Racetech fork springs

A High Performance Spring has a high stiffness to mass ratio. In other words, it is light weight for a particular rate. This requires the finest materials. And, of course, you want the specific rate you’re paying for. Most manufacturers hold rates within +/-5%, this means a spring marked 5.0 kg/mm could be a 4.75 or even 5.25. (A spring marked 5.0 could be the same rate as one marked 5.4!) Race Tech Springs have extremely accurate rates because we 100% test our springs. Chrome silicon, high stiffness to mass ratio, shot peened, heat treated and pre-set (no sacking). These are the finest springs available, period! NOTE: There are so many makes and models of vintage motorcycles, if you order these, we will need your bikes info and your weight to get you the right springs for your application. Please "add a note to your order" when you check out or shoot us an email after you order to make sure we get you the right springs for your application.     Usually ships in 1-3 Business Days