I just sent them mine in last month and they will rebuild them once a year for free. When I sent mine in they sent me the newer model. The new one had 8 adj on it now and anything past 5 and you will barely be able to move the bars and on 8 forget it, they will not move. They said that they are making this one unit for everything from 4 wheelers to litre bike. They tested the new model on the baja race and said it came back without one leak, compaired to mine that usually leaks after a couple of months of use.