MTB Tire Test: Continental Dubnital Race Rapid 29x2.2

The Dubnital is a new mountain bike tire from Continental, available in several versions that differ in casing, compound, color, and size. We have already tested the Dubnital Race Rapid in the 29x2.4 size with black sidewalls. This time, we're going to take a look at the 29x2.2 size with the same casing, compound, and sidewall color, allowing us to compare these sizes on equal ground.

We'll keep this article brief, but our test results below provide all the necessary details. For more information about the Dubnital and Continental's other new tires that replace the Race King, Cross King, and Mountain King, please refer to our original review of the 29x2.4 Dubnital, which offers a more comprehensive introduction.

Something worth mentioning here is that the Dubnital 29x2.2 isn't available in as many different versions as the 29x2.4 size: it's only available with the Rapid Compound, either in the Race or Trail casing. There are also no transparent sidewall versions; only black sidewalls are available. That makes sense as we expect most people looking for the 2.2 size don't need the Grip compound and want maximum speed.

Let's jump over to the test results to find out how the Dubnital Race Rapid 29x2.2 compares to the Dubnitial Race Rapid 29x2.4.

Manufacturer Specifications

Manufacturer Specs
Brand	Continental
Model	Dubnital Race Rapid
Year	2025
Supplied By	Bought in store
New or Used	New
Mileage	0 km
Price Range	High
Buy At
Manufacturer part number	01020410000
EAN	4019238402797
TPI	3/330
Compound	Rapid Compound
Bead	Folding
ETRTO	55-622
Size Inch	29"
Width Inch	2.20
Specified Weight	610 grams
Max Air Pressure (psi)	58
Made In	Pro Data
Available Sizes	29x2.40 29x2.20

Continental Dubnital Race Rapid Test Results

Size, Weight, and Thickness Measurements

Size, Weight, and Thickness Measurements
Specified Weight	610 grams
Measured Weight	609 grams
Measured Width Carcass	52 mm (un-round)
Measured Width Tread	54 mm
Measured Height	52 mm (un-round)
Measured Knob Height Center	2.4 mm
Measured Knob Height Edge	3.9 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)	20.2 Watts CRR: 0.00606
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	44 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	69 Points
Wet Grip Center	Pro Data
Wet Grip Edge	Pro Data
Measured Knob Height Center	2.4 mm
Measured Knob Height Edge	3.9 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 29x2.2 Continental Dubnital performs just as strongly as the 29x2.4 size (read our review). It's a bit lighter than the larger versions, and it rolls just a hair faster than the 29x2.4 size. We hoped the 29x2.2 Dubnital would roll a bit faster, as we still see that rolling resistance has increased over the old Race King Protection.

However, the overall performance of the Dubnital is simply outstanding. Even when compared to competing tires from top manufacturers, you can't go wrong with the Dubnital Race Rapid, unless you require the absolute fastest rolling tires.

The 29x2.2 is a good choice when you ride a lot on paved or other hard surfaces and don't need the larger volume that the 29x2.4 size provides.

Compare the 29x2.2 and 29x2.4 Continental Dubnital Race Rapid on our comparison section.

RATING: 5.0 / 5
TEST VERDICT: Highly Recommended

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