MTB Tire Test: Schwalbe G-One RX Pro (black) 55 29x2.15

Gravel bike tires keep getting bigger and bigger, and it's no surprise that Schwalbe launched a 55 mm version of their G-One RX Pro gravel bike tire. Even though this is a gravel bike tire, we've moved it to the MTB section so we can compare the G-One RX Pro to similar-sized mountain bike tires.

The G-One RX is a relatively new addition to Schwalbe's G-One line of gravel bike tires, and, together with the R and RS, it is available in the "Pro" version, which performs excellently in our tests. We have already tested the RX in the previously released 40, 45, and 50 mm sizes, and we've known for some time that the RX nicely complements the R and RS. You really don't need more than these three tires for 90% of gravel bike conditions.

We previously tested the 55 mm version of the G-One RS Pro, and we are now waiting for the 55 mm version of the G-One R. The RS performed well in the 55 mm size when we compared it with mountain bike tires of a similar size, but its strongest point was the unique tread pattern of the RS. The RX has a more standard tread pattern, so there are many more mountain bike tires with similar tread patterns available.

Like the 55 mm G-One RS, the 55 mm RX is only available in a fully black version. The smaller versions are available in both black and transparent, but it wouldn't surprise us if Schwalbe later releases a transparent sidewall version of the 55 mm RX Pro.

Let's quickly take a look at how the 55 mm G-One RX Pro performs when we compare it to the best-performing mountain bike tires.

Manufacturer Specifications

Manufacturer Specs
Brand	Schwalbe
Model	G-One RX Pro (black) 55
Year	2026
Supplied By	Bought in store
New or Used	New
Mileage	0 km
Price Range	High
Buy At
Manufacturer part number	11654650
EAN	4026495957847
TPI	67
Compound	Addix Race
Bead	Folding
ETRTO	55-622
Size Inch	29"
Width Inch	2.15
Specified Weight	705 grams
Max Air Pressure (psi)	50
Made In	Pro Data
Available Sizes	40-622 (700x40c) 45-622 (700x45c) 50-622 (700x50c) 55-622 (700x55c)

Schwalbe G-One RX Pro (black) 55 Test Results

Size, Weight, and Thickness Measurements

Size, Weight, and Thickness Measurements
Specified Weight	705 grams
Measured Weight	731 grams
Measured Width Carcass	52 mm (un-round)
Measured Width Tread	54 mm
Measured Height	Pro Data
Tire Circumference	Pro Data
Measured Knob Height Center	2.0 mm
Measured Knob Height Edge	3.1 mm
Measured Total Thickness Center (excluding knobs)	2.5 mm
Measured Total Thickness Sidewall	Pro Data
All size measurements are taken at an air pressure of 35 psi / 2.4 bars on a 17.8 mm inner width rim.

Rolling Resistance Test Results

Rolling Resistance Test Results
Inner Tube	None (40 ml sealant)
Measured Width	52 mm
Rolling Resistance Real tire width in mm: 47-50 = 42 psi/2.9 bar 51-55 = 38 psi/2.6 bar 56-60 = 34 psi/2.3 barHigh Air Pressure (38 psi / 2.6 bar)	Pro Data
Rolling Resistance Real tire width in mm: 47-50 = 35 psi/2.4 bar 51-55 = 32 psi/2.2 bar 56-60 = 29 psi/2.0 barMedium Air Pressure (32 psi / 2.2 bar)	Pro Data
Rolling Resistance Real tire width in mm: 47-50 = 28 psi/1.9 bar 51-55 = 25 psi/1.7 bar 56-60 = 23 psi/1.6 barLow Air Pressure (25 psi / 1.7 bar)	19.4 Watts CRR: 0.00582
Rolling Resistance Real tire width in mm: 47-50 = 21 psi/1.4 bar 51-55 = 19 psi/1.3 bar 56-60 = 17 psi/1.2 barExtra Low Air Pressure (19 psi / 1.3 bar)	Pro Data
The MTB 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	33 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	2.5 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	62 Points
Wet Grip Center	Pro Data
Wet Grip Edge	Pro Data
Measured Knob Height Center	2.0 mm
Measured Knob Height Edge	3.1 mm
Grip in points = coefficient of friction * 100 MTB grip test rim width = 30.0 mm
Wet Grip Test and Off-Road Tires (info)

Conclusion

The 55 mm G-One RX Pro rolls just as fast as the 55 mm RS Pro that we tested earlier, indicating that the tread pattern of the G-One Pro tires does not make a significant difference on hard surfaces. However, when we compare the 55 mm RX Pro with the smaller sizes, the trend is clear: the larger versions roll slower than the smaller versions on hard surfaces.

The G-One RX Pro is a solid all-round tire because it has no major weaknesses besides the low hard-surface center grip. The biggest issue we see with the 55 mm G-One RX Pro is competition from mountain bike tires with a similar tread pattern and the same volume in the 2.2 or 2.25 size.

If you're looking for 55 mm gravel bike tires, take a good look at our mountain bike overview, or use Pro View to compare mountain bike and gravel bike tires in the same overview.

RATING: 4.3 / 5
TEST VERDICT: Highly Recommended

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