We will soon have the 2.5" version of our preload collars for the YZX shocks. It will be the same as our 2.0" , just bigger. Eliminates the need for dual spanner wrenches when adjusting pre-load, chewing up the OEM toothed versions, as well as bloodied knuckles from slipping off those..LOL!!. There is not a lot of room on the fronts for making preload adjustments and you tend to slip off and dent and ding everything around them when you slip off using a regular spanner wrench. Ours , using a pin style spanner; make the job much easier, and hassle free. The other pic show our adjustable crossover collars for the coming dual rate kit.