Touring Bike Tire Comparison:
Continental Contact II 2015 vs
Vredestein Perfect-E 2015
Contents and Test Summary
- Manufacturer Specifications
- Size and Weight Measurements
- Rolling Resistance Test Results
- Puncture Resistance Test Results
- Conclusion
- Continental Contact II
- Vredestein Perfect-E
Performance compared to all other touring bike tires
(100% is fastest - lightest - thickest - strongest)
(100% is fastest - lightest - thickest - strongest)
Manufacturer Specifications
| Manufacturer Specs | ||
|---|---|---|
| Brand | Continental | Vredestein |
| Model | Contact II | Perfect-E |
| Year | 2015 | 2015 |
| Supplied By | Supplied by Continental | Supplied by Continental |
| Full Review | Full Review | Full Review |
| New or Used | New | New |
| Mileage | 0 km | 0 km |
| Price Range | Med | Med |
| Buy At | Ad Amazon.com | |
| Manufacturer Part Number | 0100262 | |
| TPI | 3/180 | 30 |
| Compound | ||
| Bead | Wire | Wire |
| ETRTO | 37-622 | 37-622 |
| Size Inch | 28" | 28" |
| Width mm | 37 | 37 |
| Specified Weight | 620 grams | 660 grams |
| Min Air Pressure | 60 psi | 56 psi |
| Max Air Pressure | 88 psi | 80 psi |
| Made In | India | |
| Available Sizes | 47-622 (28x1.75) 42-622 (28x1.60) 37-622 (28x1.40) 32-622 (28x1.25) 28-622 (28x1.10) | 47-622 (28x1.75) 40-622 (28x1.50) 37-622 (28x1.40) 47-559 (26x1.75) |
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Size and Weight Measurements
| Size and Weight Measurements | ||
|---|---|---|
| Model | Contact II | Perfect-E |
| Specified Weight | 620 grams | 660 grams |
| Measured Weight | 623 grams | 693 grams |
| Measured Width Casing | 34 mm | 37 mm |
| Measured Height | 31 mm | 37 mm |
| Tread Depth | 1.8 mm | 2.2 mm |
| Total Tire Thickness Center | 4.2 mm | 4.8 mm |
| Total Tire Thickness Sidewall | 1.95 mm | 1.4 mm |
| All size measurements are taken at an air pressure of 60 psi / 4 bars on a 17.8 mm inner width rim. | ||
Rolling Resistance Test Results
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| Rolling Resistance Test Results | ||
|---|---|---|
| Model | Contact II | Perfect-E |
| Inner Tube | Conti Tour 28 (170 gr butyl) | Conti Tour 28 (170 gr butyl) |
| Spin Up Video | No Video | No Video |
| Rolling Resistance 90 PSI / 6 Bar |
20.3 Watts CRR: 0.00609 | No Data |
| Rolling Resistance 75 PSI / 5 Bar |
21.7 Watts CRR: 0.00650 | 24.6 Watts CRR: 0.00737 |
| Rolling Resistance 60 PSI / 4 Bar |
24.3 Watts CRR: 0.00728 | 27.3 Watts CRR: 0.00818 |
| Rolling Resistance 45 PSI / 3 Bar |
28.9 Watts CRR: 0.00866 | 32.0 Watts CRR: 0.00959 |
| Rolling Resistance 30 PSI / 2 Bar |
39.4 Watts CRR: 0.01181 | 41.3 Watts CRR: 0.01238 |
| 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 | Contact II | Perfect-E |
| Puncture Resistance Tread | 11 Points | 13 Points |
| Puncture Resistance Side | 7 Points | 4 Points |
| Puncture Factor Tread* | 46 Points | 62 Points |
| Puncture Factor Side* | 14 Points | 6 Points |
| * Puncture Factor = Puncture Resistance * Total Tire Thickness. Puncture Factor provides a more realistic puncture resistance score for touring tires. |
||
Conclusion
| Conclusion | ||
|---|---|---|
| Model | Contact II | Perfect-E |
| Full Review | Full Review | Full Review |
| Verdict | Not Recommended | Not Recommended |
| Rating | 2 / 5 | 2 / 5 |
| Buy At | Ad Amazon.com | |
- Continental Contact II
- Vredestein Perfect-E
(100% is fastest - lightest - thickest - strongest)