WTB Trail Boss at a glance
| Brand | WTB |
|---|---|
| Type | MTB |
| Sizes | 8 ETRTO sizes |
| Width range | 54–76 mm |
| Fits rims | 622 mm, 584 mm, 559 mm |
| Weight range | 865–1708 g |
| Tubeless ready | 6 of 8 sizes |
| E-bike rating | E-25 / E-50 |
Whether the WTB Trail Boss fits your bike is decided by one number: the bead seat diameter, the second half of an ETRTO size. This tire is made for 622 mm, 584 mm and 559 mm rims — 700C / 28-inch / 29-inch wheels, 650B / 27.5-inch wheels and 26-inch wheels. If your rim matches, the only remaining question is width, and that is a matter of frame and fork clearance rather than of fit.
WTB Trail Boss sizes
Each size below links to every tire available in it, so you can see what the Trail Boss is competing against before you commit to it.
All 13 listings
13 listings across 8 sizes. Where a size appears more than once, those are genuinely different products — a different casing, colour or claimed weight. The “printed as” column is WTB's own marking for that size, which is what you will find on the sidewall and in most shop listings.
| ETRTO | Printed as | Weight | Build |
|---|---|---|---|
| 54-622 | 29x2.25 | 883 g | TCS Light/Fast Rolling, Dual DNA, SG2 · Tan · Tubeless |
| 54-622 | 29x2.25 | 909 g | TCS Light/Fast Rolling, TriTec, SG2 · Black · Tubeless |
| 54-622 | 29x2.25 | 914 g | Comp 30tpi DNA · Black |
| 60-622 | 29x2.4 | 972 g | TCS Light/Fast Rolling, TriTec, SG2 · Tubeless |
| 60-622 | 29x2.4 | 1224 g | TCS Tough/Fast Rolling, TriTec, E25 · Tubeless · E-25 |
| 60-622 | 29x2.4" | 1708 g | TCS Tough/Fast Rolling, TriTec, SG1, IP+, E50 · Black · Tubeless · E-50 |
| 65-622 | 29x2.6 | 1286 g | TCS Tough/Fast Rolling, TriTec, E25 · Tubeless · E-25 |
| 54-584 | 27.5x2.25 | 891 g | Comp 30tpi DNA · Black |
| 60-584 | 27.5x2.4 | 1156 g | TCS Tough/Fast Rolling, TriTec, E25 · Tubeless · E-25 |
| 60-584 | 27.5x2.4" | 1515 g | TCS Tough/Fast Rolling, TriTec, SG1, IP+, E50 · Black · Tubeless · E-50 |
| 65-584 | 27.5x2.6 | 1197 g | TCS Tough/Fast Rolling, TriTec, E25 · Tubeless · E-25 |
| 76-584 | 27.5x3.0 | 1125 g | TCS Light/Fast Rolling · Tubeless |
| 54-559 | 26x2.25 | 865 g | Comp 30tpi DNA · Black |
Compare all 15 tires in 54-622
How the WTB Trail Boss compares on weight
Each row weighs the lightest listed WTB Trail Boss in that size against the lightest listing of every other model available in the same size. Models are compared once regardless of how many colours they come in, and tires with no published weight are left out of the ranking entirely.
| Size | This tire | Median for the size | Rank |
|---|---|---|---|
| 54-622 | 883 g | 725 g | 12th lightest of 15 |
| 60-622 | 972 g | 890 g | 33rd lightest of 58 |
| 65-622 | 1286 g | 1195 g | 22nd lightest of 37 |
| 54-584 | 891 g | 695 g | 8th lightest of 10 |
| 60-584 | 1156 g | 1045 g | 34th lightest of 48 |
| 65-584 | 1197 g | 1170 g | 23rd lightest of 41 |
| 54-559 | 865 g | 653 g | 13th lightest of 16 |
Specifications here come from WTB's own published data. For compound, casing and pressure detail we do not hold, see the manufacturer's page for the Trail Boss.
WTB Trail Boss questions
What sizes does the WTB Trail Boss come in?
Our database lists the WTB Trail Boss in 8 ETRTO sizes: 54-622, 60-622, 65-622, 54-584, 60-584, 65-584, 76-584, 54-559. That is 13 separate listings once colours and casings are counted.
How much does the WTB Trail Boss weigh?
Manufacturer weights for the WTB Trail Boss run from 865 g to 1708 g depending on size and casing.
Is the WTB Trail Boss tubeless ready?
In part. 6 of the 8 listed sizes of the WTB Trail Boss are marked tubeless ready; the rest are tube-type.
Is the WTB Trail Boss approved for e-bikes?
The manufacturer gives the WTB Trail Boss an e-bike rating of E-25 / E-50. That figure is the assisted speed the tire is approved for, not a speed limit for the bike.
Will the WTB Trail Boss fit my wheels?
It fits 700C / 28-inch / 29-inch wheels, 650B / 27.5-inch wheels and 26-inch wheels. Check the second number of your current tire's ETRTO size — if it matches one of 622, 584 and 559 mm, the WTB Trail Boss mounts on your rim. Width is limited by frame and fork clearance, not by the rim diameter.