Road Bike Tire Test: Specialized S-Works Turbo

Published: by
Facebook like buttonTwitter like buttonEmail share button
  • Specialized S-Works Turbo
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)
Pro Members get 9-point radar charts

Specialized S-Works Turbo road bike tire on a rolling resistance test machine

"World's fastest tire" is printed on the front of the packaging the Specialized S-Works Turbo comes in. This is quite a bold claim, and it means it should be even faster than the very fast and expensive Specialized Turbo Cotton that I reviewed some time ago. On the backside of the packaging, they also claim this tire to have 20% less rolling resistance and superior grip over the next best competitor.


That next best competitor is probably the Continental Grand Prix 4000S II (read review) which is a tire that performs very strong in the rolling resistance test. To beat the GP4000S II, this tires uses a 120 TPI folding bead nylon casing, the Specialized Gripton compound, and a layer of Specialized BlackBelt anti-puncture material under the tread.


The S-Works Turbo is available in 700x22, 700x24, 700x26, and 700x28 sizes. I've gone with the 700x24 as I try to stick to tires rated at 23-25 mm wide for these tests. I must add that after measuring the true size of the S-Works Turbo, the 700x26 version comes a lot closer to most other 25-622 rated tires than the 24-622 version. If you're looking to replace your 700x25 tires with these, go with the 700x26.

Manufacturer Specifications


Manufacturer Specifications
Brand Specialized
Model S-Works Turbo
Year 2016
Tire Type Tubetype (clincher)
Supplied By Bought in store
New or Used New
Mileage 0 km
Price Range High
Buy At
Manufacturer part number 00015-1074
TPI 120
Compound Gripton
Bead Folding
ETRTO 24-622
Size Inch 28"
Width 25
Specified Weight 210 grams
Max Pressure 125
Made In Members Only
Available Sizes 24-622 (700x24C)
26-622 (700x26C)
28-622 (700x28C)

Specialized S-Works Turbo Test Results

Specialized S-Works Turbo road bike tire on a rolling resistance test machine

Size, Weight, and Thickness Measurements


advertisement
Size, Weight and Thickness Measurements
Specified Weight 210 grams
Measured Weight 215 grams
System Adjusted Weight
(tire + inner tube (100 gr)
315 grams
Measured Width 25 mm (un-round)
Measured Height 22 mm (un-round)
Total Tire Thickness Center 2.8 mm
Total Tire Thickness Sidewall Members Only
Unmounted Casing Width 60 mm
Unmounted Tread Width Members Only
All size measurements are taken at an air pressure of 100 psi / 6.9 bars on a 17.8 mm inner width rim.

The specified weight of the 700x24 S-Works Turbo is 210 grams; my sample comes in slightly higher at 215 grams. The measured width and height on a 17C rim, at an air pressure of 100 psi / 6.8 bars is 25 and 22 mm respectively.


The total thickness of the tire at the center of the tread is 2.8 mm. 2.8 mm is similar to most other all-round tires that seem to come in at 2.5 - 3.0 mm. The sidewalls have a thickness of 0.5 mm which is also similar to other tires in the same class.

Rolling Resistance Test Results


Rolling Resistance Test Results
Inner Tube Conti Race28 (100gr butyl)
Rolling Resistance
140 PSI / 9.7 Bar
Not Tested
Rolling Resistance
120 PSI / 8.3 Bar
13.4 Watts
CRR: 0.00402
Rolling Resistance
100 PSI / 6.9 Bar
14.4 Watts
CRR: 0.00432
Rolling Resistance
80 PSI / 5.5 Bar
Members Only
Rolling Resistance
60 PSI / 4.1 Bar
Members Only
All numbers are for a single tire at a speed of 29 km/h / 18 mph and a load of 42.5 kg / 94 lbs.

Use the formula: RR (Watts) = CRR * speed (m/s) * load (N) to calculate rolling resistance at a given speed and load.

Rolling resistance definitely isn't 20% lower than the Continental GP4000S II (read review). At an air pressure of 120 psi / 8.3 bars, rolling resistance is 13.4 watts which is already 1.2 watts more than the GP4000S II. At lower air pressures, the disadvantage gets even bigger. At an air pressure of 60 psi / 4.1 bars, rolling resistance of the Turbo is 19.6 watts Vs 15.5 watts for the GP4000S II.


So is this the world's fastest tire? Rolling resistance is 20% less than the next best competitor? That just isn't true, and it's very misleading to put something like that on the packaging.

Puncture Resistance Test Results

Specialized S-Works Turbo road bike tire on a rolling resistance test machine
Puncture Resistance Test Results (higher is better)
Puncture Resistance Tread 10 Points
Puncture Resistance Sidewall Members Only

Maybe the puncture resistance is much better than the competition? Nope, also not right. The S-Works Turbo scores just 10 points in the puncture resistance test, which is less than the competition. Most of the other all-round tires like the Conti GP4000S II, Michelin Power Competition, and Schwalbe One score 11-12 points in this test.


Puncture resistance of the sidewall is also average at best. It scores 4 points which is similar to most other high TPI tires with unprotected sidewalls.

Conclusion


  • Specialized S-Works Turbo
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)

Pro Members get 9-point radar charts

After reading all the marketing talk on the packaging of the Specialized S-Works Turbo, I was looking forward to seeing some great results from this tire. According to the packaging, this tire should have come in at less than 10 watts in the rolling resistance test. In reality, It comes in at 13.4 watts, and rolling resistance rises much faster at lower air pressures when compared to the competition. To make things even worse, puncture resistance isn't impressive either.


When you forget about all the claims of this being the fastest tire in the world, the Specialized S-Works Turbo isn't a bad tire and grip could very well be superb. If you want truly fast Specialized tires, spend a bit more and grab a pair of Turbo Cottons. If you're looking for some more all-round tires, the Conti GP4000S II (read review), Michelin Power Competition (read review), and Schwalbe One (read review) will be faster.

RATING: 3.0 / 5
TEST VERDICT:
Recommended


Comments



Get updates on new articles
Road Bike Rolling Resistance Reviews
Excludes previous models/discontinued tires
Visit the road bike overview to view all
Brand Model Watts
VittoriaCorsa Speed G+ 2.0 (TLR)7.0 W
SchwalbePro One TT TLE Addix7.5 W
ContinentalGrand Prix 5000 TL8.3 W
MichelinPower Time Trial8.6 W
VittoriaCorsa Speed (tubular)9.1 W
SpecializedTurbo RapidAir 2Bliss Ready9.7 W
ContinentalGrand Prix TT9.9 W
ContinentalGrand Prix 500010.0 W
MichelinPower Road TLR10.1 W
HutchinsonFusion 5 Galactik TL10.1 W
SpecializedTurbo Cotton10.1 W
PirelliP Zero Velo TT10.2 W
ContinentalGrand Prix SuperSonic10.2 W
SchwalbePro One TLE Addix10.2 W
PirelliP Zero Velo Race TLR SL10.3 W
MichelinPower Competition10.9 W
ContinentalGrand Prix Force II11.0 W
BontragerR4 32011.5 W
ZippTangente Speed11.6 W
MavicYksion Pro UST Tubeless11.7 W
PirelliP Zero Velo Race TLR11.7 W
ContinentalGrand Prix Attack II11.7 W
VittoriaRubino Pro Speed11.9 W
VittoriaCorsa G+ 2.0 TLR12.2 W
VittoriaCorsa G+ (tubular)12.3 W
MichelinPower Road12.4 W
PirelliP Zero Velo12.5 W
VittoriaCorsa Control G+ 2.0 TLR12.6 W
SchwalbePro One (tubetype) Addix12.8 W
VittoriaCorsa Elite (tubular)12.9 W
VittoriaCorsa G+ 2.0 (open)13.0 W
HutchinsonFusion 5 Performance TL13.1 W
MaxxisPadrone Tubeless Ready13.1 W
MaxxisHigh Road13.2 W
ChallengeStrada Pro13.4 W
VeloflexCorsa13.4 W
SpecializedS-Works Turbo13.4 W
PanaracerRace L Evo 313.9 W
ContinentalGrand Prix14.0 W
ContinentalUltra Sport III14.1 W
VittoriaCorsa Control G+ 2.0 (open)14.1 W
MichelinPro 4 Endurance v214.2 W
ContinentalCompetition (tubular)14.2 W
HutchinsonFusion 5 All Season TL14.3 W
MichelinPower Endurance14.5 W
PirelliP Zero Velo 4S14.7 W
MichelinPro 4 Service Course14.9 W
MavicYksion Elite15.0 W
VittoriaZaffiro Pro G+ 2.015.2 W
VittoriaRubino Pro G+ 2.015.2 W
ZippTangente Course15.3 W
MichelinKrylion 2 Endurance15.4 W
SchwalbeOne Performance Addix15.4 W
PirelliCinturato Velo TLR15.6 W
SchwalbeOne TLE Performance Addix15.8 W
MichelinLithion 215.9 W
SchwalbePro One HT (tubular)16.1 W
PanaracerRace A Evo 316.4 W
SchwalbeDurano Plus Addix16.4 W
VittoriaRubino Pro Control16.9 W
ClementStrada LGG16.9 W
ContinentalGrand Prix 4 Season17.2 W
MichelinDynamic Sport17.3 W
PanaracerRace D Evo 317.4 W
SchwalbeDurano18.0 W
SchwalbeLugano II18.0 W
VredesteinFortezza Senso All Weather18.0 W
ContinentalGatorskin19.3 W
ContinentalGator Hardshell19.5 W
SchwalbeDurano DD Addix19.5 W
MichelinPower All Season21.3 W
MaxxisRe-Fuse22.6 W
View All
CX/Gravel Rolling Resistance Reviews
Brand Model Watts
PanaracerGravelKing TLC20.8 W
ContinentalTerra Speed TR20.8 W
MichelinPower Gravel24.1 W
PanaracerGravelKing SK TLC24.7 W
PirelliCinturato Cross Hard Terrain25.2 W
ChallengeGrifo Pro25.7 W
ContinentalTerra Trail TR26.0 W
HutchinsonOveride26.0 W
WTBRiddler TCS Light26.6 W
VittoriaTerreno Dry G+ 2.027.0 W
VittoriaTerreno Zero G+ 2.027.2 W
WTBNano TCS Light28.6 W
SchwalbeG-One Speed Super Ground V-Guard SpeedGrip28.6 W
ChallengeGravel Grinder28.7 W
VittoriaTerreno Mix G+ 2.029.4 W
PirelliCinturato Cross Mixed Terrain29.7 W
SchwalbeG-One Ultrabite TLE SpeedGrip29.8 W
SchwalbeG-One Allround Super Ground SpeedGrip29.8 W
VittoriaTerreno Wet G+ 2.032.2 W
MaxxisRe-Fuse Gravel33.9 W
View All
Mountain Bike Rolling Resistance Reviews
Excludes previous models/discontinued tires
Visit the MTB overview to view all
Brand Model Watts
ContinentalSpeed King II RaceSport19.1 W
ContinentalRace King Protection20.2 W
ContinentalRace King RaceSport22.4 W
SchwalbeRocket Ron LiteSkin Addix Speed22.6 W
SchwalbeRacing Ralph LiteSkin Addix Speed25.0 W
ContinentalRace King Performance26.3 W
SchwalbeRocket Ron TL-E Addix Speed26.7 W
SchwalbeRacing Ralph 2019 TLE Addix Speed27.0 W
ContinentalRace King Sport27.0 W
SchwalbeRocket Ron TL-E Addix SpeedGrip27.2 W
VittoriaMezcal TNT G+ 2.028.0 W
SpecializedS-Works Fast Trak28.0 W
SchwalbeRacing Ray TLE Addix SpeedGrip28.3 W
SchwalbeRacing Ralph TL-E Addix SpeedGrip28.7 W
ContinentalCross King Protection29.0 W
VittoriaBarzo TNT G+ 2.030.0 W
MaxxisAspen EXO TR30.6 W
IRCMythos XC30.8 W
MaxxisRekon Race EXO TR31.1 W
SpecializedS-Works Ground Control31.3 W
MaxxisIkon 3C MaxxSpeed TLR31.5 W
ContinentalMountain King II RaceSport31.5 W
MichelinJet XCR33.2 W
MaxxisArdent Race 3C EXO TR35.1 W
MichelinForce XC35.3 W
KendaSmall Block Eight35.6 W
MichelinForce AM37.4 W
MaxxisIkon eXCeption Silkworm38.2 W
VittoriaAKA40.7 W
View All
Touring Bike Rolling Resistance Reviews
Brand Model Watts
SchwalbeMarathon Almotion17.1 W
VittoriaVoyager Hyper17.7 W
CompassBon Jon Pass18.6 W
SchwalbeMarathon Supreme19.1 W
ContinentalSport Contact II20.6 W
SchwalbeMarathon (GreenGuard)21.3 W
SchwalbeEnergizer Plus21.5 W
CSTE-Series Reach21.9 W
ContinentalTop Contact II24.2 W
ContinentalContact II24.3 W
SchwalbeMarathon Racer24.6 W
SchwalbeKojak24.8 W
ContinentalCity Ride II25.1 W
SchwalbeMarathon Plus25.5 W
SchwalbeMarathon Mondial Evo26.7 W
VredesteinPerfect-E27.3 W
SchwalbeMarathon E-Plus27.4 W
ContinentalTop Contact Winter II28.5 W
VittoriaRandonneur32.4 W
ContinentalE.Contact33.4 W
View All
Fat Bike Rolling Resistance Reviews
Brand Model Watts
SchwalbeJumbo Jim LiteSkin PaceStar36.9 W
SchwalbeJumbo Jim SnakeSkin38.6 W
SpecializedFast Trak Fat43.4 W
VeeRubber Vee 845.8 W
SurlyLarry48.4 W
45NRTHVan Helga51.0 W
45NRTHHusker Du51.7 W
SurlyLarry 27 TPI53.0 W
VittoriaBomboloni TNT53.9 W
MaxxisMammoth54.7 W
PanaracerFat B Nimble55.4 W
KendaJuggernaut Pro59.2 W
View All