This boot is from another vehicle application that uses a CV joint which is dimensionally identical to the ones on a 7.5" or 8.4" diameter disc brake Mini. Up to now, we could only get a boot as heavy-duty as this one by stocking the very expensive Rover part. However, now we have a quality aftermarket boot kit with a similar spec boot. It is narrower in diameter than the standard boot and made of thicker rubber.
We suggest using a metal clamp such as SSS0265 along with the correct tool (STL0039) for best results.