
Wolf Tooth Crown Race Adapters allow the use of forks with 1 1/8 or 1 1/4 steerer tube diameters in headsets designed for 1 1/2 steerer tubes. Many dual-crown suspensions forks such as the RockShox Boxxer or Fox 40 use non-tapered 1 1/8 steerers, and require a 1 1/8 to 1 1/2 adapter crown race for use in frames designed for a tapered steerer. Some road, CX, and bikepacking forks have 1 1/4 lower steerer tube diameters that would require an adapter to use a headset with a 1 1/2 lower headset cup. For more details and compatibility information for this product please visit https://www.wolftoothcomponents.com/