Road Bike Tire Comparison:
Continental Grand Prix 4000 RS 2018 vs
Continental Ultra Sport II 2015

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Contents and Test Summary

  1. Manufacturer Specifications
  2. Size and Weight Measurements
  3. Rolling Resistance Test Results
  4. Puncture Resistance Test Results
  5. Conclusion
  • Continental Grand Prix 4000 RS
  • Continental Ultra Sport II
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)
Pro Members get 9-point radar charts

Manufacturer Specifications


Manufacturer Specifications
Brand ContinentalContinental
Model Grand Prix 4000 RSUltra Sport II
Year 20182015
Tire Type Tubetype (clincher)Tubetype (clincher)
Supplied By Bought in storeBought in store
Full Review Full ReviewFull Review
New or Used NewNew
Mileage 0 km0 km
Price Range HighLow
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Manufacturer Part Number 01016670150011
EAN
TPI 3/3303/180
Compound Black ChiliPureGrip
Bead FoldingFolding
ETRTO 25-62225-622
Size Inch 28"28"
Width mm 2525
Specified Weight 205 grams260 grams
Min Air Pressure psi95 psi
Max Air Pressure 120 psi120 psi
Made In Members OnlyMembers Only
Available Sizes 25-622 (700x25c)32-630 (27x1 1/4)
28-630 (27x1 1/8)
23-622 (700x23C)
25-622 (700x25C)
28-622 (700x28C)
32-622 (700x32C)
Image
Continental Grand Prix 4000 RS 2018
Continental Ultra Sport II 2015
Image
Continental Grand Prix 4000 RS 2018
Continental Ultra Sport II 2015
Image
Continental Grand Prix 4000 RS 2018
Continental Ultra Sport II 2015

Size and Weight Measurements


Size and Weight Measurements
Model Grand Prix 4000 RSUltra Sport II
Specified Weight 205 grams260 grams
Measured Weight 205 grams267 grams
System Adjusted Weight 305 grams
(tire + inner tube)		367 grams
(tire + inner tube)
Measured Width 27 mm (un-round)26 mm (un-round)
Measured Height 24 mm (un-round)24 mm (un-round)
Total Tire Thickness Center 2.3 mm3 mm
Total Tire Thickness Sidewall Members OnlyMembers Only
Unmounted Casing Width No DataNo Data
Unmounted Tread Width No DataNo Data
All size measurements are taken at an air pressure of 100 psi / 6.9 bars on a 17.8 mm inner width rim.

Rolling Resistance Test Results


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Rolling Resistance Test Results
Model Grand Prix 4000 RSUltra Sport II
Inner Tube Conti Race28 (100gr butyl)Conti Race28 (100gr butyl)
Spin Up Video YouTubeNo Video
Rolling Resistance
140 PSI / 9.7 Bar		 Not TestedNot Tested
Rolling Resistance
120 PSI / 8.3 Bar		 10.5 Watts
CRR: 0.00315		14.3 Watts
CRR: 0.00429
Rolling Resistance
100 PSI / 6.9 Bar		 11.0 Watts
CRR: 0.00330		14.8 Watts
CRR: 0.00444
Rolling Resistance
80 PSI / 5.5 Bar		 Members OnlyMembers Only
Rolling Resistance
60 PSI / 4.1 Bar		 Members OnlyMembers 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.

Puncture Resistance Test Results


Puncture Resistance Test Results (higher is better)
Model Grand Prix 4000 RSUltra Sport II
Total Puncture Score Tread 40 Points51 Points
Total Puncture Score Sidewall Members OnlyMembers Only
Tread Puncture Force Sharp Needle Members OnlyMembers Only
Tread Puncture Force Blunt Needle Members OnlyMembers Only
Tread Total Tire Thickness 2.3 mm3 mm
Sidewall Puncture Force Sharp Needle Members OnlyMembers Only
Sidewall Puncture Force Blunt Needle Members OnlyMembers Only
Sidewall Total Tire Thickness Members OnlyMembers Only

Conclusion


Conclusion
Model Grand Prix 4000 RSUltra Sport II
Full Review Full ReviewFull Review
Verdict Highly RecommendedRecommended
Rating 5.0 / 53.0 / 5
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  • Continental Grand Prix 4000 RS
  • Continental Ultra Sport II
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)
Pro Members get 9-point radar charts


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Rene HerseSteilacoom TC26.9 W
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WTBResolute TCS Light28.6 W
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