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
- Conclusion
- Continental Grand Prix 4000 RS
- Continental Ultra Sport II
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)
(100% is fastest - lightest - thickest - strongest)
Pro Members get 9-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) |
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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 |
| Puncture Resistance Tread | 9 Points | 10 Points |
| Puncture Resistance Sidewall | Members Only | Members Only |
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
(100% is fastest - lightest - thickest - strongest)
Pro Members get 9-point radar charts