To choose a H.A.T. , you'll need to know the thread pitch of your front thru-axle. The best way to do this is to remove your front axle, and see if it is written on the axle itself. If it's not, we highly recommend using the Robert Axle Project Axle finder Tool. Select "wheel only - front" and enter your bike details to find your axle thread pitch.
For a general guide to the thread pitches we offer, see below:
12 x 1.0, 1.5, and 1.75mm: Most gravel bikes - nearly all 12mm thru-axles will be one of these thread pitches. If you have a 12mm front axle and the Axle Finder doesn't give a result, use the Robert Axle Project 12mm thread measuring template.
14 x 1.5mm: 15mm thru-axle Fox forks. *On fox forks, while the axle diameter is 15mm, the thread diameter is 14mm.
15 x 1.5mm: 15mm thru-axle Rockshox Forks, MRP, SR Suntour, and other brands.