CX/Gravel Tire Test: Vittoria Corsa N.EXT TLR 34

NOTE: This Vittoria Corsa N.EXT TLR 34 was tested as a CX-Gravel tire at low air pressures. You can also find tests of the 26 mm Vittoria Corsa N.EXT TLR and 28 mm Vittoria Corsa N.EXT TLR in the road bike section.

Although the Vittoria Corsa N.EXT is technically a road bike tire, it's also very suitable for use on gravel bikes due to the availability of some larger sizes. The Corsa N.EXT TLR is available in six sizes ranging from 24-622 to 34-622 in 2 mm increments. We see the 32-622 and 34-622 as the best options for light off-roading and the 30-622 and smaller sizes for pure road bike use.

Ad Buy Vittoria Corsa N.EXT TLR at Amazon.com

We've already tested the 26 mm and 28 mm versions of the Corsa N.EXT TLR and found them to be excellent road bike tires with an emphasis on puncture resistance and wet grip. We also tested the 32 mm version at lower air pressures as used on CX/Gravel bikes. We saw the same performance as the smaller sizes with even better grip due to the bigger size and the lower air pressure we use while testing tires that fit the CX/Gravel category.

We see the Corsa N.EXT do well as a fast gravel bike tire as wet grip and puncture resistance are far more critical for a large volume road bike tire used during the winter months, or gravel bikes that see the occasional off-road moment here and there.

We've already gone more in-depth about the Vittoria Corsa N.EXT in the 26 and 28 mm tests, so let's jump over to the test results and see how the 34-622 Corsa N.EXT TLR does when we compare it to the 32-622 Corsa N.EXT TLR and some other 32/34 mm road bike tires and a bunch of more traditional gravel bike tires.

Manufacturer Specifications

Manufacturer Specs
Brand	Vittoria
Model	Corsa N.EXT TLR
Year	2023
Supplied By	Bought in store
New or Used	New
Mileage	0 km
Price Range	High
Buy At	Ad Amazon.com
Manufacturer part number	11A00403
EAN	8022530026970
TPI	100
Compound	Graphene +Silica
Bead	Folding
ETRTO	34-622
Specified Weight	395 grams
Max Air Pressure (psi)	80
Made In	Members Only
Available Sizes	24-622 (700x24c) 26-622 (700x26c) 28-622 (700x28c) 30-622 (700x30c) 32-622 (700x32c) 34-622 (700x34c)

Vittoria Corsa N.EXT TLR 34 Test Results

Size, Weight, and Thickness Measurements

Size, Weight, and Thickness Measurements
Specified Weight	395 grams
Measured Weight	348 grams
Measured Width Casing	33 mm (un-round)
Measured Width Tread	30 mm
Measured Height	31 mm (un-round)
Measured Knob Height Center	0.0 mm
Measured Knob Height Edge	0.0 mm
Measured Total Thickness Center (excluding knobs)	3.10 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	33 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 (60 psi / 4.1 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 (50 psi / 3.4 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 (40 psi / 2.8 bar)	17.2 Watts CRR: 0.00516
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 (30 psi / 2.1 bar)	20.6 Watts CRR: 0.00618
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	53 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	3.10 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	77 Points
Wet Grip Center	Members Only
Wet Grip Edge	Members Only
Measured Knob Height Center	0.0 mm
Measured Knob Height Edge	0.0 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

Our sample of the 34-622 Vittoria Corsa N.EXT TLR performs very similarly to the 26, 28, and 34 mm versions we tested previously. We see a slight difference compared to the 34-622 version, as our 32-622 sample performs a bit better in the puncture tests, while rolling just a bit slower. We guess some of the difference is the margin of error of the tests and normal variation between samples and sizes.

The average wet grip of the 34-622 comes in the same as the 32-622, but we see a slightly different distribution of the grip levels between the center and edges of the tire. The 34-622 version shows slightly less center grip but offers more edge grip. We again attribute this to the margin of error of the tests and the variation between samples. Another factor that might contribute here is the tire profile reinforced by the dual compound nature of the Corsa N.EXT; a bigger portion of the softer edge compound might be in contact with the test surface in the edge test.

Compared to other popular road bike tires available in the 32 mm and up sizes, the Corsa N.EXT TLR performs stronger in the puncture resistance tests and very strong in the wet grip tests. It rolls slower than the fastest tires, which trade strength and grip for rolling performance.

Ad Buy Vittoria Corsa N.EXT TLR at Amazon.com

RATING: 4.5 / 5
TEST VERDICT: Highly Recommended

Comments