two different versions -- CNC-machined from long-wearing 7075-T6 aluminum alloy or CNC-machined from chrome-molybdenum. Both types are designed to fit Shimano-compatible cassette hubs and have a 5mm wide inner base, giving a ...

the new Box Three™ Chain Tensioner. With a single hole "lollipop" design, these tensioners reduce weight and help keep your rear wheel locked in place.

sound that really gets us going! The 9 pawl design creates a super quick engagement and also let's people hear you coming. The 3/32" teeth works with a wide range of chains ...

Industries Single Speed Freewheels. It is made of 8620 hardened steel and features an Enduro chromium steel bearing.

be reversed with 1mm of spacing on 1 side and 2.2mm of spacing on the other side providing you with the best chain alignment possible. Features: