Size at a glance
| ETRTO / ISO | 25-584 |
|---|---|
| Metric / French | 650x25B |
| Imperial (calculated) | 27.5 x 0.98 |
| Tire width | 25 mm (0.98 in) |
| Rim bead seat diameter | 584 mm |
| Common wheel name | 650B / 27.5-inch |
ETRTO is the only tire size standard that describes a real, measurable dimension, which is why it is the one worth trusting. Read 25-584 as “25 mm wide, on a 584 mm rim”. If the second number matches your rim, the tire fits.
Sidewall markings for this size are not consistent between brands. The same 25-584 tire is also printed as 27.5x1.0, 27.5x1.00 — all of these describe the same rim fit.
All 3 tires in 25-584
3 listings across 3 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 |
|---|---|---|---|---|---|
| Continental | Grand Prix 5000 | Road | 215 g | Black/Black | Details |
| WTB | Frequency Team | — | 527 g | Tubeless | Details |
| WTB | ST | MTB | — | Tubeless | Details |
Search another size in the tool
Close alternatives for a 584 mm rim
These tires have a different width but the same 584 mm bead seat diameter, so they mount on the same wheel. Widths within ±3 mm of 25 mm are shown. Check your frame and fork clearance before going wider.
| Brand | Model | Type | ETRTO | Weight | Build | Link |
|---|---|---|---|---|---|---|
| WTB | Frequency Team | — | 23-584 | 478 g | Tubeless | Details |
| Continental | Grand Prix 5000 | Road | 28-584 | 235 g | Black/Black | Details |
| Schwalbe | PRO One Tubeless | Road | 28-584 | 275 g | Black · Tubeless · E-25 | Details |
Brands making 25-584 tires
Continental, WTB.
Other sizes for 650B / 27.5-inch wheels
Every size below fits the same 584 mm rim.