TreeFrog unique 9-15x100mm universal fork mount could support 9x100mm quick release/9QR rim brake bikes, and 15mm thru axle mountain-bikes with disc brakes, and going back and fort between the 2 most popular 9x100mm quick release system, and the 15mm thru axle mountain-bike industry sizes, without changing the fork mount! If you have a 15x110mm boost size mountain-bike, you can order a green 15x10mm Boost Spacer from our accessories page, and adding to the 15x100mm fork mount to carry a 15x110mm bike.
If you have 2 or more bikes with 9x100mm and 15mm thru axle, our fork mount would be the perfect solution for you!