The technique for checking the front forks is to put a tiewrap around one leg and push it up against the oil seal. Then go for a ride and when you stop you will hopefully not have the tie wrap right at the bottom. If it is right on the bottom of the leg then you have run out of suspension and need to sort the preload (big adjuster nut at the top). The RATE of dive is controlled by the compression though, which will be on the bottom somewhere. |