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Tire Sizing

This is the size used on nearly all adult-sized mountain bikes and cruisers. Up until 2013

ISO Size British/USA Size French Size Schwinn Size Common applications
635 28 x 1-1/2 Raleigh Roadster & Tourist w/Rod type brakes.
630 27 x 1, 1-1/8 or 1-1/4 10 & 12 speed road bikes from the 60s, 70s & 80s. 
These also fit Schwinns with 27" wheels.
622 700C, 29er Most Road & Hybrid bikes. Newer Off-road bikes.
European designation is 28 x 1-5/8.
597 26 x 1-3/8, 1-1/4
S5 & S6
Schwinn 3-Speed bikes.
590 26 x 1-3/8, EA-3 Raleigh 3-Speeds, Old Huffy & Sears 3-Speed, and some 10-Speed bikes.
584 26 x 1-1/2, 27.5 650B 26 x 1-1/2 Many recent MTB & Hybrid bikes as "27.5" size. Older French Touring bikes.
Also used to convert 700c bikes to a smaller wheel size.
571 650C narrow 26 x 1-3/4 S7 Time-trial & Triathlon bikes, Old Schwinn Cruisers.
Canadian 26 x 1-1/2 F12.
559 26 x decimal Most Mountain bikes & Cruiser up until 2014. 26x1.5, 26.1.75, 26x1.9, 26x2.0, 26x2.125, etc.
547 24 x 1-1/4 24 x 1-3/8, 1-1/4
S5 & S6
Schwinn juvenile lightweight bikes. Also, some old Fuji road bikes
with a smaller front wheel.
540 24 x 1-3/8 600A Old Huffy & Sears juvenile lightweight bikes.