Never come across a 27 x 1 3/8?
Can I replace 37-622 tires with 28-622?
Re: Can I replace 37-622 tires with 28-622?
Re: Can I replace 37-622 tires with 28-622?
The ISO sizing (622, 584, 559, etc) will give you something that will fit the rim but how big a tyre is once fitted can be very variable. I have 3 sets of tyres that I run on my 23mm wide (internally) rims. Schwalbe snow studs, Vittoria Voyager Hypers & WTB Nano 40s. All are marked 40-622 but they are different enough to see the difference purely by sight, no need to measure - the snow studs are smallest, the Hypers in the middle & the Nanos the biggest.
The Voyagers on Mrs H's bike are noticeably smaller as she has 19mm wide rims. If you assume the tyre cross section to approximate to being a circle, you've effectively lopped 4mm off the circumference of that circle.
In terms of performance, I don't seem to have lost any speed on the bike running the Voyagers compared to 28mn Continental Grand Prix 4 Seasons I had on the previous bike. But I have gained a lot of comfort on today's moonscape road surfaces due to being able to run 35 to 40 psi tyre pressures.
The Voyagers on Mrs H's bike are noticeably smaller as she has 19mm wide rims. If you assume the tyre cross section to approximate to being a circle, you've effectively lopped 4mm off the circumference of that circle.
In terms of performance, I don't seem to have lost any speed on the bike running the Voyagers compared to 28mn Continental Grand Prix 4 Seasons I had on the previous bike. But I have gained a lot of comfort on today's moonscape road surfaces due to being able to run 35 to 40 psi tyre pressures.
Former member of the Cult of the Polystyrene Head Carbuncle.
Re: Can I replace 37-622 tires with 28-622?
Chris Jeggo wrote: ↑8 Sep 2021, 11:44pmOthers have answered the OP regarding tyre width suitability vs rim width. Replacing 37mm tyres with 28mm tyres will also reduce ground clearance by 9mm (3/8") which might matter when pedalling round corners or riding off-road (in a rut?).
Schwalbe list external dimensions for their widest tyres. (In addition to rim diameter and rim width compatibility and estimated rolling circumference for all tyres.)RickH wrote: ↑9 Sep 2021, 8:11pm The ISO sizing (622, 584, 559, etc) will give you something that will fit the rim but how big a tyre is once fitted can be very variable. I have 3 sets of tyres that I run on my 23mm wide (internally) rims. Schwalbe snow studs, Vittoria Voyager Hypers & WTB Nano 40s. All are marked 40-622 but they are different enough to see the difference purely by sight, no need to measure - the snow studs are smallest, the Hypers in the middle & the Nanos the biggest.
The Voyagers on Mrs H's bike are noticeably smaller as she has 19mm wide rims. If you assume the tyre cross section to approximate to being a circle, you've effectively lopped 4mm off the circumference of that circle.
https://www.schwalbe.com/en/reifenmasse
Jonathan
Re: Can I replace 37-622 tires with 28-622?
After replying very politely to the above and wading through what followed, I bet MsMellie now wishes they'd never posted in the first place.
ARE YOU STILL THERE?
Re: Can I replace 37-622 tires with 28-622?
How much time should I waste trying to help people who ask for help and then can't be bothered to return to their thread ?
No reply from the OP here viewtopic.php?f=1&t=147763&p=1637218#p1637218
Or here viewtopic.php?f=5&t=147685&p=1636012#p1636012
here the OP has returned to the thread, but made no answer to me viewtopic.php?f=5&t=147240&p=1635759#p1635759
Here they returned a couple of times, but left us hanging viewtopic.php?f=5&t=147648&p=1635320#p1635320
This one also leaves me feeling "why did I bother?" viewtopic.php?f=5&t=147644
Hopefully, you get the picture.
Getting back to the current thread, it started at 3.12 with a "very urgent matter"
By 5.36, there were 10 replies. Not from 10 different people, but 10 replies none the less. And no response from the OP.
Of those replies, one was a fairly harmless misapprehension of the width marking on the rim, but the other was the first shot in a trail of destruction which continued until about page 4.
If the OP had not returned to the thread, my plan was simple; I wouldn't bother to carry on contributing.
Bike fitting D.I.Y. .....http://wheel-easy.org.uk/wp-content/uploads/bike-set-up-2017a.pdf
Tracks in the Dales etc...http://www.flickr.com/photos/52358536@N06/collections/
Tracks in the Dales etc...http://www.flickr.com/photos/52358536@N06/collections/
Re: Can I replace 37-622 tires with 28-622?
The first post was at 7 Sep 2021, 3:12pm.
The OP responded at 7 Sep 2021, 6:36pm
Then at 7 Sep 2021, 6:46pm
Then at 8 Sep 2021, 7:39pm
This doesn't look anything like "fire and forget".
Jonathan
The OP responded at 7 Sep 2021, 6:36pm
Then at 7 Sep 2021, 6:46pm
Then at 8 Sep 2021, 7:39pm
This doesn't look anything like "fire and forget".
Jonathan
Last edited by Jdsk on 10 Sep 2021, 10:34pm, edited 1 time in total.
Re: Can I replace 37-622 tires with 28-622?
I'm afraid it's the nature of the internet It's only been 3 days since this started. Some people don't even check their email that often, let alone a cycling forum.531colin wrote: ↑10 Sep 2021, 6:08pm
How much time should I waste trying to help people who ask for help and then can't be bothered to return to their thread ?
No reply from the OP here viewtopic.php?f=1&t=147763&p=1637218#p1637218
Or here viewtopic.php?f=5&t=147685&p=1636012#p1636012
here the OP has returned to the thread, but made no answer to me viewtopic.php?f=5&t=147240&p=1635759#p1635759
Here they returned a couple of times, but left us hanging viewtopic.php?f=5&t=147648&p=1635320#p1635320
This one also leaves me feeling "why did I bother?" viewtopic.php?f=5&t=147644
Hopefully, you get the picture.
Getting back to the current thread, it started at 3.12 with a "very urgent matter"
By 5.36, there were 10 replies. Not from 10 different people, but 10 replies none the less. And no response from the OP.
Of those replies, one was a fairly harmless misapprehension of the width marking on the rim, but the other was the first shot in a trail of destruction which continued until about page 4.
If the OP had not returned to the thread, my plan was simple; I wouldn't bother to carry on contributing.
Perhaps the OP got their answer & couldn't be bothered to follow all the sidetrack discussions? Or perhaps, having sorted it, are occupied with other things? Or perhaps, they'll be along at the weekend to say thanks? I don't think it's something to be bothered about, anyway.
“In some ways, it is easier to be a dissident, for then one is without responsibility.”
― Nelson Mandela, Long Walk to Freedom
― Nelson Mandela, Long Walk to Freedom
Re: Can I replace 37-622 tires with 28-622?
Sorry, but I don't have the second sight.
To me, it looked just like a "fire and forget" right up until the OP got back.
And if it turned out to be a "fire and forget" then I wasn't going to argue with somebody insisting that all sorts of nonsense was actually fact.
Bike fitting D.I.Y. .....http://wheel-easy.org.uk/wp-content/uploads/bike-set-up-2017a.pdf
Tracks in the Dales etc...http://www.flickr.com/photos/52358536@N06/collections/
Tracks in the Dales etc...http://www.flickr.com/photos/52358536@N06/collections/
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Re: Can I replace 37-622 tires with 28-622?
Indeed and other things as well. I had to buy covers and frames for "duct boxes"- the sort you see in pavements with BT/ Post Office Telephones etc on them. Different suppliers specified a slightly different measurement so I was unsure what I needed. It was only when I managed to let a supplier lend me one for a few hours that I realised they all were 3'x18"; each supplier had tried to metricate an imperial measurement and produced a different set of figures.
"It takes a genius to spot the obvious" - my old physics master.
I don't peddle bikes.
I don't peddle bikes.
- kylecycler
- Posts: 1386
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Re: Can I replace 37-622 tires with 28-622?
https://www.ft.com/content/23569cd6-edc ... ffe5ac5f1cUK pledges to restore pounds and ounces as Brexit benefit
Boris Johnson’s government has promised it will legislate to allow British traders to sell their wares in pounds and ounces, rather than grammes and kilos, as it unveiled plans to seek a deregulatory dividend from Brexit.
Let's go back to prehistory - British roadies might soon be riding on 1" tyres (25 mm) or 1.1" (28 mm) - the new retro age beckons!
Re: Can I replace 37-622 tires with 28-622?
I think 28mm will have been a translation of an inch and an eighth.kylecycler wrote: ↑17 Sep 2021, 4:54pm .........Let's go back to prehistory - British roadies might soon be riding on 1" tyres (25 mm) or 1.1" (28 mm) - the new retro age beckons!
If you were designing a real, metric, decimal system, would you have 28 and 32mm tyres?
I don't think so, I think they are translations of inch and eighth and inch and a quarter.
In the same way, why in the name of reason do we have frame tubes measuring 26.8 and 28.6 mm? Or handlebars measuring 31.8mm?
answer....they are translations of sensible imperial fractional measurements.
Tubing, even titanium tubing, is still made in imperial (fractional) sizes, which we then translate into daft metric numbers.
Bike fitting D.I.Y. .....http://wheel-easy.org.uk/wp-content/uploads/bike-set-up-2017a.pdf
Tracks in the Dales etc...http://www.flickr.com/photos/52358536@N06/collections/
Tracks in the Dales etc...http://www.flickr.com/photos/52358536@N06/collections/