CX/Gravel Tire Comparison:
CST E-Series Reach 37 2015 vs
Schwalbe Marathon E-Plus 37 2020
Contents and Test Summary
- Manufacturer Specifications
- Size and Weight Measurements
- Rolling Resistance Test Results
- Puncture Resistance Test Results
- Static Grip Test Results
- Conclusion
- CST E-Series Reach 37 *
- Schwalbe Marathon E-Plus 37
* Grip test data not available
Performance compared to all other touring bike tires
(100% is best)
(100% is best)
Pro Members get 11-point radar charts
Manufacturer Specifications
| Manufacturer Specifications | ||
|---|---|---|
| Brand | CST | Schwalbe |
| Model | E-Series Reach 37 | Marathon E-Plus 37 |
| Year | 2015 | 2020 |
| Supplied By | Supplied by Continental | Bought in store |
| Full Review | Full Review | Full Review |
| New or Used | New | New |
| Mileage | 0 km | 0 km |
| Price Range | Med | High |
| Buy At | Ad Amazon.com | |
| Manufacturer Part Number | 11159077 | |
| EAN | 4026495871013 | |
| TPI | - | 67 |
| Compound | Addix E | |
| Bead | Wire | Wire |
| ETRTO | 37-622 | 37-622 |
| Specified Weight | 734 grams | 930 grams |
| Min Air Pressure | 50 psi | 60 psi |
| Max Air Pressure | 75 psi | 85 psi |
| Made In | Pro Data | Pro Data |
| Available Sizes | 37-622 (28x1.40) | 37-622 (28x1.40) 40-622 (28x1.50) 47-622 (28x1.75) 50-622 (28x2.00) 55-622 (28x2.15) 50-584 (27.5x2.00) |
| Image 1 |  |  |
| Image 2 |  |  |
| Image 3 |  |  |
| Image 4 | Not Available | Not Available |
Size and Weight Measurements
| Size and Weight Measurements | ||
|---|---|---|
| Model | E-Series Reach 37 | Marathon E-Plus 37 |
| Specified Weight | 734 grams | 930 grams |
| Measured Weight | 734 grams | 911 grams |
| Measured Width Casing | 37 mm (un-round) | 32 mm (un-round) |
| Measured Width Tread | mm | mm |
| Measured Height | Pro Data | Pro Data |
| Tire Circumference | Pro Data | Pro Data |
| Measured Knob Height Center | 0.0 mm | 0.0 mm |
| Measured Knob Height Edge | 0.0 mm | 0.0 mm |
| Measured Casing Thickness Center | 4.40 mm | 8.80 mm |
| Measured Total Thickness Sidewall | Pro Data | Pro Data |
| All size measurements are taken at high air pressure on a 18 mm inner width rim. | ||
Rolling Resistance Test Results
| Rolling Resistance Test Results | ||
|---|---|---|
| Model | E-Series Reach 37 | Marathon E-Plus 37 |
| Spin Up Video | No Video | YouTube |
| Inner Tube | Conti Tour 28 (170 gr butyl) | Conti Tour 28 (170 gr butyl) |
| Measured Width | 37 mm | 32 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 |
Pro Data | Pro Data |
| 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 |
Pro Data | Pro Data |
| 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 |
32.9 Watts CRR: 0.00986 (36 psi / 2.6 bar) | 30.3 Watts CRR: 0.00908 (44 psi / 3.0 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 |
Pro Data | Pro Data |
| 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. |
||
Puncture Resistance Test Results
| Puncture Resistance Test Results (higher is better) | ||
|---|---|---|
| Model | E-Series Reach 37 | Marathon E-Plus 37 |
| Total Puncture Score Tread | 61 Points | 163 Points |
| Total Puncture Score Sidewall | Pro Data | Pro Data |
| Tread Puncture Force Sharp Needle | Pro Data | Pro Data |
| Tread Puncture Force Blunt Needle | Pro Data | Pro Data |
| Tread Total Tire Thickness | 4.4 mm | 8.8 mm |
| Sidewall Puncture Force Sharp Needle | Pro Data | Pro Data |
| Sidewall Puncture Force Blunt Needle | Pro Data | Pro Data |
| Sidewall Total Tire Thickness | Pro Data | Pro Data |
Static Grip Test Results
| Static Grip Test Results (higher is better) | ||
|---|---|---|
| Model | E-Series Reach 37 | Marathon E-Plus 37 |
| Wet Grip Average | No Data | 72 Points |
| Wet Grip Center | Pro Data | Pro Data |
| Wet Grip Edge | Pro Data | Pro Data |
| Measured Knob Height Center | 0.0 mm | 0.0 mm |
| Measured Knob Height Edge | 0.0 mm | 0.0 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 | E-Series Reach 37 | Marathon E-Plus 37 |
| Full Review | Full Review | Full Review |
| Verdict | Recommended | Highly Recommended |
| Rating | 3.0 / 5 | 5.0 / 5 |
| Buy At | Ad Amazon.com | |
- CST E-Series Reach 37 *
- Schwalbe Marathon E-Plus 37
* Grip test data not available
Performance compared to all other touring bike tires(100% is fastest - lightest - thickest - strongest)
Pro Members get 11-point radar charts