These adaptors allow you to run multiple types of forks using the any Freedom Coast Fork Mount. The adapters require no tools and allow you to change in seconds. If you are not sure which size adapter your bike would need, it is almost always noted on the axle or on the fork itself. When buying any of our fork mounts, they come with one set of adapters (which you choose when purchasing). If you need extra adapters you are in the right spot. Here they are for reference: 15x110 - Boost spacing (mtb standard, this adapter will fit ALL boost forks) 15x110 Torque Cap - (Rockshox standard since 2015, will not fit other brand forks) 15x100 - Non Boost spacing (old mtb standard) 5x100 - quick release skewer (QR) - for hubs using a 5x100 qr axle and compatible with traditional 9x100 quick-release fork dropouts 15x150 - most fat tire bikes with thru axle 12x100 - all new road and gravel bikes with disc brakes 12x110 - e-road bikes 9x135 - quick release skewer (QR) - e-bike, some fat tire bikes 20x110 - Downhill (dual crown fork) *If you are unsure of your sizing, please measure first or send us a picture of the fork and axle. Explanation of Torque Cap vs Regular Selecting Adapter Size:
