Fits 1-1/8 Inch Metal Steerers: Designed for standard 1-1/8 inch threadless steel or aluminum fork steerer tubes; do not install a star nut in a carbon steerer, which requires a compatible compression plug instead
Straight, Consistent Installation: Thread the star nut onto the setter, place the outer guide squarely over the steerer tube, and tap the driver with a hammer; the guided design helps keep the nut aligned as it is driven into place
Replaceable Setting Screws: The hardened alloy setter includes two replaceable 304 stainless steel screws, giving you a spare for repeated fork and headset service without replacing the complete tool if one screw wears
Five Star Nuts Included: The kit includes five 1-1/8 inch star nuts for installation and future replacements, plus the setter body, two threaded setting screws, a fitted storage case, and an instruction manual for workshop use
For Home and Workshop Builds: Useful for fork replacement, threadless headset assembly, and MTB, road, gravel, or e-bike projects; confirm steerer material and size before installation, then inspect the headset before riding
