Road Bike Tire Test: Pirelli P Zero Velo Race TLR SL

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Contents and Test Summary

  1. Introduction
  2. Manufacturer Specifications
  3. Size, Weight, Thickness
  4. Rolling Resistance: 10.3 watts
  5. Puncture Resistance: 8 tread / 7 sidewall
  6. Conclusion: 4.0 / 5 Recommended
  7. Comments
  • Pirelli P Zero Velo Race TLR SL
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)

Pirelli P Zero Velo Race TLR SL road bike tire on a rolling resistance test machine

The Pirelli P Zero Race TLR SL is a faster and lighter version of the Pirelli P Zero Velo Race TLR (read our review). To make it faster and lighter, Pirelli simply removed the puncture strip under the tread and also made the tread a little thinner.


All other aspects of these tires are essentially the same as both the Race TLR and Race TLR SL come with a tubeless-ready 120 TPI casing and the same SmartEVO compound. The SmartEVO compound is still a balanced compound and not solely optimized to provide the lowest possible rolling resistance.


The Race TLR SL is available in the 24-622, 26-622, and 28-622 sizes. The Race TLR is also available in the 30-622 size but we think it's a good choice to drop that size for the SL as this tire is more targeted towards the performance crowd.

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Manufacturer Specifications


Manufacturer Specifications
Brand Pirelli
Model P Zero Velo Race TLR SL
Year 2020
Tire Type Tubeless
Supplied By Bought in store
New or Used New
Mileage 0 km
Price Range High
Buy At
Manufacturer part number 3905500
EAN8019227390551
TPI 120
Compound SmartEvo
Bead Folding
ETRTO 26-622
Size Inch 28"
Width 26
Specified Weight 245 grams
Max Pressure 109
Made In France
Available Sizes 24-622 (700x24c)
26-622 (700x26c)
28-622 (700x28c)

Pirelli P Zero Velo Race TLR SL Test Results

Pirelli P Zero Velo Race TLR SL 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 245 grams
Measured Weight 247 grams
System Adjusted Weight
(tire + valve + rim seal)
267 grams
Measured Width 27 mm
Measured Height 23 mm
Total Tire Thickness Center 2.4 mm
Total Tire Thickness Sidewall 1.1 mm
Unmounted Casing Width 63 mm
Unmounted Tread Width 28 mm
All size measurements are taken at an air pressure of 100 psi / 6.9 bars on a 17.8 mm inner width rim.

Rolling Resistance Test Results


Rolling Resistance Test Results
Inner Tube None (20 ml sealant)
Rolling Resistance
140 PSI / 9.7 Bar
Not Tested
Rolling Resistance
120 PSI / 8.3 Bar
10.3 Watts
CRR: 0.00309
Rolling Resistance
100 PSI / 6.9 Bar
11.3 Watts
CRR: 0.00339
Rolling Resistance
80 PSI / 5.5 Bar
12.9 Watts
CRR: 0.00387
Rolling Resistance
60 PSI / 4.1 Bar
15.6 Watts
CRR: 0.00468
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

Pirelli P Zero Velo Race TLR SL road bike tire on a rolling resistance test machine
Puncture Resistance Test Results (higher is better)
Puncture Resistance Tread 8 Points
Puncture Resistance Sidewall 7 Points

Conclusion


  • Pirelli P Zero Velo Race TLR SL
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)

The Pirelli P Zero Velo Race TLR SL offers a low rolling resistance but it comes at the cost of a greatly decreased puncture resistance of the tread. When we compare it to the regular Race TLR (read our review) that comes with a puncture strip and a 25% thicker tread, rolling resistance isn't all that much lower while puncture resistance of the tread drops from 12 points to 8 points for the SL.


We think you'll have a hard time justifying the use of the SL over the regular Race TLR as the performance of these tires is this close. This is a good tire, but we rate the SL a bit lower at 4.0 out of 5 as we think the regular Race TLR is a more balanced tire. Compare the Race TLR SL against the Race TLR side by side.

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RATING: 4.0 / 5
TEST VERDICT:
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