Scooter rear shock gas absorbers YSS for Yamaha Grizzly YFM 700. The shock absorbers YSS Top-Line are equipped with internal gas tank to linear and precise to ensure optimum cooling. Strength, precision and performance are also guaranteed by the steel stem and treated with low friction special Teflon and machining precision. The shock is adjustable for preload by turning the adjustment ring in the spring, on return with base knob and on wheelbase of 5mm. Is designed and built to suit the specifications of the model on which it will be installed.