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Burning Question of the Day

Old 10-29-21, 11:36 AM
  #1  
Leisesturm
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Burning Question of the Day

If 32mm @ 80psi is faster than 25mm @ 110psi, is 50mm @ 40psi faster than either one? Asking for a friend ...
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Old 10-29-21, 11:52 AM
  #2  
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Maybe.
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Old 10-29-21, 12:10 PM
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Generic answer #1: It Depends.

Who's riding? Going easy or hard? What surface? How far?

On a smooth surface with a storm coming and half a mile to get home before it hits, the one that's on that bike on that day is probably going to be fastest.
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Old 10-29-21, 12:34 PM
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Hmmm. No, but I know how one could find out.
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Old 10-29-21, 01:38 PM
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The fastest known substance is crap through a goose, or so I've been told.
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Old 10-29-21, 01:43 PM
  #6  
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Originally Posted by RChung View Post
Hmmm. No, but I know how one could find out.
It's not "Ask the opinions of dozens of strangers on the internet", is it?
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Old 10-29-21, 01:44 PM
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Originally Posted by livedarklions View Post
The fastest known substance is crap through a goose, or so I've been told.
Don't think I'd use that for my tires, though.
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Old 10-29-21, 01:55 PM
  #8  
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Originally Posted by genejockey View Post
Don't think I'd use that for my tires, though.

Can't beat the cost per mile, though.

I've had it end up on my tires a couple times.
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Old 10-29-21, 03:22 PM
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If you want to go really fast .... use automobile tires.

Put them on your car.

Put the bike on the back, and hit the gas. But first .... turn on Strava.
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Old 10-29-21, 03:23 PM
  #10  
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Why do people even bother to waste time and complicate cycling by calculating this type of stuff ??
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Old 10-29-21, 03:24 PM
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Assuming everything else is equal ......never mind.
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Old 10-29-21, 04:11 PM
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All of those pressures are too high unless you weigh 275 and can't miss ****.
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Old 10-29-21, 04:20 PM
  #13  
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Originally Posted by livedarklions View Post
The fastest known substance is crap through a goose, or so I've been told.
Perhaps, but misinformation on the internet will leave it in the dust, as it were.
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Old 10-29-21, 04:23 PM
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Originally Posted by Pratt View Post
Perhaps, but misinformation on the internet will leave it in the dust, as it were.
After all, A lie can travel around the world and back again while the truth is lacing up its boots.
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Old 10-29-21, 04:25 PM
  #15  
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I always put the widest tire I can find that fits and doesn't require deflation to remove the wheel. Why? comfort.
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Old 10-29-21, 04:30 PM
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Originally Posted by wolfchild View Post
Why do people even bother to waste time and complicate cycling by calculating this type of stuff ??
Oh, I dunno. I stopped paying attention to cycling tech (but didn't stop riding) in about 2009, when riding with 25mm tires was an admission of defeat in the battle to become a skinny cyclist, and when I started paying attention again, EVERYBODY was running at least 25s, and often 28s or larger at lower pressures, and going at least as fast in considerably greater comfort. Seems like a worthwhile endeavor to me.

Well, maybe not the 40mm tires. That's just silly on reasonable pavement.
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Old 10-29-21, 05:27 PM
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If the SSI (sidewall suppleness index) (TM) (R) is appropriately low (or high, depending on the scale), then clearly yes.
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Old 10-29-21, 05:35 PM
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Best way for him to tell is buy them and ride them. Then he can compare his data for the previous tires against the new tire. I usually take the average of best six out of twelve rides of the same route on each tire and or PSI and compare.

Let us know what his results were.
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Old 10-29-21, 06:28 PM
  #19  
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A member for 16 years and almost 5,000 posts. Asking for a friend? Really? This forum has become nothing but a big troll fest. The OP should be embarrassed what a weak effort.

Last edited by Atlas Shrugged; 10-29-21 at 10:42 PM.
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Old 10-29-21, 09:01 PM
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Originally Posted by Leisesturm View Post
If 32mm @ 80psi is faster than 25mm @ 110psi, is 50mm @ 40psi faster than either one? Asking for a friend ...
I just want to know where the cobs go after they create their cobwebs.

Anybody got an answer?
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Old 10-29-21, 09:05 PM
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Originally Posted by Pratt View Post
Perhaps, but misinformation on the internet will leave it in the dust, as it were.
On the internet it will be picked up by an influencer, be promoted as 'the truth', and become the next big social movement . . . .

. . . . until a tik tok or a meme (or both!) of a cute kitty kat gets posted.
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Old 10-29-21, 09:18 PM
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Originally Posted by skidder View Post
On the internet it will be picked up by an influencer, be promoted as 'the truth', and become the next big social movement . . . .

. . . . until a tik tok or a meme (or both!) of a cute kitty kat gets posted.
All influencers eventually fall to their death.
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Old 10-29-21, 09:26 PM
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When I first saw the title, "Burning Question Of The Day", i thought it might be, "Since I got my new unpadded carbon fiber saddle and lowered my bars 10 cm, I have a burning sensation when I pee. Is that bad?"
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Old 10-29-21, 11:41 PM
  #24  
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Originally Posted by skidder View Post
I just want to know where the cobs go after they create their cobwebs.

Anybody got an answer?
To the home of the guy who put the ram in the ram a lam a ding dong.
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Old 10-29-21, 11:44 PM
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Originally Posted by Atlas Shrugged View Post
A member for 16 years and almost 5,000 posts. Asking for a friend? Really? This forum has become nothing but a big troll fest. The OP should be embarrassed what a weak effort.
He's sad because his genius certification expired.
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