Road Bike Tire Test: Zipp Tangente Speed

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  • Zipp Tangente Speed
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)
Pro Members get 9-point radar charts

Zipp Tangente Speed road bike tire on a rolling resistance test machine

Zipp is mostly known for producing high-quality wheels and components. When you own a set of Zipp aero wheels, it might be interesting to pair these with Zipp tires as they claim the aerodynamic profile of their tires is optimized for use with their wheels. Of course, when improving aerodynamic performance, we shouldn't forget about rolling resistance; you don't want to reduce aerodynamic drag at the cost of rolling resistance and end up going backward.


Ad Buy Zipp Tangente Speed at Amazon.com


The Zipp Tangente Speed is Zipp's pure racing tire for time-trials in dry weather conditions. The Tangente Speed comes with an ultra-thin 220 TPI casing, no puncture protective layer under the tread, and a minimal amount of rubber on top. The Tangente Speed can best be compared to other ultra-fast racing/time-trial tires like the Continental Grand Prix SuperSonic (read review) and Pirelli P Zero Velo TT (read review).


The Tangente Speed is available in both a 23 and 25 mm wide version. If you're looking for a more all-round tire, Zipp also offers the Tangente Course (read review) that comes with a stronger 120 TPI casing, better puncture protection, and a thicker layer of rubber on top of the tire.

Manufacturer Specifications


Manufacturer Specifications
Brand Zipp
Model Tangente Speed
Year 2017
Tire Type Tubetype (clincher)
Supplied By Bought in store
New or Used New
Mileage 0 km
Price Range High
Buy At Ad Amazon.com
Manufacturer part number 00.1918.192.020
TPI 220
Compound
Bead Folding
ETRTO 25-622
Size Inch 28"
Width 25
Specified Weight 0 grams
Max Pressure 145
Made In Members Only
Available Sizes 23-622 (700x23C)
25-622 (700x25C)

Zipp Tangente Speed Test Results

Zipp Tangente Speed 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 0 grams
Measured Weight 190 grams
System Adjusted Weight
(tire + inner tube (100 gr)
290 grams
Measured Width 26 mm (un-round)
Measured Height 22 mm (un-round)
Total Tire Thickness Center 2.1 mm
Total Tire Thickness Sidewall Members Only
Unmounted Casing Width No Data
Unmounted Tread Width No Data
All size measurements are taken at an air pressure of 100 psi / 6.9 bars on a 17.8 mm inner width rim.

Weight. Zipp doesn't appear to provide a specified weight for their tires. My sample of the 700x25C version of the Tangente Speed puts 190 grams on the scale. The Continental SuperSonic and Pirelli Velo TT are a bit lighter at 179 and 163 grams respectively.


Size. On my 17C rim, inflated to an air pressure of 100 psi / 6.9 bars, the Speed measures 26 mm wide and 22 mm high.


Tire Thickness. The Tangente Speed has a maximum thickness of 2.1 mm at the center of the tire which is slightly more than other time-trial tires that are often less than 2 mm thick. The sidewalls are extremely thin at 0.45 mm which can probably be attributed to the thin 220 TPI casing.

Rolling Resistance Test Results


Rolling Resistance Test Results
Inner Tube Conti Race28 (100gr butyl)
Rolling Resistance
140 PSI / 9.7 Bar
Not Tested
Rolling Resistance
120 PSI / 8.3 Bar
11.6 Watts
CRR: 0.00348
Rolling Resistance
100 PSI / 6.9 Bar
12.5 Watts
CRR: 0.00375
Rolling Resistance
80 PSI / 5.5 Bar
Members Only
Rolling Resistance
60 PSI / 4.1 Bar
Members Only
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.

At high air pressures, the Tangente Speed performs quite well in the rolling resistance tests. At the high air pressure of 120 psi / 8.3 bars, rolling resistance of the Tangente Speed comes in at a low 11.6 watts. At lower air pressures, rolling resistance of the Tangente Speed starts rising faster than similar tires which can be a disadvantage if you like to run your tires at lower air pressures.


I must admit that rolling resistance of the Tangente Speed is lower than I expected after testing the Zipp Tangente Course (read review) last week and finding out it has quite a high rolling resistance. Although rolling resistance of the Tangente Speed is good, it must be said that both the Conti SuperSonic (read review) and Pirelli Velo TT (read review) have less rolling resistance at all tested air pressures (see charts to compare).

Puncture Resistance Test Results

Zipp Tangente Speed road bike tire on a rolling resistance test machine
Puncture Resistance Test Results (higher is better)
Puncture Resistance Tread 7 Points
Puncture Resistance Sidewall Members Only

Puncture resistance is low which can be expected of a time-trial tire without a layer of puncture protection material and only a thin layer of rubber applied to the tire. The sidewalls are extremely weak with a score of just 3 points which is basically the lowest possible value in this test.

Conclusion


  • Zipp Tangente Speed
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)

Pro Members get 9-point radar charts

I didn't expect much from the Zipp Tangente Speed because last week's test of the more all-round oriented Tangente Course (read review) proved it was severely lacking in the rolling resistance department. The Tangente Speed does come a bit closer in the rolling resistance tests when compared to the time-trial tires from the leading manufacturers. As expected from a light and thin time trial-tire, it scores extremely low in both the tread and sidewall puncture tests.


If the claimed aerodynamic advantage of pairing Zipp wheels with Zipp tires is true, the Tangente Speed might actually be the best tire when paired with Zipp wheels. Unfortunately, building a wind tunnel to test that claim is a bit out of reach at this moment.

Ad Buy Zipp Tangente Speed at Amazon.com


RATING: 4.0 / 5
TEST VERDICT:
Recommended


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