You have to unscrew the silver 'fatter bit' to reveal the threaded bit that goes into the HT lead. If it doesn't come off by hand, use some grips or a vice lightly to unscrew it.
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XT660Z
AltecH Wheels
Wheel building and refurbishment, UK wide
AltecH Designs
XT660 Radiator guards, sprocket guards, luggage racks, DNA air filter covers
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