CX/Gravel Tire Test: Schwalbe G-One RX Pro 50

The Schwalbe G-One RX is already well known to us, as we have tested it in the 40 and 45 mm sizes. With the current trend towards gravel bike tires with more volume, many of our Pro Members want to know if there is a significant difference between the various sizes of popular tires. This time, we will look at how the 50 mm version of the G-One RX performs in our tests and whether there are any notable differences from the smaller versions.

When we look solely at the specifications on paper, we find no differences (aside from weight) between the 40 (read our review), 45 (read our review), and 50 mm versions of the G-One RX Pro. From previous tests, we know that differences between tire sizes can be subtle and often not visible at first glance. These are small details where we see that the larger versions, for example, have a thicker rubber layer or offer greater knob height.

Let’s go straight to the most interesting parts of this article: our test results, and find out about the differences between the 40, 45, and 50 mm G-One RX Pro.

Manufacturer Specifications

Manufacturer Specs
Brand	Schwalbe
Model	G-One RX Pro
Year	2025
Supplied By	Bought in store
New or Used	New
Mileage	0 km
Price Range	High
Buy At
Manufacturer part number	11654578
EAN	4026495945943
TPI
Compound	Addix Race
Bead	Folding
ETRTO	50-622
Specified Weight	615 grams
Max Air Pressure (psi)	50
Made In	Pro Data
Available Sizes	40-622 (700x40c) 45-622 (700x45c) 50-622 (700x50c)

Schwalbe G-One RX Pro 50 Test Results

Size, Weight, and Thickness Measurements

Size, Weight, and Thickness Measurements
Specified Weight	615 grams
Measured Weight	657 grams
Measured Width Casing	48 mm (un-round)
Measured Width Tread	50 mm
Measured Height	46 mm (un-round)
Measured Knob Height Center	2.2 mm
Measured Knob Height Edge	3.1 mm
Measured Total Thickness Center (excluding knobs)	2.10 mm
Measured Total Thickness Sidewall	Pro Data
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)	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 (35 psi / 2.4 bar)	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 (28 psi / 1.9 bar)	19.4 Watts CRR: 0.00582
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)	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)
Total Puncture Score Tread	32 Points
Total Puncture Score Sidewall	Pro Data
Tread Puncture Force Sharp Needle	Pro Data
Tread Puncture Force Blunt Needle	Pro Data
Tread Total Tire Thickness	2.10 mm
Sidewall Puncture Force Sharp Needle	Pro Data
Sidewall Puncture Force Blunt Needle	Pro Data
Sidewall Total Tire Thickness	Pro Data

Hard Surface Static Grip Test Results

Static Grip Test Results
Wet Grip Average	57 Points
Wet Grip Center	Pro Data
Wet Grip Edge	Pro Data
Measured Knob Height Center	2.2 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

As we have seen with more gravel bike tires, the larger versions of the Schwalbe G-One RX Pro roll slower than the smaller versions. We also see an increase in knob heights, with the larger versions featuring higher knobs, meaning you not only get more volume but also a tire better suited to somewhat heavier conditions.

When we compare the RX Pro to competing 45-50 mm tires, we see strong performance but weak wet grip on a hard surface. We therefore see the RX Pro as a true off-road tire, and the least suitable for asphalt use among the 50 mm gravel bike tires we have tested so far.

Compare the 40, 45, and 50 mm Schwalbe G-One RX Pro on our comparison section.

RATING: 4.5 / 5
TEST VERDICT: Highly Recommended

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