Road Bike Tire Comparison:
Continental Grand Prix 4000 RS 2018 vs
Continental Ultra Sport II 2015
Contents and Test Summary
- Manufacturer Specifications
- Size and Weight Measurements
- Rolling Resistance Test Results
- Puncture Resistance Test Results
- Static Grip Test Results
- Conclusion
- Continental Grand Prix 4000 RS *
- Continental Ultra Sport II *
* Grip test data not available
Performance compared to all other road bike tires
(100% is best)
(100% is best)
Pro Members get 11-point radar charts
Manufacturer Specifications
Manufacturer Specifications | ||
---|---|---|
Brand | Continental | Continental |
Model | Grand Prix 4000 RS | Ultra Sport II |
Year | 2018 | 2015 |
Tire Type | Tubetype (clincher) | Tubetype (clincher) |
Supplied By | Bought in store | Bought in store |
Full Review | Full Review | Full Review |
New or Used | New | New |
Mileage | 0 km | 0 km |
Price Range | High | Low |
Buy At | Ad Amazon.com | |
Manufacturer Part Number | 0101667 | 0150011 |
EAN | ||
TPI | 3/330 | 3/180 |
Compound | Black Chili | PureGrip |
Bead | Folding | Folding |
ETRTO | 25-622 | 25-622 |
Size Inch | 28" | 28" |
Width mm | 25 | 25 |
Specified Weight | 205 grams | 260 grams |
Min Air Pressure | psi | 95 psi |
Max Air Pressure | 120 psi | 120 psi |
Made In | Members Only | Members 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 | ||
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Size and Weight Measurements
Size and Weight Measurements | ||
---|---|---|
Model | Grand Prix 4000 RS | Ultra Sport II |
Specified Weight | 205 grams | 260 grams |
Measured Weight | 205 grams | 267 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 mm | 3 mm |
Total Tire Thickness Sidewall | Members Only | Members Only |
Unmounted Casing Width | No Data | No Data |
Unmounted Tread Width | No Data | 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. |
Rolling Resistance Test Results
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Rolling Resistance Test Results | ||
---|---|---|
Model | Grand Prix 4000 RS | Ultra Sport II |
Inner Tube | Conti Race28 (100gr butyl) | Conti Race28 (100gr butyl) |
Spin Up Video | YouTube | No Video |
Rolling Resistance 140 PSI / 9.7 Bar |
Not Tested | Not 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 Only | Members Only |
Rolling Resistance 60 PSI / 4.1 Bar |
Members Only | 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. |
Puncture Resistance Test Results
Puncture Resistance Test Results (higher is better) | ||
---|---|---|
Model | Grand Prix 4000 RS | Ultra Sport II |
Total Puncture Score Tread | 40 Points | 51 Points |
Total Puncture Score Sidewall | Members Only | Members Only |
Tread Puncture Force Sharp Needle | Members Only | Members Only |
Tread Puncture Force Blunt Needle | Members Only | Members Only |
Tread Total Tire Thickness | 2.3 mm | 3 mm |
Sidewall Puncture Force Sharp Needle | Members Only | Members Only |
Sidewall Puncture Force Blunt Needle | Members Only | Members Only |
Sidewall Total Tire Thickness | Members Only | Members Only |
Static Grip Test Results
Static Grip Test Results (higher is better) | ||
---|---|---|
Model | Grand Prix 4000 RS | Ultra Sport II |
Wet Grip Average | No Data | No Data |
Wet Grip Center | Members Only | Members Only |
Wet Grip Edge | Members Only | Members Only |
Grip in points = coefficient of friction * 100 | ||
Conclusion
Conclusion | ||
---|---|---|
Model | Grand Prix 4000 RS | Ultra Sport II |
Full Review | Full Review | Full Review |
Verdict | Highly Recommended | Recommended |
Rating | 5.0 / 5 | 3.0 / 5 |
Buy At | Ad Amazon.com |
- Continental Grand Prix 4000 RS *
- Continental Ultra Sport II *
* Grip test data not available
Performance compared to all other road bike tires(100% is best)
Pro Members get 11-point radar charts