thru Axles for Kid Trailers are designed specifically to fit your 12mm thru-axle bike and allow attachment of any two-wheeled, hitch-mounted trailer, such as Thule, Chariot, Burley, Instep, Carry Freedom and more.
Simplify your life by allowing quick and secure attachment of your trailer to your best and favorite bike. Share your stoke and enjoy the adventure!
This axle will replace the R.A.T. axle found on all Cervelo R.A.T. equipped bikes. This axle includes our precision machined replacement derailleur hanger with with traditional threads, which creates a complete threaded thru axle system. Our derailleur hanger matches the geometry and construction of the stock derailleur hanger in every way, for crisp shifting performance.
*Did you use our Axle Finder to find this product? That is the BEST way to find the thru axle that fits your bike!
This is a thru axle to attach trailers to Cervelo R.A.T. bikes. Since 2013, we have been a part of cycling adventures all over the world. Our thru axles have millions of miles on them – on mountain bikes and road bikes, gravel and cross bikes, fat bikes and e-bikes.
Your stock thru-axle that came with your bike is not designed to haul your precious cargo, like your kids, your pet or your gear! Robert Axle Project thru axles are specifically designed to handle the heavier load of a trailer behind your bike, and are 3 to 4 times stronger than the stock axle that came with your bike. Our 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, allowing ease for repairs or removal.
Our axles are designed, machined and tested in the USA, by avid cyclists, to the tightest standards in the industry. We safety test, to failure, every batch of axles we produce to ensure they exceed your expectations for quality and safety.
WARNING: This product can expose you to chemicals including nickel acetate, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Robert Axle for Kid Trailers replaces your stock thru-axle so you can attach a child or cargo trailer to your 12 mm thru axle equipped bike.
- This axle is compatible with Burley, Carry Freedom, Chariot/Thule, Croozer, Instep, and many more hitch style trailers.
- The true length of the axle shaft is 170 mm. Please note: Thru-axle lengths do not equal hub standards. An axle has to be longer than the hub to fit in the frame. A 12×142 hub does not equal a 142 mm long axle.
- The thread pitch of this axle is 1.75.
- This axle is specific to Cervelo bikes that have the R.A.T. axle. It includes our Cervelo R.A.T. derailleur hanger.
- The axle shaft and axle end are precision CNC machined.
- The axle shaft is 7075 aluminum and hard black anodized for rugged durability.
- The axle end is stainless steel, which allow for mounting of the hitch provided with your trailer. The threads are M10x1 (metric).
- Hardware for attachment of the hitch is included; the hitch is not.
- No special tools required. Design allows for installation or wheel removal using your standard 5mm hex wrench.
- Designed, built and quality tested in the USA. Proven around the world.
Need more information about how our axles work?
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