Specifically the new Zipp 303xplr wheelset, but what (if any) are the downfalls/dangers of using a tyre that isn’t rated upto the 32mm internal width? Conti race kings have a maximum internal rim width rating of 30.5mm (only found that out last week) and obviously the wheelset is 32mm. I am fully …

[image] Peterreynolds: whats the “danger” of the mismatch of widths Worse case you could burp the tire or the tire could come off the rim during hard cornering.

Fair one, In my non-tech mind I could see that being the case for the rim internal being too narrow (effectively folding the tyre as it deforms) but didn’t think of it as an option for wider rims Cheers

[image] Peterreynolds: I am fully aware that they aren’t on a compatibility list, but whats the “danger” of the mismatch of widths? Just don’t and stick to supported tires. The Zipp wheelset is also hookless, so you have a second reason to stick to a supported tire.

True, as much as I’m a magpie and enjoy shiny things, I won’t. Pinky promise

This is the whole issue with the new wheels, it pretty much forces you to use their tyres as well. Personally, not worth the PITA and “locked down” system.

These types of questions annoy me. You are fishing for someone to say “it’s fine, go ahead and ignore the recommendations”. You know the risks, but you can quantify them. Nobody can. So why even ask?

I wouldn’t say I’m fishing. it’s finding a rationale between why a 40mm tyre (their own xplr) is rated as ok even though it’s been reported to have had multiple documented punctures, and a mountain bike tyre on mountain bike width rims isn’t.

That’s easy: it’s what Zipp has spent $$$$$ testing and found, by whatever criteria they are using, to pass their testing protocol. It doesn’t mean that unlisted tires won’t work, it is only saying what tires Zipp says does work.

I just ordered a new gravel bike building from the frame up. As cool and will “maybe” be the next best thing, too many unknowns and too many reviews with flat issues (tons of thread on the topic). I have no interest being a guinea pig yet. I ultimately landed on a set of Reserve 40/44 GR. They are …

That’s kinda my point, in a round about way. The list isn’t saying about the “only” tyres that are compatible, it’s only saying about currently approved

Extra wide internal width question

Equipment

BCM September 3, 2024, 1:13pm 14

Lots of discussion here. Too many reported issues for me to jump on this wheelset.

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Extra wide internal width question

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