Finding the right 26x1 3/8 tire
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Finding the right 26x1 3/8 tire
My son picked up an Iverson Grand Sport 10 Speed and has been riding it around at his college. It's basically in OK shape with some needed upgrades (brake pads etc) so I've been helping him fix it up. He managed to puncture a tire thanks to a piece of glass on the road, but now I find I'm not sure what kind of tires to get. They're 26 x 1 3/8, but I gather there are several different tires with that size that might not be compatible? I was hoping I could get a manufacturer or part number but there is nothing, at least nothing legible. What we have is:
Made in Indonesia
The special high pressure tyre
Nylon
26 x 1 3/8
Inflate to 75-85 PSI
Can anyone suggest what might be good replacement tires? Or give me some pointers for what I could look for that would give me better information to make a choice?
Made in Indonesia
The special high pressure tyre
Nylon
26 x 1 3/8
Inflate to 75-85 PSI
Can anyone suggest what might be good replacement tires? Or give me some pointers for what I could look for that would give me better information to make a choice?
#2
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Look for a ERTO (ISO) # on the sidewall, should be something like 37-590. 26 X 1 3/8 are usually 590 BSD (bead seat diameter)
Shop by using 26 x 1 3/8 590
Harder to find one that is "high pressure" most are 50-65 psi
https://www.sheldonbrown.com/tire-sizing.html
https://www.sheldonbrown.com/26.html
Shop by using 26 x 1 3/8 590
Harder to find one that is "high pressure" most are 50-65 psi
https://www.sheldonbrown.com/tire-sizing.html
https://www.sheldonbrown.com/26.html
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If he flatted just replace the tube...is the tire so damaged it can't be used anymore?
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Look for a ERTO (ISO) # on the sidewall, should be something like 37-590. 26 X 1 3/8 are usually 590 BSD (bead seat diameter)
Shop by using 26 x 1 3/8 590
Harder to find one that is "high pressure" most are 50-65 psi
https://www.sheldonbrown.com/tire-sizing.html
https://www.sheldonbrown.com/26.html
Shop by using 26 x 1 3/8 590
Harder to find one that is "high pressure" most are 50-65 psi
https://www.sheldonbrown.com/tire-sizing.html
https://www.sheldonbrown.com/26.html
Given the age of the bike, it might be pre-ISO/ERTO.
You measure the diameter at the hook-ridge if there are no standard markings on the side.
26 x 1 3/8 also appears on the 571, bead-I have one on a recumbent and it is fairly common with recumbents-though I suspect OP has a 590-597 bead.
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If you're lucky the ISO-ERTO might be listed on the rim or if you know the rim brand and model you may be able to find it with a search.
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Given the age of the bike, it might be pre-ISO/ERTO.
You measure the diameter at the hook-ridge if there are no standard markings on the side.
26 x 1 3/8 also appears on the 571, bead-I have one on a recumbent and it is fairly common with recumbents-though I suspect OP has a 590-597 bead.
You measure the diameter at the hook-ridge if there are no standard markings on the side.
26 x 1 3/8 also appears on the 571, bead-I have one on a recumbent and it is fairly common with recumbents-though I suspect OP has a 590-597 bead.
Though that's rare. I can't think of any time I didn't find the ETRTO or some corruption of it stamped or embossed in the very tiny print on the tire sidewall. But I certainly can't swear to it.
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ETRTO was around long before that bike was made in the 70's. I might agree that if the tires are original, then they may not have the ISO/ETRTO number stamped on them.
Though that's rare. I can't think of any time I didn't find the ETRTO or some corruption of it stamped or embossed in the very tiny print on the tire sidewall. But I certainly can't swear to it.
Though that's rare. I can't think of any time I didn't find the ETRTO or some corruption of it stamped or embossed in the very tiny print on the tire sidewall. But I certainly can't swear to it.
I have a 78 Raleigh Super Grand Prix that does.
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Find a tire that looks exactly the same and make sure the ISO number matches up assuming there is one. You might even take it to the local shop and see if they can confirm sizing. 26 1x3/8 is a miserable bunch of sizes
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Just measure the bead diameter. Convert it to mm. It will give you what you need.
John
John
#10
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When folks tell you different sizes might not be compatible most likely they are referring to fractional vs decimal. A tire with the width labeled as fractional, i.e. 1 1/4, has a different diameter than a tire labeled as decimal, i.e. 1.25. Seems crazy I know because you can put a different width tire on the same wheel assuming there is room between the forks. So you can go with 26 x 1 1/2 or 26 x 1 1/4 on your wheel instead of the 26 x 1 3/8. But if you use a tire labeled as 26 x 1.5 or 26 x 1.25 it won’t fit.
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Bontrager T1 max pressure 120psi.
Specialized RoadSport max pressure 90psi
For a real bang, mount these on a rim without a hooked bead.
Last edited by tcs; 06-15-21 at 06:37 AM.
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Okay, COVID bike boom. Everybody's sold out of everything.
Great ISO37x590mm (a.k.a. 26 x 1 3/8 a.k.a EA3 a.k.a. 650A <--all samesame) tires:
Continental City Ride II (AFAIK they only make a run of these every few years.)
Panaracer Col de Vie
Schwalbe Delta Cruiser
Schwalbe Marathon
At your local Walmart or Target you can find (when they're in stock) either:
Bell Sports Flat Defense (folding)
Goodyear Road (folding)
Highly recommend these folding tires only be mounted on hook bead rims!
Great ISO37x590mm (a.k.a. 26 x 1 3/8 a.k.a EA3 a.k.a. 650A <--all samesame) tires:
Continental City Ride II (AFAIK they only make a run of these every few years.)
Panaracer Col de Vie
Schwalbe Delta Cruiser
Schwalbe Marathon
At your local Walmart or Target you can find (when they're in stock) either:
Bell Sports Flat Defense (folding)
Goodyear Road (folding)
Highly recommend these folding tires only be mounted on hook bead rims!
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When folks tell you different sizes might not be compatible most likely they are referring to fractional vs decimal. A tire with the width labeled as fractional, i.e. 1 1/4, has a different diameter than a tire labeled as decimal, i.e. 1.25. Seems crazy I know because you can put a different width tire on the same wheel assuming there is room between the forks. So you can go with 26 x 1 1/2 or 26 x 1 1/4 on your wheel instead of the 26 x 1 3/8. But if you use a tire labeled as 26 x 1.5 or 26 x 1.25 it won’t fit.
https://www.sheldonbrown.com/tire-sizing.html
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I recently purchased a 26" rear wheel for my Raleigh Mountain Bike, that I have owned for 30+ years.
'Normal' size 26" Tyre's (599) fit my Bike Wheels. This recent 26" (without a Tyre) wheel purchase has too big a diameter, making it a bigger wheel (slightly).
I inquired into the seller what the correct size of this 26" wheel was, and they mentioned it was 26 x 1.3/8. The 1.3/8 dimension was not provided originally.
Bikefactorywhaleybridge on Ebay have informed me that 26" x 1.3/8 wheels are bigger that the normal 26".
Ordered a Tyre and inner tube from them.
'Normal' size 26" Tyre's (599) fit my Bike Wheels. This recent 26" (without a Tyre) wheel purchase has too big a diameter, making it a bigger wheel (slightly).
I inquired into the seller what the correct size of this 26" wheel was, and they mentioned it was 26 x 1.3/8. The 1.3/8 dimension was not provided originally.
Bikefactorywhaleybridge on Ebay have informed me that 26" x 1.3/8 wheels are bigger that the normal 26".
Ordered a Tyre and inner tube from them.
#15
Really Old Senior Member
I recently purchased a 26" rear wheel for my Raleigh Mountain Bike, that I have owned for 30+ years.
'Normal' size 26" Tyre's (599) fit my Bike Wheels. This recent 26" (without a Tyre) wheel purchase has too big a diameter, making it a bigger wheel (slightly).
I inquired into the seller what the correct size of this 26" wheel was, and they mentioned it was 26 x 1.3/8. The 1.3/8 dimension was not provided originally.
Bikefactorywhaleybridge on Ebay have informed me that 26" x 1.3/8 wheels are bigger that the normal 26".
Ordered a Tyre and inner tube from them.
'Normal' size 26" Tyre's (599) fit my Bike Wheels. This recent 26" (without a Tyre) wheel purchase has too big a diameter, making it a bigger wheel (slightly).
I inquired into the seller what the correct size of this 26" wheel was, and they mentioned it was 26 x 1.3/8. The 1.3/8 dimension was not provided originally.
Bikefactorywhaleybridge on Ebay have informed me that 26" x 1.3/8 wheels are bigger that the normal 26".
Ordered a Tyre and inner tube from them.
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I recently purchased a 26" rear wheel for my Raleigh Mountain Bike, that I have owned for 30+ years.
'Normal' size 26" Tyre's (599) fit my Bike Wheels. This recent 26" (without a Tyre) wheel purchase has too big a diameter, making it a bigger wheel (slightly).
I inquired into the seller what the correct size of this 26" wheel was, and they mentioned it was 26 x 1.3/8. The 1.3/8 dimension was not provided originally.
Bikefactorywhaleybridge on Ebay have informed me that 26" x 1.3/8 wheels are bigger that the normal 26".
Ordered a Tyre and inner tube from them.
'Normal' size 26" Tyre's (599) fit my Bike Wheels. This recent 26" (without a Tyre) wheel purchase has too big a diameter, making it a bigger wheel (slightly).
I inquired into the seller what the correct size of this 26" wheel was, and they mentioned it was 26 x 1.3/8. The 1.3/8 dimension was not provided originally.
Bikefactorywhaleybridge on Ebay have informed me that 26" x 1.3/8 wheels are bigger that the normal 26".
Ordered a Tyre and inner tube from them.
If that's your tire and rim's BSD, then you must have a very old bike. More common BSD's for tires calling them 26" is 559, usually on mountain bikes, along with 597, 590, 584 and 571... maybe some others.
So when you look for 26" tires (tyres) take time to look for the ISO/ETRTO size that is also stamped or embossed on them in very tiny letters. Then you'll know if they fit your rim. If they aren't in the spec's on the website you are buying from, then call or take a look at the actual tire manufacturers site and see what BSD sizes they make that particular tire in.