Image: manufacturer · Source
Specialized
Tested
Weaker in comparison
50.1 W · rank 4 of 4 comparable Trail tires
21.9 W behind the best value in the same test series. Fewer watts is better – every watt saved stays in the drivetrain.
Width, casing, compound and pressure – every value on this page follows your pick.
Width, casing and compound decide how a tire really rides. We only show what was actually measured – and label estimates honestly.
Reference: documented test pressure of the source (24.7 psi (1.70 bar)).
More pressure: less rolling resistance, less grip, less comfort. Tougher casing: more protection, more weight. Softer compound: more grip, more rolling resistance.
Modelled values are assumptions based on the stated measurement points – not a lab test.
Editorial assessment on a 1–10 scale. Grip index: –
No editorial scores
There are no 1–10 scores for this tire yet. We do not invent values.
Laboratory measurements are available – see the measurements block.
How we rateNo data
There are no 1–10 scores for this tire yet. We do not invent values.
Every variant the manufacturer lists, with its own claimed data. Missing values stay blank.
| 27.5" | 2.4" | GRID | T7 | 870 g | ||
| 27.5" | 2.4" | GRID TRAIL(Trail) | T7 | 915 g | ||
| 29" | 2.4" | GRID | T7 | 925 g | ||
| 29" | 2.4" | GRID TRAIL(Trail) | T7 | 980 g | ||
| 29" | 2.4" | GRID TRAIL(Trail) | T9 | 1050 g |
The value in brackets is our brand-neutral casing class (Light, Trail, Enduro, Downhill) – not a manufacturer statement.
Real test-rig values – not an estimate. Tested variant: Purgatory T9 Grid Trail 29 x 2.40.
Watts measured on the test rig: lower is better. The 1-10 ratings on this page: higher is better.
No lab of our own: measurements come from the third-party test named above – the source is linked directly.
Rank 4 of 4 · lower is better
Rank 5 of 5 · higher is better
Best value · Rank 1 of 5 · lower is better
Tested: Calculated from the stored measurements – compared only within the same test series and category (Trail).
Weaker in comparison
50.1 W · rank 4 of 4 comparable Trail tires
21.9 W behind the best value in the same test series. Fewer watts is better – every watt saved stays in the drivetrain.
Weaker in comparison
21.2 % · rank 5 of 5 comparable Trail tires
54.9 % behind the best value in the same test series. A higher percentage is better – the tire cushions hard edges for longer.
Strong in comparison
1,042 g · rank 1 of 5 comparable Trail tires
Best value in this test series. Fewer grams is better, but usually costs casing stability.
In this test series the tire is below average for both rolling resistance and impact protection – other models do both better.
Measurements from different test rigs are not directly comparable – Sources & method.
Our own summaries – the full test is available at the source.
BIKE Magazin
October 2012In BIKE's large comparison test of 16 mountain bike tires, the Specialized Purgatory S-Works also competed in the All Mountain category. It impressed with a balanced mix of rolling resistance, grip and weight. This made it one of the recommended models for versatile trail use.
To the source
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