The Monarch's lightweight design not only delivers silky smooth travel but thanks to a redesigned Solo Air spring with updated damping controls it also delivers a spring rate you'd generally only get from a much heavier coil shock. So you get a durable fully adjustable shock capable of smoothing out the most aggressive trails while simultaneously saving you weight for epic cross country riding. The Monarch RT3 features external rebound and 3-Position compression adjustment (Open/Pedal/Lock).Intended Use: XC TrailRT3 shocks feature external rebound and 3-Position compression adjustment (Open/Pedal/Lock) Solo Air lets you add air to your shock through a single Schrader valve filling both the positive and negative air spring chambers simultaneously. This gives you a plush predictable ride you can set up in seconds with the lightest weight air spring on the marketRapid Recovery allows the shock to recovery faster between consecutive bumps letting the wheel track the ground with greater precisionFast Black hard anodized forged aluminum body with sag gradients10mm 7075 aluminum shaft