). These jam nuts are long and tapered at the end and don't go into the clamp hole. I just found a better product that looks more like the original tips, product 00276-00901, and have now replaced them. Maybe it's for steel rims, not aluminum? Despite this, they were installed without problems and used for many kilometers. I just wasn't sure if it would damage my wheel since it mates with a tapered shaft and not a flat surface.