Road Bike Tire Test: Veloflex Record (silica compound)

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  • Veloflex Record (silica compound)
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)
Pro Members get 9-point radar charts

Veloflex Record (silica compound) road bike tire on a rolling resistance test machine

Veloflex renewed all their tires in Q3 2020 and the Record now makes use of a "natural rubber and silica" compound instead of the "natural rubber exclusive" compound that was used before Q3 2020. The use of silica increases wet grip but it comes at the cost of a 10-15% increase in rolling resistance.

The Veloflex Record is a time-trial/track tire made with only one goal in mind: break records. The specifications, weight, and thickness measurements immediately make it clear that breaking speed records is indeed the sole intention of the Veloflex Record; this is the lightest and thinnest tire we've ever had in our hands.


Ad Buy Veloflex Record (silica compound) at Amazon.com


Although the Veloflex Record is the lightest and thinnest tire we know of, we know from experience that simply making a tire thinner and lighter doesn't automatically result in the fastest tire on earth. What's more important is that the actual materials the tire is made of have a low rolling resistance; if you start with high rolling resistance materials it won't be enough to beat the competition.


The Veloflex Record consists of a thin 350 TPI corespun casing with a very thin (~0.5 mm) tread glued on without any anti-puncture strip or other protective materials. This tire has just the bare minimum of materials to function as a tire and last for a couple of 100 miles when ridden on asphalt. You definitely should not expect this tire to last 1000's of miles.


We usually test the 25 or 26 mm wide version of road bike tires but the Veloflex is only available in the 23-622 size. Keep this in mind when comparing as a 25 mm wide version probably would have performed a bit better in the rolling resistance tests (~ 5%).

Manufacturer Specifications


Manufacturer Specifications
Brand Veloflex
Model Record (silica compound)
Year 2021
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 RC23G
EAN8033959674833
TPI 350
Compound Natural rubber silica
Bead Folding
ETRTO 23-622
Size Inch 28"
Specified Width (mm) 23
Specified Weight 135 grams
Max Air Pressure (psi) 145
Made In Members Only
Available Sizes 23-622 (700x23c)

Veloflex Record (silica compound) Test Results

Veloflex Record (silica compound) 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 135 grams
Measured Weight 137 grams
System Adjusted Weight
(tire + inner tube (100 gr)
237 grams
Measured Width 24 mm (un-round)
Measured Height 20 mm (un-round)
Total Tire Thickness Center 0.9 mm
Total Tire Thickness Sidewall Members Only
Unmounted Casing Width 64 mm
Unmounted Tread Width Members Only
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 Conti Race28 (100gr butyl)
Rolling Resistance
140 PSI / 9.7 Bar
Not Tested
Rolling Resistance
120 PSI / 8.3 Bar
9.0 Watts
CRR: 0.00270
Rolling Resistance
100 PSI / 6.9 Bar
9.8 Watts
CRR: 0.00294
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.

Puncture Resistance Test Results

Veloflex Record (silica compound) road bike tire on a rolling resistance test machine
Puncture Resistance Test Results (higher is better)
Total Puncture Score Tread 21 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 0.9 mm
Sidewall Puncture Force Sharp Needle Members Only
Sidewall Puncture Force Blunt Needle Members Only
Sidewall Total Tire Thickness Members Only

Conclusion


  • Veloflex Record (silica compound)
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)

Pro Members get 9-point radar charts

Even though the Veloflex Record has a total thickness of just 0.9 mm at the center of the tread, which is less than the sidewall thickness of some other tires, it isn't able to outperform heavier, thicker, and more puncture-resistant tires in the rolling resistance tests. We must add that the 23 mm size is a bit of a handicap, the 25 mm will probably perform somewhere around 5% better at the same air pressures.


The standard test of clincher road bike tires is done with a 100 grams Continental Race28 inner tube which is the fastest "standard" butyl tube out there. We also tested the Record with a 78 grams Vittoria Latex tube, and rolling resistance came in at 7.3 watts at 120 psi / 8.3 bars. 7.3 watts isn't enough to beat the tubeless Corsa Speed G+ 2.0 (read our review) or Michelin Power Time Trial (read our review) with a latex tube (both 7.0 watts). A 25 mm wide version of the Record would probably be on par with those tires when fitted with a latex tube.


We feel the Corsa Speed G+ 2.0 and Michelin Power Time Trial are much more robust tires for outdoor use. We only recommend the Veloflex Record if you somehow need the absolute lowest weight or for indoor track use.

Ad Buy Veloflex Record (silica compound) at Amazon.com


RATING: 3.5 / 5
TEST VERDICT:
Recommended


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