Travel: 50mm System: Brass bushing parallelogram system 25mm setback Oouter diameter: 31.6mm Length: 400mm Suspension system: Internal coil w preload adjust Arm material: Alloy Target category: All road-sport MTB For 7mm saddle rails Weight: 864g Color: Silver (as pic. shown) OEM package (This item is exactly as pictured and does not include retail package) Contents : 1 pc ack