King's 2.0 bumpstops were the right size for our Dixon front end. Per Dixon specs, King set the stroke length to 2.5 inches. The mounting design is cool- there's a threaded stem at the top, and a locknut holds the bumpstop in place in a King bumpstop can. The threaded stem eliminates the need for pinch bolts. Overly tight pinch bolts can bind the bumpstop's internals; the King design eliminates this potential problem altogether.