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wider inner rim width .. same tire width

1079 Views 50 Replies 9 Participants Last post by  zero7404
is there any info out there that tests pinch protection vs inner rim/tire width ratios ?

edit: any testing or folks with some experience on that …

initial thought is that there’s some ratio or range that still works well for pinch protection, when a wheel inner width is wide and the tire is ‘narrow’ compared to it …

examples:

1.12 ratio - a 28mm tire on a 25mm inner width

1.33 ratio - a 28mm tire on a 21mm inner width
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If someone wants to do that to their car, and they have the money, then that's up to them. As long as it isn't dangerous (which @zero7404 's picture actually is).
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I don't think you understand. That IS what they wanted in the first place.
u’r right, but all that $$$ spent could have ultimately bought them a not too shabby GLE or GLS, brand new

“buy the ___ you want, keep it nice and clean, leave it the f alone …”

thats a lesson i learned from exorbitant spending in my past
If someone wants to do that to their car, and they have the money, then that's up to them. As long as it isn't dangerous (which @zero7404 's picture actually is).
I agree it's their money and their decision. It's also my right to make fun of them for doing something incredibly stupid.
People make fun of us for what we spend on cycling. Perhaps we should make different choices.
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u’r right, but all that $$$ spent could have ultimately bought them a not too shabby GLE or GLS, brand new

“buy the ___ you want, keep it nice and clean, leave it the f alone …”

thats a lesson i learned from exorbitant spending in my past
'You're'. And you definitely don't understand. They don't want a GLE, they want that, stance, or lowered, and tires stretched. It's a thing, trust me. There are lots of people that will never leave a car alone, myself included. For lots of people...you have to make it yours. I would love to have a nice old 510, lowered, built motor, loud ass exhaust, with 13" Shelby Libre wheels.
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Whether your riding a Zipp 202 or a Toy 520, what if you get a pinch flat???? !!!!!!
Whether your you're riding a Zipp 202 or a Toy 520, what if you get a pinch flat???? !!!!!!
You never will learn, will you?
One still would never get a pinch flat if your rim was 2x the tire width. It's that simple!!!!
I had another road bike flat today, just ordered 2 new tubeless, going to give'r another go! .... everything else is slimmed!
One still would never get a pinch flat if your rim was 2x the tire width. It's that simple!!!!
Huh? If this is your idea of stand up comedy, don't give up your day job. 🙄
Huh? If this is your idea of stand up comedy, don't give up your day job. 🙄
Professional hat eater?
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I found this place that makes chocolate covered hats, they are little like cakes! :)
If people want to make fun of me for biking (or the bike I buy), that is their prerogative. I'll have my fun. They can have theirs. How many of us are riding a bike exactly as it came from the factory (You haven't mounted lights, any sort of "bag", bottle cages, different wheelset, tires, or seat, handlebar tassles, etc)?

Besides, those car mods keep a not-insignificant part of the population employed... and out of prison (j/k).
Back to the discussion at hand. My new bike came with a "free" wheelset. I had the bike guy put Continental GP 5000 S TR 30mm on the "free" wheelset. Turns out the specs say a maximum bead width of 25mm, but that free wheelset has a 26mm inner width. I've already ridden a significant distance on them with no issues. Am I courting disaster? The tire looks fine.
Back to the discussion at hand. My new bike came with a "free" wheelset. I had the bike guy put Continental GP 5000 S TR 30mm on the "free" wheelset. Turns out the specs say a maximum bead width of 25mm, but that free wheelset has a 26mm inner width. I've already ridden a significant distance on them with no issues. Am I courting disaster? The tire looks fine.
Uh-Oh
We've gone to plaid.
We've gone to plaid.
this quote is strictly reserved for barf
The Schwalbe tire fit table said a max of 25mm inner rim. I couldn't find anything from Continental. But those tires... da##! Ludicrous speed!
Back to the discussion at hand. My new bike came with a "free" wheelset. I had the bike guy put Continental GP 5000 S TR 30mm on the "free" wheelset. Turns out the specs say a maximum bead width of 25mm, but that free wheelset has a 26mm inner width. I've already ridden a significant distance on them with no issues. Am I courting disaster? The tire looks fine.
don't think that 1mm of extra wheel width will upset the tire … we’re talking about 1/32” … not enough to cause a problem.
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thats an interesting read … noticed how they mentioned the tire/rim shape how aero is affected. to some extent its a good point. but the cross section should be more like a symmetrical airfoil. wonder if some wheelsets are asymmetrical on their center plane … that would cause an air pressure difference between the drive/non-drive halves of the wheel.
the influence of aero is probably more dominant at the 3 o clock position if you’re observing the bike from the drive side.
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