CX/Gravel Tire Test: Schwalbe G-One R Pro (transparent) 50

When we look at the number of Schwalbe G-One Pro reviews in the last few months, it's a good indication that Schwalbe's G-One tires are the most popular tires for gravel bikes. Why do we test so many of these tires? That's because our Pro Members get a monthly vote they can spend in our tire voting system. Each month, the five most popular tires "win" and are tested in the following month.

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This time, we're going to take another look at the new G-One R Pro in the 50 mm size with transparent sidewalls. We already tested the 40 mm version with black sidewalls (read our review), and that tire turned out to be fast and a great upgrade over the previous generation "Super Race" G-One R that showed mixed results in our tests.

The 50 mm version of the G-One R Pro is only available with transparent sidewalls, just like the 35-622 size. If you want black sidewalls, you'll miss out on the 50 mm size, as black sidewalls are only available on the 40, 45, and the newly released 55 mm sizes. We'll still have to wait on a direct black vs transparent sidewall comparison until we've tested 2 of these tires in the same size.

If you want more information about the new G-One R Pro, our review of the 40 mm version (read our review) that we tested a couple of months back contains more of an introduction.

Manufacturer Specifications

Manufacturer Specs
Brand	Schwalbe
Model	G-One R Pro (transparent)
Year	2025
Supplied By	Bought in store
New or Used	New
Mileage	0 km
Price Range	High
Buy At	Ad Amazon.com
Manufacturer part number	11654587
EAN	4026495946261
TPI	67
Compound	Addix Race
Bead	Folding
ETRTO	50-622
Specified Weight	610 grams
Max Air Pressure (psi)	55
Made In	Members Only
Available Sizes	35-622 (700x35c) 40-622 (700x40c) 45-622 (700x45c) 50-622 (700x50c) 55-622 (700x55c)

Schwalbe G-One R Pro (transparent) 50 Test Results

Size, Weight, and Thickness Measurements

Size, Weight, and Thickness Measurements
Specified Weight	610 grams
Measured Weight	592 grams
Measured Width Casing	48 mm (un-round)
Measured Width Tread	50 mm
Measured Height	46 mm (un-round)
Measured Knob Height Center	2.1 mm
Measured Knob Height Edge	3.1 mm
Measured Total Thickness Center (excluding knobs)	2.30 mm
Measured Total Thickness Sidewall	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
Inner Tube	None (30 ml sealant)
Measured Width	48 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 (42 psi / 2.9 bar)	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 (35 psi / 2.4 bar)	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 (28 psi / 1.9 bar)	16.7 Watts CRR: 0.00501
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 (21 psi / 1.4 bar)	18.9 Watts CRR: 0.00567
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)
Total Puncture Score Tread	34 Points
Total Puncture Score Sidewall	Members Only
Tread Puncture Force Sharp Needle	Members Only
Tread Puncture Force Blunt Needle	Members Only
Tread Total Tire Thickness	2.30 mm
Sidewall Puncture Force Sharp Needle	Members Only
Sidewall Puncture Force Blunt Needle	Members Only
Sidewall Total Tire Thickness	Members Only

Hard Surface Static Grip Test Results

Static Grip Test Results
Wet Grip Average	58 Points
Wet Grip Center	Members Only
Wet Grip Edge	Members Only
Measured Knob Height Center	2.1 mm
Measured Knob Height Edge	3.1 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

The 50 mm G-One R Pro with transparent sidewalls performs very similarly to the 40 mm version with black sidewalls (read our review) that we tested a couple of months back. Rolling resistance and puncture resistance are nearly equal for both tires, meaning the G-One R's performance is very strong compared to other tires. It even outperforms some versions of the G-One RS, but we're fairly sure we had some weaker performing samples of the RS.

We do see a difference in the knob heights between the 40 and 50 mm versions of the G-One R Pro. We've seen it before on some other tires, and the G-One R also comes with a higher knob height on the bigger versions. It means the larger sizes not only have more volume, but also come with a more aggressive tread. Whether it's a good thing or a bad thing depends on the requirements, but it's good to know that there's more to the bigger sizes than you might think.

Another consequence of the higher knobs is reduced performance in the hard surface wet grip tests, resulting from increased flexing of the knobs under pressure. That's something you might not expect from the bigger sizes, as most people assume the bigger sizes offer better grip under all conditions. You'll trade some on-road grip for better off-road grip that the higher knobs should provide on soft surfaces, where the knobs can dig into the surface to provide grip.

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RATING: 5.0 / 5
TEST VERDICT: Highly Recommended

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