I use one of these on all of our bikes. I strap them down and then bleed the air out of the fork... Seals usually blow after the ride when pressure is still high in the fork and when the fork is depressed during hauling, the seal is under constant pressure. A note about size... The standard works for all full size bikes of course, and the mini works on 65 and 85's pretty well. If you have a supermini with larger front wheel on a 85cc chasis or if you have a ktm 105, the standard is difficult to get under the fender... just a little too long.