Tired of losing the wheel spacers (axle bushings) off your spare motorcycle wheels? I hope to have bought my last set now that I have a way to keep them in place - Bushing Bolt. Designed for my KTM rear wheel with 20mm axle. Adjustable from 154mm (6") to 254 (10"). Fits snug with my print settings but you may have to reduce/enlarge one part (98-102%) depending on your printers tolerances. Consider printing the first couple inches as a test print to determine fit. Ride Safe!