Ohlins TTX2 Air m.2 Rear Shock - Metric, 230mm x 65mm, Twin-Tube Damping Technology, Adjustable Volume Air Spring,The Ohlins TTX2Air m. 2 version rear shock builds on their race proven, robust air sprung shock and is best suited for bikes with more progressive linkage ratios. It has larger positive and negative air chamber volumes, a double can, air spring design with additional control of the air volume spacing. This gives riders greater freedom to adjust the spring curve and easily dial in the exact amount of progression they desire. With upgrades across key