This version of the CeramicSpeed OSPW is perfectly suited for road, gravel and cyclocross riding as it offers durable, reliable and ultra-efficient performance. Ready to dominate across mixed terrains, this brilliant model is specifically developed to withstand the rigours of a long day in the saddle from the smooth city streets to the rocky forest trails. 12 Speed Pulley Wheel System Ready for action, these hand-built bearings sit within a pair of oversized pulleys which are fitted with a custom-designed and carbon-reinforced PA cage. This makes them more than capable of handling the toughest of riding conditions while giving you phenomenal power and control. Accommodating a 10 to 33T cassette range, the CeramicSpeed OSPW SRAM version enables a customised set-up with two spring tensions to suit varying riding conditions. This is the ultimate choice of upgrade for riders who want unparalleled performance and reliability from one of the most efficient components on the market. Since its introduction, the CeramicSpeed Oversized Pulley Wheel System has been through 13 unique derailleur compatibility developments. No other pulley system has the depth of use and trust as the CeramicSpeed OSPW, which counts both Men’s and Women’s Triathlon World Champions, World Tour professional road teams, XCO professional MTB Teams, and elite athletes worldwide as its users. Please Note: While there are visual similarities with the SRAM RED/Force AXS derailleurs, this OSPW system is not compatible with the SRAM Rival AXS, or SRAM RED, Force, or Rival XPLR eTap AXS rear derailleurs. IMPORTANT: When travelling, please remember to dismount your entire rear derailleur with an Allen key, as the OSPW System will not fit in most bike travel bags and could be damaged if left on.