Road Bike Tire Comparison:
Bontrager R4 320 2016 vs
Pirelli P Zero Velo 2017
Contents and Test Summary
- Manufacturer Specifications
- Size and Weight Measurements
- Rolling Resistance Test Results
- Puncture Resistance Test Results
- Conclusion
- Bontrager R4 320
- Pirelli P Zero Velo
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)
(100% is fastest - lightest - thickest - strongest)
Manufacturer Specifications
| Manufacturer Specifications | ||
|---|---|---|
| Brand | Bontrager | Pirelli |
| Model | R4 320 | P Zero Velo |
| Year | 2016 | 2017 |
| 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 | Very High | High |
| Buy At | Ad Amazon.com | |
| Manufacturer Part Number | ||
| EAN | ||
| TPI | 320 | 127 |
| Compound | SmartNET Silica | |
| Bead | Folding | Folding |
| ETRTO | 25-622 | 25-622 |
| Size Inch | 28" | 28" |
| Width mm | 25 | 25 |
| Specified Weight | 230 grams | 210 grams |
| Min Air Pressure | 90 psi | psi |
| Max Air Pressure | 140 psi | 110 psi |
| Made In | Thailand | France |
| Available Sizes | 25-622 (700x25C) | 23-622 (700x23C) 25-622 (700x25C) 28-622 (700x28C) |
| Image |  |  |
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Size and Weight Measurements
| Size and Weight Measurements (Bike Wheel: 622-17C, Pressure: 100 psi / 6.8 bar) | ||
|---|---|---|
| Model | R4 320 | P Zero Velo |
| Specified Weight | 230 grams | 210 grams |
| Measured Weight | 226 grams | 210 grams |
| System Adjusted Weight | 326 grams (tire + inner tube) | 310 grams (tire + inner tube) |
| Measured Width | 25 mm | 27 mm |
| Measured Height | 22 mm | 25 mm |
| Total Tire Thickness Center | 2.2 mm | 2.6 mm |
| Total Tire Thickness Sidewall | 0.8 mm | 0.6 mm |
| Unmounted Casing Width | No Data | No Data |
| Unmounted Tread Width | No Data | No Data |
Rolling Resistance Test Results
| Rolling Resistance Test Results (Speed: 29 kmh / 18 mph, Load: 42.5 kg) | ||
|---|---|---|
| Model | R4 320 | P Zero Velo |
| Inner Tube | Conti Race28 (100gr butyl) | Conti Race28 (100gr butyl) |
| Rolling Resistance 140 psi | Not Tested | Not Tested |
| Rolling Resistance 120 psi | 11.5 Watts | 12.5 Watts |
| Rolling Resistance 100 psi | 12.2 Watts | 13.2 Watts |
| Rolling Resistance 80 psi | 13.9 Watts | 14.6 Watts |
| Rolling Resistance 60 psi | 16.4 Watts | 17.2 Watts |
| CRR 140 psi / 9.7 Bar | Not Tested | Not Tested |
| CRR 120 psi / 8.1 Bar | 0.00345 | 0.00375 |
| CRR 100 psi / 6.8 Bar | 0.00366 | 0.00396 |
| CRR 80 psi / 5.5 Bar | 0.00417 | 0.00438 |
| CRR 60 psi / 4.1 Bar | 0.00492 | 0.00516 |
| Spin Up Video | YouTube | YouTube |
Puncture Resistance Test Results
| Puncture Resistance Test Results (higher is better) | ||
|---|---|---|
| Model | R4 320 | P Zero Velo |
| Puncture Resistance Tread | 10 Points | 12 Points |
| Puncture Resistance Sidewall | 4 Points | 4 Points |
Conclusion
| Conclusion | ||
|---|---|---|
| Model | R4 320 | P Zero Velo |
| Full Review | Full Review | Full Review |
| Verdict | Recommended | Highly Recommended |
| Rating | 4 / 5 | 5 / 5 |
| Buy At | Ad Amazon.com | |
- Bontrager R4 320
- Pirelli P Zero Velo
(100% is fastest - lightest - thickest - strongest)