Sport ISIS M12

With its extra thick axle design, the Trialtech Sport M12 bb is one of the strongest available. Aimed at street riding yet light enough for competition use (just 302g), the Sport M12 features an integrated bearing system that not only saves weight but also allows for much larger diameter ball bearings, a feature that helps improve the strength and durability. External seals keep out dirt and water and help maintain a smooth running drivetrain. Precision machined alloy cups help keep the weight down, an ‘anti creak’ inert in the non drive side cup and pre-applied ‘thread lock’ compound helps to give a secure fit in to your frame.

Another key feature of the Sport M12 bb is use of steel crank stoppers on the axles, something that helps prolong the life of both your cranks and bottom bracket. The Sport M12 bb is designed for 68mm frames and has a 128mm axle, which means it is compatible with almost all front freewheel/crank/bashring combinations, as well as fixed sprockets.

Each bottom bracket is supplied with a pair of crank bolts and can be fitted with most ISIS compatible bottom bracket tools.