CX/Gravel Tire Comparison:
Continental Terra Speed TR E-25 45 2024 vs
Pirelli P Zero Race TLR SpeedCore 40 2024 vs
Tufo Gravel Thundero HD 40 2023
Contents and Test Summary
- Manufacturer Specifications
- Size and Weight Measurements
- Rolling Resistance Test Results
- Puncture Resistance Test Results
- Static Grip Test Results
- Conclusion
- Continental Terra Speed TR E-25 45
- Pirelli P Zero Race TLR SpeedCore 40
- Tufo Gravel Thundero HD 40
Performance compared to all other CX/Gravel tires
(100% is best)
(100% is best)
Pro Members get 11-point radar charts
Manufacturer Specifications
| Manufacturer Specifications | |||
|---|---|---|---|
| Brand | Continental | Pirelli | Tufo |
| Model | Terra Speed TR E-25 45 | P Zero Race TLR SpeedCore 40 | Gravel Thundero HD 40 |
| Year | 2024 | 2024 | 2023 |
| Supplied By | Bought in store | Bought in store | Bought in store |
| Full Review | Full Review | Full Review | Full Review |
| New or Used | New | New | New |
| Mileage | 0 km | 0 km | 0 km |
| Price Range | High | Very High | High |
| Buy At | Ad Amazon.com | Ad Amazon.com | |
| Manufacturer Part Number | 0102016 | 4155500 | 139231741034 |
| EAN | 4019238093094 | 8019227415551 | 8592723057000 |
| TPI | 3/180 | 120 | 130/255 |
| Compound | Black Chili | SmartEvo | - |
| Bead | Folding | Folding | Folding |
| ETRTO | 45-622 | 40-622 | 40-622 |
| Specified Weight | 530 grams | 455 grams | 460 grams |
| Min Air Pressure | psi | psi | 30 psi |
| Max Air Pressure | 65 psi | 73 psi | 70 psi |
| Made In | Members Only | Members Only | Members Only |
| Available Sizes | 35-622 (700x35c) 40-622 (700x40c) 45-622 (700x45c) 35-584 (650x35b) 40-584 (650x40b) | 26-622 (700x26c) 28-622 (700x28c) 30-622 (700x30c) 32-622 (700x32c) 35-622 (700x35c) 40-622 (700x40c) | 40-622 (700x40c) 44-622 (700x44c) |
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Size and Weight Measurements
| Size and Weight Measurements | |||
|---|---|---|---|
| Model | Terra Speed TR E-25 45 | P Zero Race TLR SpeedCore 40 | Gravel Thundero HD 40 |
| Specified Weight | 530 grams | 455 grams | 460 grams |
| Measured Weight | 506 grams | 456 grams | 461 grams |
| Measured Width Casing | 42 mm (un-round) | 37 mm (un-round) | 38 mm (un-round) |
| Measured Width Tread | 42 mm | 35 mm | 40 mm |
| Measured Height | 40 mm (un-round) | 35 mm (un-round) | 35 mm (un-round) |
| Measured Knob Height Center | 1.1 mm | 0.0 mm | 1.4 mm |
| Measured Knob Height Edge | 1.2 mm | 0.0 mm | 2.2 mm |
| Measured Casing Thickness Center | 2.50 mm | 3.60 mm | 1.70 mm |
| Measured Total Thickness Sidewall | Members Only | Members Only | Members Only |
| All size measurements are taken at low air pressure on a 17.8 mm inner width rim. | |||
Rolling Resistance Test Results
| Rolling Resistance Test Results | |||
|---|---|---|---|
| Model | Terra Speed TR E-25 45 | P Zero Race TLR SpeedCore 40 | Gravel Thundero HD 40 |
| Spin Up Video | YouTube | YouTube | YouTube |
| Inner Tube | None (30 ml sealant) | None (30 ml sealant) | None (30 ml sealant) |
| Measured Width | 42 mm | 37 mm | 38 mm |
| Rolling Resistance Real tire width in mm: 30-32 = 66 psi/4.6 bar 33-35 = 60 psi/4.1 bar 36-38 = 54 psi/3.7 bar 39-42 = 50 psi/3.4 bar 43-46 = 46 psi/3.2 bar 47-50 = 42 psi/2.9 barHigh Air Pressure |
Members Only | Members Only | Members Only |
| Rolling Resistance Real tire width in mm: 30-32 = 55 psi/3.8 bar 33-35 = 50 psi/3.4 bar 36-38 = 45 psi/3.1 bar 39-42 = 42 psi/2.9 bar 43-46 = 38 psi/2.6 bar 47-50 = 35 psi/2.4 barMedium Air Pressure |
Members Only | Members Only | Members Only |
| Rolling Resistance Real tire width in mm: 30-32 = 44 psi/3.0 bar 33-35 = 40 psi/2.8 bar 36-38 = 36 psi/2.6 bar 39-42 = 33 psi/2.3 bar 43-46 = 31 psi/2.1 bar 47-50 = 28 psi/1.9 barLow Air Pressure |
17.4 Watts CRR: 0.00522 (33 psi / 2.3 bar) | 17.0 Watts CRR: 0.00510 (36 psi / 2.6 bar) | 19.2 Watts CRR: 0.00576 (36 psi / 2.6 bar) |
| Rolling Resistance Real tire width in mm: 30-32 = 33 psi/2.3 bar 33-35 = 30 psi/2.1 bar 36-38 = 27 psi/1.9 bar 39-42 = 25 psi/1.7 bar 43-46 = 23 psi/1.6 bar 47-50 = 21 psi/1.4 barExtra Low Air Pressure |
19.8 Watts CRR: 0.00594 (25 psi / 1.7 bar) | 20.4 Watts CRR: 0.00612 (27 psi / 1.9 bar) | 22.3 Watts CRR: 0.00668 (27 psi / 1.9 bar) |
| The CX/Gravel section is a multi tire size section, air pressures have been adjusted to the measured casing width. 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. |
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Puncture Resistance Test Results
| Puncture Resistance Test Results (higher is better) | |||
|---|---|---|---|
| Model | Terra Speed TR E-25 45 | P Zero Race TLR SpeedCore 40 | Gravel Thundero HD 40 |
| Total Puncture Score Tread | 45 Points | 73 Points | 40 Points |
| Total Puncture Score Sidewall | Members Only | Members Only | Members Only |
| Tread Puncture Force Sharp Needle | Members Only | Members Only | Members Only |
| Tread Puncture Force Blunt Needle | Members Only | Members Only | Members Only |
| Tread Total Tire Thickness | 2.5 mm | 3.6 mm | 1.7 mm |
| Sidewall Puncture Force Sharp Needle | Members Only | Members Only | Members Only |
| Sidewall Puncture Force Blunt Needle | Members Only | Members Only | Members Only |
| Sidewall Total Tire Thickness | Members Only | Members Only | Members Only |
Static Grip Test Results
| Static Grip Test Results (higher is better) | |||
|---|---|---|---|
| Model | Terra Speed TR E-25 45 | P Zero Race TLR SpeedCore 40 | Gravel Thundero HD 40 |
| Wet Grip Average | 68 Points | 82 Points | 73 Points |
| Wet Grip Center | Members Only | Members Only | Members Only |
| Wet Grip Edge | Members Only | Members Only | Members Only |
| Measured Knob Height Center | 1.1 mm | 0.0 mm | 1.4 mm |
| Measured Knob Height Edge | 1.2 mm | 0.0 mm | 2.2 mm |
| Grip in points = coefficient of friction * 100 CX/Gravel grip test rim width = 23.0 mm |
|||
| Wet Grip Test and Off-Road Tires (info) | |||
Conclusion
| Conclusion | |||
|---|---|---|---|
| Model | Terra Speed TR E-25 45 | P Zero Race TLR SpeedCore 40 | Gravel Thundero HD 40 |
| Full Review | Full Review | Full Review | Full Review |
| Verdict | Highly Recommended | Highly Recommended | Highly Recommended |
| Rating | 4.8 / 5 | 4.5 / 5 | 5.0 / 5 |
| Buy At | Ad Amazon.com | Ad Amazon.com | |
- Continental Terra Speed TR E-25 45
- Pirelli P Zero Race TLR SpeedCore 40
- Tufo Gravel Thundero HD 40
(100% is fastest - lightest - highest - strongest)
Pro Members get 11-point radar charts