Front shock set with springs tuned specifically for the XR311 Combat Buggy. 【Features】 Spring preload (initial load) is adjustable. High-precision, low-friction: high-precision CNC-machined shock bodies and low-friction shafts. RC Channel's new design achieves very large stroke travel. Easy to disassemble and assemble, making maintenance simple. Each shock is fitted with silicon O-rings and pre-filled with oil, set for optimal performance. Low-friction materials: shaft collars and pistons use low-friction materials for smooth movement. Suspension customization: you can remove the stock torsion bars to use without them, or use them together with the torsion bars for a stiffer setup. 【Specifications】 Overall eye-to-eye length: 51mm (extended) / 43mm (compressed) Joint type: Ball end Spring specs: Wire diameter 1.0mm - Length 30mm - 7 turns Oil: #350 (CPS) Oil sealing structure: Top oil seal (diaphragm/airbag) type Shock body outer diameter: 9mm Spring outer diameter: 14mm Country of origin: Taiwan 【Contents】 Front shocks × 2 M3 x 14mm hex screws × 4 M3 lock nuts × 4 【Compatible models】 XR311 Combat Buggy