Buying a "Schwinn" tire

[wheelhorseman]

I have a NOS Schwinn coaster brake rim stamped 26 x 1 3/4 S7. Is this the only tire size this rim will accept? I see several Kendas on Ebay. Does the s7 mean anything?

What I am doing is using this rear rim on a beach bike that carries 26 x 2.125s. But thats not an issue if both tires are different.

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[deorman]

S-7 rims will not accept standard decimal sized tires. 1 3/4" S-7 ONLY.

 

[wheelhorseman]

Yes I know but will any other size fit? All I found are 26 x 1 3/4 nothing else. Will that size look funny on a beach cruiser? What was Schwinns "balloon" size?

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[deorman]

Schwinn made S-2 rims for balloon tires which fit standard 2.125" tires. 1 3/4" look about the same as normal middleweights (1.75").

 

[SSG]

One thing to remember is that with bicycle tires, the size marked on the sidewall is the tire size, not the rim size. What this means is that there are half a dozen 26" tire sizes, none of which are compatible with any others since the rim diameters are different. You're stuck with a 26 x 1 3/4 S7 unfortunately. You also need to make sure when buying tires, since sometimes sellers dont understand this and will sell you the wrong tire.

 

[rrtbike]

Search for 26x2x1 3/4
This discussion comes up alot.

 

[deorman]

https://www.biketiresdirect.com/tire-size-chart-article

 

[SSG]

Using the ISO number can be helpful. Each iso number is a different diameter rim. Your standard 26" cruiser/mtb/balloon tire/Schwinn S2 is ISO 559. The Schwinn S7 26X1-3/4 is ISO 571. Schwinn S4 26x1-3/8 and 26x1-1/2 (650b) is ISO 584. Schwinn S5-S6 26x1-1/4x1-3/8 is ISO 597. There was also a 20" S7 and S2, as well as a 27" S6, if things weren't confusing enough.

 

[wheelhorseman]

Thanks evetybody. Heres what I am leaning toward. Cheapest I found free shipping too.

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[KJV]

Search for 26x2x1 3/4
This discussion comes up alot.

These are perfect; have a set on 1959 Hornet.

 

[1oldbikelover]

These are perfect; have a set on 1959 Hornet.

It's a nice tire but tend to have a narrower look than the 26 x 2 x 1 3/4 tire. I have both and like the wider look better.

 

[1oldbikelover]

C

Pics of my 26 X 2x 1 3/4 on top pic and 26 X 1 3/4 on bottom pic lower tire

 

[rrtbike]

CST makes them in the Goodyear tread pattern. Also a plus in my opinion. They look bigger yet. Much like a balloon tire.

 

[KJV]

It's a nice tire but tend to have a narrower look than the 26 x 2 x 1 3/4 tire. I have both and like the wider look better.

I was referring to : 26x 2 x1 3/4.

 

[wheelhorseman]

Here we go. What about this? Got a feeling this is NOT an s7 and wont fit.



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[rrtbike]

That's the one! They also have whitewall. It will fit your S7 rim. I have used these myself. Great tire for S7 wheels. Most bike shops can order these in too.

 

[1oldbikelover]

Same ones I have...great choice!

 

[wheelhorseman]

I ordered the 26 x 2 x 1 3/4 Sunlite whitewall today much cheaper than Ebay from my local Dicks Sporting Goods store.

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