Your inner rim width determines which tires will fit your bicycle as well as which locking pins you will need for a proper fit. How to measure
• Remove your old tire
• Use a ruler or caliper tool to measure - see image
• Once you have the correct measurement, you can find the correct tire
| DIAMETER | WIDTHS | INNER RIM WIDTH | ETRTO | HARDNESS | PSI | WEIGHT(g) |
|---|---|---|---|---|---|---|
| 16" | 1.25 | 17-20mm | (32-349) | Regular | 90 | 310 |
| 16" | 1.5 | 19-21mm | (40-305) | Regular | 80 | 440 |
| 20" | 1.25 | 17-20mm | (32-406) | Regular | 90 | 360 |
| 20" | 1.5 | 19-21mm | (40-406) | Regular | 85/80/75 | 570 |
| 20" | 1 1/8 | 13-16mm | (28-451) | Regular | 100 | 380 |
| 24" | 1.5 | 19-21mm | (40-540) | Regular | 80 | 590 |
| 24" | 1.75 | 17-20mm | (44-507) | Regular | 80 | 670 |
| 26" | 1.75 | 17-20mm | (44-559) | Regular | 85/80/75 | 800 |
| 26" | 1 3/8 | 18-20mm | (35-590) | Regular | 80 | 620 |
| 27" | 1.25 | 18-20mm | (32-630) | Regular | 80 | 650 |
| 27" | 1.5 | 19-21mm | (40-630) | Regular | 80 | 730 |
| 700 | 23C | 13-15mm | (23-622) | H/R/S | Black only | 115/105/95 | 370 |
| 700 | 25C | 16-18mm | (25-622) | H/R | Black only | 110/100 | 434 |
| 700 | 28C | 14-16mm | (28-622) | H/R/S | Black only | 105/100/95 | 460 |
| 700 | 28C | 18-20mm | (28-622) | H/R | 110/100 | 496 |
| 700 | 32C | 18-20mm | (32-622) | Regular | 80 | 650 |
| 700 | 40C | 19-21mm | (40-622) | Regular | 80 | 730 |