Quote:
Originally Posted by Mark McM
From the article, in an interview with a team mechanic:
Is the mechanic saying that that tubeless tires on hookless rims are prone to having their tires come off easily unless an insert is used? If so, then why aren't tubeless tire and hookless rim manufacturers mandating that inserts be used? The mechanic also offered no explanation as to why the insert didn't prevent De Gendt's tire from coming off.
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I think the mechanic probably is misunderstanding the use case .. I dont know the size of the inserts used, my guess might be medium since this internal width (25 on Zipp353) and possibly 28mm tire. The are not designed to increase the hold of the hookless bead. They actually shrink a little under pressure and expand (a little) when that pressure is lost.
They are alot firmer vertically then they are laterally so with enough pressure they are coming off with the tire.