WPS - Western Power Sports 500010200401; Xtrig Pre-Load Adjustable Fits Yamaha Yz250/4 50F

A preload adjuster might sound like a small thing, but anyone who has needed to make changes to their shock settings knows that being able to do quick, easy adjustments can make a big difference. XTRIG had off-road racers in mind when the company designed its rear shock preload adjuster, which offers the maximum adjustment range with minimal effort. XTRIG preload adjusters make changing the rear shock absorber preload settings quick thanks to the simple design – an 8mm T-handle is the only tool needed to make adjustments. The adjuster utilizes the complete length of the shock body’s threads to move up and down, so it offers a greater range of adjustment. The adjusters are not hydraulic. Instead, the mechanical design has a worm drive gear system, which means there is no oil and no seals that might spring a leak. XTRIG’s engineers also took the off-road riding environment into consideration when they designed the preload adjusters; an area has been machined into the inner ring to allow dirt to wash out, keeping the shock assembly cleaner and running smoothly.