. The ultimate solution for Shimano and other 104BCD cranks. If you have ever thought about running a 1x setup and wondered how to solve chain retention, this is the answer. The state-of-the-art Narrow-Wide tooth profile holds the chain snug, allowing you to ditch the chain guide Features: Designed in UK, manufactured in Poland Arm x BCD: 4x104mm 7075 Txxx Aluminum. Long-lasting construction! Burly enough for DH Racers and Dirt Jumpers Compatibility: 1×9-/10-/11-/12-Speed (Eagle compatible) or Singlespeed setupsWeight: 37g (32T)/46g (34T)Other products available from BLACK by absoluteBLACKBLACKseries is a sister company of absoluteBLACK Ltd It was formed from a desire to offer a different perspective of absoluteBLACK’s state of the art products. BLACKseries is sold exclusively by Chain Reaction Cycles BLACKseries products use the same raw materials, manufacturing techniques, quality control and teeth profiling as absoluteBLACK Difference is in the overall design “We were able to create more industrial looking products that save considerable amount of CNC machining time, which lead to savings we can pass on to our customers ” says the founder, Marcin Golec Buy BLACK by absoluteBLACK Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.