Middleburn RS8 X Type M15 Self Extracting Cranks Bolt Single

The cleaning and maintenance of a bike chainset is essential to keeping the best possible shifting performance. In addition, standing dirt and grit on the bottom bracket penetrates seals far faster than if it were given a swift clean at the end of a winters day ride.

This simple level of maintenance can never be as comprehensive as it should be without removing your cranks with a crank extract tool – or a pair of Middleburn self-extract bolts.

With our self-extract bolts all that is required is a 8mm allen key – simple. Anti friction washers ensure minimum effort is required.

With the bolt set available in a range of colours they also provide you with the finishing touch to any bike.