CX/Gravel Tire Test: Schwalbe G-One Ultrabite

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Contents and Test Summary

  1. Introduction
  2. Manufacturer Specifications
  3. Size, Weight, Thickness
  4. Rolling Resistance: 29.8 watts
  5. Puncture Resistance: 8 tread / 5 sidewall
  6. Conclusion: 3.0 / 5 Recommended
  7. Comments
  • Schwalbe G-One Ultrabite
Performance compared to all other CX/Gravel tires
(100% is fastest - lightest - highest - strongest)

Schwalbe G-One Ultrabite road bike tire on a rolling resistance test machine

The G-One series is Schwalbe's line of gravel tires. At the time of writing, the G-One line consists of 4 tires from fast tread to aggressive tread: G-One Speed, G-One Allround, G-One Bite, and G-One Ultrabite. At the moment only the Ultrabite version is available with Schwalbe's latest Addix compound. We'll test the other versions as soon as they become available with the new Addix compound.


Ad Buy Schwalbe G-One Ultrabite at Amazon.com


The G-One Ultrabite has aggressive knobs that we would expect more from a mountain bike tire. We can't imagine that you would want to go even more aggressive on a gravel bike because you might be better off grabbing a mountain bike.


The G-One Ultrabite in size 40-622 that we have tested is composed of a MicroSkin TLE casing and the Addix SpeedGrip compound which we also know from Schwalbe's mountain bike tires. The TLE casing has reinforced sidewalls which makes this tire suitable for tubeless use.


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Manufacturer Specifications


Manufacturer Specs
Brand Schwalbe
Model G-One Ultrabite
Year 2020
Supplied By Bought in store
New or Used New
Mileage 0 km
Price Range High
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Manufacturer part number 11654035.01
EAN4026495873802
TPI 127
Compound Addix SpeedGrip
Bead Folding
ETRTO 40-622
Specified Weight 480 grams
Max Pressure 70
Made In Indonesia
Available Sizes 40-622 (700x38)

Schwalbe G-One Ultrabite Test Results

Schwalbe G-One Ultrabite  mountain bike tire on a rolling resistance test machine

Size, Weight, and Thickness Measurements


Size, Weight, and Thickness Measurements
Specified Weight 480 grams
Measured Weight 564 grams
Measured Width Casing 37 mm
Measured Width Tread 41 mm
Measured Height 36 mm
Measured Knob Height Center 2.3 mm
Measured Knob Height Edge 3.3 mm
Measured Total Thickness Sidewall 0.95 mm
Measured Total Thickness Center (excluding knobs) 2.30 mm
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 Conti Cross28 (160 gr)
Measured Width 37 mm
Rolling Resistance
Real tire width in mm:
30-32 = 66 psi/4.6 bar
33-35 = 60 psi/4.1 bar
36-40 = 54 psi/3.7 bar
High Air Pressure
27.3Watts
CRR: 0.00818
Rolling Resistance
Real tire width in mm:
30-32 = 55 psi/3.8 bar
33-35 = 50 psi/3.4 bar
36-40 = 45 psi/3.1 bar
Medium Air Pressure
28.0 Watts
CRR: 0.00839
Rolling Resistance
Real tire width in mm:
30-32 = 44 psi/3.0 bar
33-35 = 40 psi/2.8 bar
36-40 = 36 psi/2.6 bar
Low Air Pressure
29.8 Watts
CRR: 0.00893
Rolling Resistance
Real tire width in mm:
30-32 = 33 psi/2.3 bar
33-35 = 30 psi/2.1 bar
36-40 = 27 psi/1.9bar
Extra Low Air Pressure
33.3 Watts
CRR: 0.00998
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

Schwalbe G-One Ultrabite  mountain bike tire on a rolling resistance test machine
Puncture Resistance Test Result (higher is better)
Puncture Resistance Tread 8 Points
Puncture Resistance Sidewall 5 Points

Conclusion


  • Schwalbe G-One Ultrabite
Performance compared to all other CX/Gravel tires
(100% is fastest - lightest - highest - strongest)

The G-One is a very aggressive gravel bike tire. Unfortunately, the tire is not as fast as what we were used to from the Schwalbe tires from the past. The tread is very aggressive, if you are mainly looking for a lot of grip on your gravel bike, these are probably some of the best.


The weight is very disappointing from this tire, specified is an already high 480 grams but our tire weighs 564 grams which we would certainly return if we used them for any reason other than this test. We rate this tire a 3 out of 5 mainly because of the aggressive tread profile that is unique in this size.


Ad Buy Schwalbe G-One Ultrabite at Amazon.com


RATING: 3.0 / 5
TEST VERDICT:
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