Bicycle Tire Crib Sheet
From WikiPedalia
Original article: https://www.sheldonbrown.com/cribsheet-tires.html on sheldonbrown.com
- Reproduced with the permission of John Allen and Harriet Fell — all rights reserved. The version on sheldonbrown.com is authoritative.
- Mirrored: 2026-09-23 · Last update of the original: see original
German translation: Übersicht Reifengrößen (Tabelle) on wikipedalia.com
| 12 1/2 x Anything | 203 ISO | Juvenile, scooters | |
| 16 x Decimal | 305 ISO | Juvenile, BOB Trailers, some folders | |
| 16 x Fraction | 349 ISO | Folders, older Moulton | |
| 17 x Fraction | 369 ISO | Alex Moulton | |
| 18 x Decimal | 355 ISO | Birdy Folders | |
| 20 x Decimal | 406 ISO | Common BMX size, Trailers, recumbents | Commonly Confused Sizes! |
| 20 x Fraction | 451 ISO | Bike Friday, some recumbents | |
| 22 x 1 3/8" | 490 ISO | French 550A old French folders | |
| 24 x Decimal | 507 ISO | Juvenile MTBs | |
| 24 x 1, 1 1/8" | 520 ISO | Modern Terry Front | |
| 24 x 1 1/8" 24 x 1 1/4" 24 x 1 3/8" |
540 ISO 541 ISO |
Older Terry, Juvenile, French | Commonly Confused Sizes! |
| 24 x 1 3/8 S-* | 547 ISO | Schwinn Size | |
| 26 x Decimal | 559 ISO | MTBs, Cruisers, Fatbikes | |
| 26 x 1 3/8" E.A.3 | 590 ISO | 650A English 3-speeds, others | Commonly Confused Sizes! |
| 26 x 1 3/8 S-6 | 597 ISO | Schwinn Size, also English 26 x 1 1/4" | |
| 26 x 1 1/2" | 584 ISO | 650B | |
| 26 x 1 3/4" S-7 | 571 ISO | Schwinn Size - wide. | |
| 26 x other fraction | 571 ISO | 650C triathlon, time trial - narrow. | |
| 27 x anything | 630 ISO | Older derailleur-equipped bicycles | |
| 27.5 x anything | 584 ISO | Marketing name for wide 650B: MTBs. | |
| 28 x 1 1/2" | 635 ISO | 700B, English/Chinese/Indian rod-brake roadsters | Commonly Confused Sizes! |
| 28 x any other fraction | 622 ISO | 700C-"28 inch" designation is used in Germany and northern Europe |
The more common sizes are shown with a white background, the less common varieties are shown with a gray brackground.
This page is intended as a quick reference primarily for the benefit of folks in the bicycle business. Feel free to print it out, but please don't reproduce it without proper credit and linkage.
For more detailed information, see my Article on Tire Sizing
