Kenda Double Black
Enduro
Front+Rear
Kenda Double Black vs Specialized Hillbilly
Short answer: Rolling resistance: Kenda Double Black leads with 30.8 W, Specialized Hillbilly trails by 22.7 W.
Specialized Hillbilly
Enduro
Front
Configure your build
Width, casing, compound and pressure – every value on this page follows your pick.
Kenda Double Black
Specialized Hillbilly
Measured value available
How we calculate
Width, casing and compound decide how a tire really rides. We only show what was actually measured – and label estimates honestly.
Kenda Double Black: Reference: test pressure 24.7 psi (1.70 bar).
Specialized Hillbilly: 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.
Size, weight and casing
| Kenda Double Black | Specialized Hillbilly | |
|---|---|---|
| Width | 2.4" (61 mm) | 2.4" · 2.6" (61 mm) |
| Wheel sizes | 27.5" · 29" | 27.5" · 29" |
| Weight | 1,250 g (29x2.4 AGC) | 1,070 g (29x2.4 GRID Trail T9) |
| Casing | AGC (Advanced Gravity Casing) · 1-ply | GRID Trail |
| Casing | Trail · Enduro · Downhill | Trail · Enduro |
| TPI | 60 | 60 |
| Tread type | – | – |
| Tubeless ready | yes | yes |
| E-MTB approval | yes (E-25) | yes |
| Price from | €85 | €60 |
| Model year | 2024 | 2022 |
Rubber compounds
Hardness scale 1 = hard and fast to 5 = very soft and grippy (our own classification).
Different grip classes: the softer tire must roll slower. Read the watts with that in mind.
Specialized Hillbilly offers the softer compound range – more grip, usually at the cost of wear.
Lab data per version
| Kenda Double Black | Specialized Hillbilly | |
|---|---|---|
| Rolling resistance (W) | 30.8 W | 53.5 W |
| Impact protection (%) | 53.0 % | 28.7 % |
| Weighed weight (g) | 1,036.0 g | 1,065.0 g |
Kenda Double Black
All tested versions
Test series: ENDURO Mountainbike Magazine – Labortest 64 Reifen
Measured values per compound and casing from the same laboratory test. Empty cells mean no reliable value was published.
| Double Black Dual Layer Compound Enduro | 29 x 2.40 | 41.6 W | 13.42 % | 1258 g | 82.9 € |
| Double Black Triple Compound All Mountain | 29 x 2.40 | 30.8 W | 53.03 % | 1036 g | 82.99 € |
Rolling resistance
lower is better
- Double Black Triple Compound All Mountain30.8 W
- Double Black Dual Layer Compound Enduro41.6 W
Impact protection
higher is better
- Double Black Triple Compound All Mountain53.03 %
- Double Black Dual Layer Compound Enduro13.42 %
Specialized Hillbilly
Compounds & versions as curves
Up to three versions at once: the curve is modelled rolling resistance across pressure, the dot is the real lab measurement. Click the legend to show or hide a version.
- 30.8 W at 38 psi (2.62 bar) · Reference
- Puncture
- 53.03 %
- Weight
- 1036 g
- 37.3 W at 38 psi (2.62 bar) · +6.5 W
- Puncture
- –
- Weight
- 1174 g
- 41.6 W at 38 psi (2.62 bar) · +10.8 W
- Puncture
- 13.42 %
- Weight
- 1258 g
- 53.5 W
- Puncture
- 28.68 %
- Weight
- 1065 g
Without a lab test pressure we anchor the measured watt value at the recommended pressure. The curve shape is a physics model, not a measurement. Labs do not measure grip across pressure – we do not invent that curve. Wet grip is a lab value per tire model, not per version.
Three curves at most – hide one first.
Variants head to head
Every measured variant of the selected tires – the same model in another compound, width or casing sits right next to it. Empty fields mean no reliable measurement.
| Kenda Double BlackDouble Black Dual Layer Compound Enduro | 41.6 W | 13.42 % | 1258 g |
| Kenda Double BlackDouble Black Pro Dualcompound AEC · BIKE-Labor | 37.3 W | – | 1174 g |
| Kenda Double BlackDouble Black Triple Compound All Mountain | 30.8 W | 53.03 % | 1036 g |
| Specialized HillbillyHillbilly T9 Grid Trail | 53.5 W | 28.68 % | 1065 g |
Charts
Rolling resistance (fewer watts is better)
Impact protection (higher is better)
Editorial rating (higher is better)
At least one tire is missing too many editorial scores for a radar profile. We never draw missing values as zero.
TestedYour build – derived
Recommendation by use
- Fast laps and long climbs: Kenda Double Black rolls easier at 30.8 W.
- Bike park, rocks and e-MTB: Kenda Double Black protects better with 53% impact protection.
Tested
- Rolling resistance: Kenda Double Black leads with 30.8 W, Specialized Hillbilly trails by 22.7 W.
- Impact protection: Kenda Double Black leads with 53 %, Specialized Hillbilly trails by 24.4 %.
- Weighed weight: Kenda Double Black leads with 1,036 g, Specialized Hillbilly trails by 29 g.
Tests and sources
Kenda Double Black
The Kenda Double Black was tested in its Pro AEC version as an enduro tire for both front and rear use. It impresses with good rolling characteristics combined with strong puncture protection. This positions it as a solid, versatile option in the enduro segment.
BIKE Magazin
Specialized Hillbilly
The updated Specialized Hillbilly was tested over several weeks on loose and muddy ground. The widely spaced knobs provide excellent self-cleaning and dependable grip even in wet conditions. It remains the go-to choice for soft terrain in the American brand's lineup.
MTB-News.de