High-quality Material: Crafted from 6066 seamless aluminum alloy with a forged joint, this for BOLANY rear shock absorber is designed to endure the toughest trails and provide a smooth ride on mountain bikes, including soft tail frames and electric downhill bikes. Advanced Damping and Lock System: Equipped with a sophisticated damping system and a lock feature, this shock absorber enhances control and stability during aggressive downhill rides, ensuring safety and performance. Optimal Compatibility and Performance: With travel lengths of 50mm and installation hole spacing of 190mm, this rear shock is versatile and suitable for a wide range of mountain bikes. The piston type air mechanism supports a maximum air pressure of 180-250psi, adapting to various rider weights and trail conditions. Lightweight and Durable: Weighing only 290g to 310g, this shock absorber does not add significant weight to your bike, promoting efficiency and maneuverability. The installation hole inner diameter of 12mm and lining size of 8x24mm ensure a perfect fit and easy installation. Enhanced Riding Experience: By integrating for BOLANY's technology in this air rear shock absorber, riders will experience improved traction and comfort, making it ideal for both casual rides and competitive downhill races. Stroke length:50mm Mounting hole spacing:190mm Mounting hole inner diameter: 12mm Bulb size: 8x24mm Piston type: Air Suitable for: Downhill mountain bikes/Electric downhill bikes Maximum air pressure: 200-300psi Color:Black Material:Aluminum alloy Specification:190MM Silver Label Package Contents: 1 * Bike Air Rear Absorber