DNM Rear Shock Absorber DNM MT-AR Fully Adjustable Rebound / Pre load Designed in Germany 1000 LB Spring Rate 290mm Fixing Hole Centre / Centre We also sell the DNM MTG-RC which in addition has fully adjustable compression. DNM is a well respected performance br&, producing some of the best suspension components available today for pit bikes. If you're serious about your pit bike then DNM is one of the best shock absorbers you can buy.