Ohlins TXC2 Rear Shock - Metric 165mm x 45mm Twin-Tube Damper Adjustable Volume Air Spring Trunnion Black. Ohlins versatile TXC2 Air shock boasts a full range of stroke options bringing enhanced precision and control to XC bikes with a less progressive linkage. Redefine your performance limits and gain the confidence to take on challenging tracks with the TXC2 Air shock. Specifically designed for bikes with a less progressive linkage the TXC2Air is a versatile shock option that boasts a full range of stroke options compared to the TXC1Air which is optimized for shorter strokes.