Road Bike Tire Test: Continental Grand Prix Attack II

Published: by
Facebook like buttonTwitter like buttonEmail share button
  • Continental Grand Prix Attack II
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)
Pro Members get 9-point radar charts

Continental Grand Prix Attack II road bike tire on a rolling resistance test machine

The Continental Grand Prix Attack II is the front tire of the Grand Prix Attack II/Force II road set. Its smaller 22C size should provide an aerodynamic advantage when used as a front tire while the slightly bigger 24C Force II provides increased comfort and grip as a rear tire. Both these tires are very closely related to the popular Grand Prix 4000S II as they use the same 3/330 casing and Black Chili compound.


Ad Buy Continental Grand Prix Attack II at Amazon.com


As I've already mentioned in the GP Force II (review), it's important to consider rim width as well if you want to gain an aerodynamic advantage from the smaller front tire. Just mounting a smaller tire to a rim that has been aerodynamically optimized to be used with a bigger tire isn't going to give you an advantage. When you're going through all the trouble to gain those last few tenths, you should use a smaller rim on the front wheel as well.

Manufacturer Specifications


Manufacturer Specifications
Brand Continental
Model Grand Prix Attack II
Year 2016
Tire Type Tubetype (clincher)
Supplied By Bought in store
New or Used New
Mileage 0 km
Price Range High
Buy At Ad Amazon.com
Manufacturer part number 0100488
TPI 3/330
Compound Black Chili
Bead Folding
ETRTO 22-622
Size Inch 28"
Width 22
Specified Weight 175 grams
Max Pressure 120
Made In Members Only
Available Sizes 22-622 (700x22C)

Continental Grand Prix Attack II Test Results

Continental Grand Prix Attack II road bike tire on a rolling resistance test machine

Size, Weight, and Thickness Measurements


advertisement
Size, Weight and Thickness Measurements
Specified Weight 175 grams
Measured Weight 182 grams
System Adjusted Weight
(tire + inner tube (100 gr)
282 grams
Measured Width 24 mm (un-round)
Measured Height 21 mm (un-round)
Total Tire Thickness Center 2.2 mm
Total Tire Thickness Sidewall Members Only
Unmounted Casing Width No Data
Unmounted Tread Width No Data
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 22C Grand Prix Attack is a low 175 grams. My sample came in at 182 grams. The measured width and height on a 17C rim, at an air pressure of 100 psi is 24 mm and 21 mm respectively. The sizing seems to be in line with the other Conti tires which mostly come in 1-2 mm wider than specified on my rim/air pressure.


The total thickness of the tire at the center of the tread comes in at 2.2 mm which is slightly less than the GP Force which came in at 2.3 mm. 2.2 mm is on the thin side for a road bike tire as most all-round tires seem to come just shy of 3 mm while the no-compromise time-trial tires come in closer to 2 mm. The GP Attack/Force definitely won't come near the mileage a GP 4000S II provides.

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
11.7 Watts
CRR: 0.00351
Rolling Resistance
100 PSI / 6.9 Bar
12.7 Watts
CRR: 0.00381
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.

*Please note that I usually test 24/25C tires which have a bigger volume than the 22C Attack. As all tests are performed at the same air pressures to make it easier to compare all data side by side, real rolling resistance of the smaller tires will be slightly better as you can run a higher pressure for the same comfort level.


At very high air pressures, rolling resistance of the Attack II is slightly higher than the Force II 24C, but lower than the GP4000S II 25C (read review). When dropping air pressures, rolling resistance starts to go up faster than most other tires which can be attributed to the lower volume. Like already noted, the 22C Attack is the smallest sized tire on this website which means it will be harder to compare to the rest of the tires. Overall, rolling resistance appears to be a bit higher than the GP Force.

Puncture Resistance Test Results

Continental Grand Prix Attack II road bike tire on a rolling resistance test machine
Puncture Resistance Test Results (higher is better)
Puncture Resistance Tread 9 Points
Puncture Resistance Sidewall Members Only

In the puncture resistance tests, the GP Attack performs equally in both the tread and sidewall tests. With a score of 9 points in the tread test, both the Attack and Force offer less puncture resistance than the popular GP4000S II which came in at 11 points.

Conclusion


  • Continental Grand Prix Attack II
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)

Pro Members get 9-point radar charts

Overall, rolling resistance of the Grand Prix Attack is slightly higher when compared to the Grand Prix Force while providing the same tread thickness and puncture resistance. Compared to the Grand Prix 4000S II (read review) or Grand Prix TT (read review), the Attack doesn't appear to offer any advantages. Keep in mind to use a wheel optimized for 22C tires on the front and a wheel optimized for 24C tires in the rear if you're looking to gain an aerodynamic advantage from a smaller front tire.


I rate the Force/Attack front/rear combo 4 out of 5 because most people have the same width rims front/rear which will make it hard to gain an aerodynamic advantage from these tires. Also, going with a 23C/25C Grand Prix TT combo will give you the same advantage while providing a much lower rolling resistance.

Ad Buy Continental Grand Prix Attack II at Amazon.com


RATING: 4.0 / 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