Size at a glance
| ETRTO / ISO | 37-590 |
|---|---|
| Metric / French | 650x37A |
| Imperial (calculated) | — |
| Tire width | 37 mm (1.46 in) |
| Rim bead seat diameter | 590 mm |
| Common wheel name | — |
ETRTO is the only tire size standard that describes a real, measurable dimension, which is why it is the one worth trusting. Read 37-590 as “37 mm wide, on a 590 mm rim”. If the second number matches your rim, the tire fits.
Sidewall markings for this size are not consistent between brands. The same 37-590 tire is also printed as 26x1 3/8 — all of these describe the same rim fit.
All 2 tires in 37-590
2 listings across 2 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 |
|---|---|---|---|---|---|
| Schwalbe | Delta Cruiser Plus | Trekking/City | 710 g | Whitewall+Reflex · E-25 | Details |
| Schwalbe | Marathon Plus | Trekking/City | 850 g | Black+Reflex · E-50 | Details |
Search another size in the tool
Brands making 37-590 tires
Schwalbe.
Other sizes for 590 mm wheels
Every size below fits the same 590 mm rim.