Improve the suspension of your mountain bike or replace a worn-down rear shock using this DNM Mountain rear shock. Measuring at 200mm from eye to eye, and weighing only 820g, this lightweight rear shock is made of dark hard-anodized steel, with a hard chromed shock shaft, and a high quality surface finish. It provides a number of adjustments, including rebound, compression and high pressure adjustment. Spring rate of 550lbs.