ZBROZ Timbersled X2 EXIT Rear Shocks for the RIOT System provide you with ultimate control, comfort, and stability for all riding conditions on your snow bike. Our coil-over spring setup will deliver that smooth plush ride on those whooped-out trails yet aggressive enough to handle larger hits, jumps, and drops. And when riding conditions or terrain changes, fine-tune your compression and rebound with a simple turn of the billet external compression and rebound adjuster knob.