Road Bike Tire Test: Vittoria Corsa G+ (tubular)

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  • Vittoria Corsa G+ (tubular)
Performance compared to all other road bike tires
(100% is best)
Pro Members get 11-point radar charts



Vittoria Corsa G+ (tubular) road bike tire on a rolling resistance test machine

The various versions of the Vittoria Corsa tubular road bike tires have been the most popular tubular tires for a long time. This is a test of the latest iteration of the tubular Corsa: the 2016 Corsa G+ with the new 4C G+ compound. If you're looking for a test of the clincher version of this tire go here. The Corsa G+ replaces both the Corsa SC and Corsa CX as the "all-round" tubular tire from Vittoria. An even faster Corsa Speed G+ is available as well if you're looking for a no-compromise speed tire.


Ad Buy Vittoria Corsa G+ (tubular) at Amazon.com


While the Corsa Speed G+ makes use of a single compound which is purely optimized towards speed, the 4C G+ compound is a compromise between speed, grip, durability, and puncture protection to make this a tire that should serve you well in 90% of all conditions. To offer better puncture resistance over the Corsa Speed, the Corsa G+ comes with a Kevlar reinforced Corespun K casing that provides better all-round puncture protection.


This is only the second tubular tire I've tested so I'll be comparing this tire to the tubular Continental Competition (read review) and the clincher version of this tire: the Open Corsa G+ (read review). More tubular tire tests are coming soon!

Manufacturer Specifications


Manufacturer Specifications
Brand Vittoria
Model Corsa G+ (tubular)
Year 2016
Tire Type Tubular
Supplied By Bought in store
New or Used New
Mileage 0 km
Price Range Very High
Buy At Ad Amazon.com
Manufacturer part number 111.1CX.00.25.411TG
TPI 320
Compound 4C G+ Isotech
Bead Tubular
ETRTO 28x25
Size Inch 28"
Specified Width (mm) 25
Specified Weight 280 grams
Max Air Pressure (psi) 175
Made In Members Only
Available Sizes 28x23
28x25
28x28

Vittoria Corsa G+ (tubular) Test Results

Vittoria Corsa G+ (tubular) road bike tire on a rolling resistance test machine

Size, Weight, and Thickness Measurements


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Size, Weight and Thickness Measurements
Specified Weight 280 grams
Measured Weight 281 grams
System Adjusted Weight
(tire + tubular glue)
291 grams
Measured Width 25 mm (un-round)
Measured Height 23 mm (un-round)
Total Tire Thickness Center 2.3 mm
Total Tire Thickness Sidewall Members Only
Unmounted Casing Width No Data
Unmounted Tread Width Members Only
Tread Cover (Tread / Casing Ratio) No Data
All size measurements are taken at an air pressure of 100 psi / 6.9 bars on a 21.5 OD rim.

The specified weight of the 25x28 version of this tire is 280 grams, my tire weighed in pretty much spot on at 281 grams. The measured width and height at an air pressure of 100 psi / 6.9 bars comes in at 25 mm and 23 mm respectively.


cut open Vittoria Corsa G+ showing inside of tire

After cutting the tire open, it's interesting to note that the Corsa comes with a latex inner tube while the Continental Competition comes with a thin butyl tube. The use of a latex inner tube should lower the rolling resistance a bit more compared to a butyl tube. The thickness of the tread part of the tire comes in at 2.3 mm, the sidewalls have a thickness of 0.65 mm.

Rolling Resistance Test Results


Rolling Resistance Test Results
Inner Tube Tubular
Measured Width 25 mm (un-round)
Rolling Resistance
Real tire width in mm:
22-24 = 132 psi/9.1 bar
25-27 = 120 psi/8.3 bar
28-29 = 108 psi/7.4 bar
Ultra High Air Pressure

(120 psi / 8.3 bar)
12.3 Watts
CRR: 0.00369
Rolling Resistance
Real tire width in mm:
22-24 = 110 psi/7.6bar
25-27 = 100 psi/6.9 bar
28-29 = 90 psi/6.2 bar
Extra High Air Pressure

(100 psi / 6.9 bar)
12.8 Watts
CRR: 0.00384
Rolling Resistance
Real tire width in mm:
22-24 = 88 psi/6.1 bar
25-27 = 80 psi/5.5 bar
28-29 = 72 psi/5.0 bar
High Air Pressure

(80 psi / 5.5 bar)
Members Only
Rolling Resistance
Real tire width in mm:
22-24 = 66 psi/4.6 bar
25-27 = 60 psi/4.1 bar
28-29 = 54 psi/3.7 bar
Medium Air Pressure

(60 psi / 4.1 bar)
Members Only
The Road Bike 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.

*Tubular gluing process: Continental rim cement, two layers on rim, two layers on tire -> let dry for 24 hours. Next day: 1 layer on tire, mount tire to rim -> let dry for 72 hours. Test tire after 72 hours.


Surprisingly, rolling resistance comes in pretty much spot on to the clincher version of this tire. At an air pressure of 120 psi / 8.3 bars, rolling resistance comes in at 12.3 watts while the clincher Corsa G+ (read review) came in at 12.2 watts. As a sidenote, I should mention that the clincher Corsa was tested with a 100 grams butyl inner tube. When fitting the clincher Corsa with a latex tube just like the tubular version, rolling resistance should come in a bit lower at close to 10.7 watts at 120 psi / 8.3 bars.


When compared to the only other tubular tire that I've tested up to now, the Continental Competition (read review), the advantage the Corsa has over that tire is close to 2 watts / 15% per tire. Keep an eye on the road bike overview page to see if other tubular tires have been tested yet.

Puncture Resistance Test Results

Vittoria Corsa G+ (tubular) road bike tire on a rolling resistance test machine
Puncture Resistance Test Results (higher is better)
Total Puncture Score Tread 49 Points
Total Puncture Score Sidewall Members Only
Tread Puncture Force Sharp Needle 11 Points
Tread Puncture Force Blunt Needle No Data
Tread Total Tire Thickness 2.3 mm
Sidewall Puncture Force Sharp Needle Members Only
Sidewall Puncture Force Blunt Needle No Data
Sidewall Total Tire Thickness Members Only

Just like the clincher Corsa G+ and Continental Competition, the tubular Corsa G+ scores 11 points in the tread puncture resistance test. In the sidewall puncture test, the tubular version does score quite a bit lower at 3 points Vs 5 points for the clincher version. This lower score can be explained by the fact the clincher has a double layer of casing material over most of the sidewalls while the tubular has only a single layer at the sidewalls.

Static Grip Test Results


NOTE: Grip test data is only available on tires tested after November 2018. You can find more information about our grip test here: Introducing Grip Testing

Static Grip Test Results
Wet Grip Average No Data
Wet Grip Center No Data
Wet Grip Edge No Data
Grip in points = coefficient of friction * 100

Conclusion


  • Vittoria Corsa G+ (tubular)
Performance compared to all other road bike tires
(100% is best)

Pro Members get 11-point radar charts

The Vittoria Corsa G+ is an excellent tire if you're looking for an all-round tubular tire that should suit 90% of all conditions. In both the rolling resistance and puncture resistance tests, it performs very close to the best all-round clincher tires. Compared to its main rival, which is the Continental Competition, rolling resistance comes in 15% lower while both tires perform nearly equal in the puncture tests.


At the time of this writing, this is only the second tubular tire I've tested. I'm working on testing more tubular tires so keep an eye on the road bike overview page to see how the Corsa compares to the other (tubular) tires

Ad Buy Vittoria Corsa G+ (tubular) at Amazon.com


RATING: 5.0 / 5
TEST VERDICT:
Highly Recommended


Comments



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