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The Robert Axle Project - Thru Axles that fit your Bike & Lifestyle!

The Robert Axle Project manufactures 12mm and 15mm thru axles for all types of bicycles - mountain bikes, road bikes, cross bikes, gravel road bikes and e-bikes. Discover the lightweight, low-profile Lightning Bolt-On thru axles for forks and rear dropouts, the thru axles for attaching the "hitchmount" of child trailers and BOB trailers, and for using your bike on an indoor trainer.