Transition's 170 mm 29er with the latest version of Transitions “Giddy Up” suspension platform, with improved small bump sensitivity and mid-stroke support. The Spire's frame has a flip chip at the lower shock mount. There's more adjustment at the head tube, with a ZS56/ZS56 press fit headset, which you can replace with an angleset to change reach or head tube angle. Chainstay length increases on the XL and XXL size frames, from 446 mm on the S, M and L bikes to 452 on the XL and XXL bikes, and there's clearance for a 2.6 tyre. This carbon frame kit includes a ROCKSHOX Vivid Ultimate Air shock and a ZS52/ZS52 headset. High and low geometry options via lower shock mount flip chip. Two chainstay lengths, short on S, M & L and long on XL & XXL. New oversized parallel headtube enabling the use of reach or angle adjustment headsets. Frame protection on chainstay, seat stay and downtube “shuttle guard”. EnduroMAX frame bearings.
