- Pack of 12

The AP Racing designed 'float in the bell' system has the advantage of being used with standard bolted discs, float is controlled by bell thickness. During use, some wear of the bell inevitable occurs which tends to increase float and requires more frequent bell replacement that the float in the disc system.

**Recommended bell flange thickness for use with this bobbin is 8.00/8.0 to give 0.15/0.25mm float.