Wheel Help - I messed up!

[Kevin B]

I got a wheel from the trash someone threw away. The tire was shredded and dry rotted. I threw it away after recording info from the tire on a duct tape note on the wheel that reads 26" x 1 3/8". The problem is when I tried to mount a regular 26" cruiser tire 2.125 on the rim the tire was too small a diameter. Turns out 26" is not the rim but the tire OD, I guess. I'm wondering if anyone would knows what tire I need. Here is the info I have.

(I have photos below)

• Presta valve hole (I'm going to enlarge that for a Schrader valve)
• Diamond logo on the hub it may read WECO or WBCO even 1800 it is really faint.
• Taller wall (lip) with a step.
• Axle is smaller like 5/16" instead of 3/8" and has a keyway in it.

 

[Wildcat]

26 x 1 3/8ths is the size. 590. Used for many years on lightweight bikes.
It's a greater diameter than the 2.125 and other decimal sizes. There is another 26" tire that wont work, the Schwinn S-7.
Here's how it should be labeled.

 

[Kevin B]

Thank you so much. When I transferred the info from the old tire I didn't know to include 590.

 

[RustyGold]

Rule of thumb is, fractional tires don't mix with decimal sizes. So it's one case where 1.75" does not equal 1 3/4". Take a read of Sheldon Brown's tire size article and you should have a good grasp on it.

Sheldon Brown tire sizing

 

[Kevin B]

Thanks. One thing about RRB, everyone here is very helpful and willing to teach.

 

[bunnyman666]

Rule of thumb is, fractional tires don't mix with decimal sizes. So it's one case where 1.75" does not equal 1 3/4". Take a read of Sheldon Brown's tire size article and you should have a good grasp on it.

Sheldon Brown tire sizing

Sheldon’ site is a bible!