#61
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Just don't get it.. For the OP..pretty sure the 'guide' was a help in using these 'new' type rims w/o having a blowout or something...Not a pitch for hookless... Seems odd tho than the wheel and bike 'big boys' would jump onto this bandwagon w/o decent new customer training of the many pitfalls of hookless...Gotta have their lawyers squirming some.
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Chisholm's Custom Wheels Qui Si Parla Campagnolo |
#62
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So familiar to anyone who does any kind of engineering. Make it cheaper/Make it faster is such common management or customer request. "Make this existing thing go much faster" is far and away my favorite thing to do at my particular job. Very rewarding when you get a big result. The "rub" as he says is does your new process lead to the same result? The answer is no here, they have a much better process that leads to a different end result. Of course this is a perennial conversation.. when is it OK to change the end product/result to achieve the cost saving or time saving? Whoever is working on glued/bonded on hooks and such at Zipp/SRAM/wherever will have a huge sense of satisfaction when they nail it and put all these issues to bed. Seems like it will probably be a "meet somewhere in the middle" solution though. Yield will probably be worse and cost higher than hookless, but better than molded in hooks. Last edited by benb; 03-07-2024 at 08:13 AM. |
#63
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Good find! Is this the 2023 ETRTO standard year update?
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#64
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I would be careful with that Mavic chart.
Each page for Tubeless has the UST logo on it. So this is Mavic's recommendations for Mavic rims. Not anyone else's, and UST is hooked AFAICT... have they made a hookless version of UST? Does anyone know what TC and TSS mean on the horizontal axis of those charts with the rim widths? |
#65
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Mavic did release a hookless rim recently, but I think it is meant for gravel use.
TC = tubeless crochet (hooked) TSS = tubeless straight side (hookless) |
#66
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#67
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I've been here the whole time & still have a wealth of no idea why this mess was invented
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#68
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I believe, but can't substantiate since the ETRTO standards are behind some sort of paywall I think, that it follows the standards in terms of compatibility by indicating Yellow vs Gray boxes. The pressures I think they recommend, are based maybe on their own calculated logical progression of how rim width and tire width should impact max psi for every given combination, working backwards from a maximum. But, that's just my guess.
Nothing's perfect though. Someone could make a hookless tubeless tire with wire beads (non-foldable) perhaps, and claim a completely different ability to hold air at higher pressures (mounting them might be a pain perhaps :-). |
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