Size at a glance
| ETRTO / ISO | 55-507 |
|---|---|
| Metric / French | — |
| Imperial (calculated) | 24 x 2.17 |
| Tire width | 55 mm (2.17 in) |
| Rim bead seat diameter | 507 mm |
| Common wheel name | 24-inch |
ETRTO is the only tire size standard that describes a real, measurable dimension, which is why it is the one worth trusting. Read 55-507 as “55 mm wide, on a 507 mm rim”. If the second number matches your rim, the tire fits.
Sidewall markings for this size are not consistent between brands. The same 55-507 tire is also printed as 24x2.20, 24x2.50 — all of these describe the same rim fit.
All 4 tires in 55-507
6 listings across 4 models, sorted by brand and weight. Where one model appears more than once, those are genuinely different products — a different casing, colour or claimed weight.
| Brand | Model | Type | Weight | Build | Link |
|---|---|---|---|---|---|
| Maxxis | High Roller | MTB | — | Black | Details |
| Michelin | City Cargo Competition Line | Trekking/City | 1100 g | Black · E-50 | Details |
| Schwalbe | Motion Big Apple | Trekking/City | — | Black+Reflex · E-25 | Details |
| Schwalbe | Motion Big Apple | Trekking/City | — | Brown+Reflex · E-25 | Details |
| Schwalbe | Motion Big Apple | Trekking/City | — | Creme+Reflex · E-25 | Details |
| Schwalbe | Motion Super Moto-X | Trekking/City | 835 g | DD, GreenGuard · Black+Reflex · E-50 | Details |
Search another size in the tool
Close alternatives for a 507 mm rim
These tires have a different width but the same 507 mm bead seat diameter, so they mount on the same wheel. Widths within ±3 mm of 55 mm are shown. Check your frame and fork clearance before going wider.
| Brand | Model | Type | ETRTO | Weight | Build | Link |
|---|---|---|---|---|---|---|
| Maxxis | Rekon | MTB | 56-507 | 603 g | Dual · Black | Details |
| Schwalbe | Rocket Ron | MTB | 54-507 | 435 g | Performance, ADDIX · Black | Details |
| Schwalbe | Smart Sam | MTB | 54-507 | 570 g | Black · E-50 | Details |
| Schwalbe | Smart Sam | MTB | 54-507 | 570 g | Performance · Black · E-50 | Details |
| Maxxis | Minion DHR II | MTB | 58-507 | 682 g | 60TPI, Foldable, DUAL · Black · Tubeless | Details |
| Maxxis | Minion DHR II | MTB | 58-507 | 759 g | 60TPI, Foldable, DUAL, EXO/TR · Black · Tubeless | Details |
Brands making 55-507 tires
Maxxis, Michelin, Schwalbe.
Other sizes for 24-inch wheels
Every size below fits the same 507 mm rim.