Curious if your belt part # is 417-300-166 or 417-300-288.
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Same problem here no more adjustment, so I'm going to try a Ultimax XS. I've heard good things about them........166. Worn past adjustment for correct deflection. 210 miles.
The race belt is a 253, and that's what I've been running all year so far. 0 problems in 108 miles. Belt still looks brand new.
What's the diff from the race belt (253) vs the 166 belt?