CX/Gravel Tire Test: WTB Riddler TCS Light

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  • WTB Riddler TCS Light
Performance compared to all other CX/Gravel tires
(100% is fastest - lightest - highest - strongest)
Pro Members get 9-point radar charts

WTB Riddler TCS Light road bike tire on a rolling resistance test machine

The WTB Riddler is a gravel bike tire with low knobs in the middle and a row of aggressive big knobs on the side. The tread pattern makes this tire ideal for hard surfaces such as asphalt, hardpack, and gravel. The Riddler is available in the 37-622 size as well as the very large 44-622 size for gravel bikes with a lot of clearance.


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The Riddler consists of a single-ply 60 TPI tubeless-ready casing and a "Dual DNA" rubber compound. For this test, we tested the 37-622 version "TCS Light / Fast Rolling" with brown sidewalls. The Riddler is also available with black sidewalls but this should make no difference in performance.


Manufacturer Specifications


Manufacturer Specs
Brand WTB
Model Riddler TCS Light
Year 2020
Supplied By Bought in store
New or Used New
Mileage 0 km
Price Range High
Buy At Ad Amazon.com
Manufacturer part number W010-0694
TPI 60
Compound Dual DNA
Bead Folding
ETRTO 37-622
Specified Weight 465 grams
Max Pressure 55
Made In Members Only
Available Sizes 37-622 (700x37c)
44-622 (700x45c)

WTB Riddler TCS Light Test Results

WTB Riddler TCS Light  mountain bike tire on a rolling resistance test machine

Size, Weight, and Thickness Measurements


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Size, Weight, and Thickness Measurements
Specified Weight 465 grams
Measured Weight 446 grams
Measured Width Casing 35 mm (un-round)
Measured Width Tread 36 mm
Measured Height 33 mm (un-round)
Measured Knob Height Center 1.2 mm
Measured Knob Height Edge 2.8 mm
Measured Total Thickness Center (excluding knobs) 2.10 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 Conti Cross28 (160 gr)
Measured Width 35 mm (un-round)
Rolling Resistance
Real tire width in mm:
30-32 = 66 psi/4.6 bar
33-35 = 60 psi/4.1 bar
36-40 = 54 psi/3.7 bar
High Air Pressure
Members Only
Rolling Resistance
Real tire width in mm:
30-32 = 55 psi/3.8 bar
33-35 = 50 psi/3.4 bar
36-40 = 45 psi/3.1 bar
Medium Air Pressure
Members Only
Rolling Resistance
Real tire width in mm:
30-32 = 44 psi/3.0 bar
33-35 = 40 psi/2.8 bar
36-40 = 36 psi/2.6 bar
Low Air Pressure
26.6 Watts
CRR: 0.00797
Rolling Resistance
Real tire width in mm:
30-32 = 33 psi/2.3 bar
33-35 = 30 psi/2.1 bar
36-40 = 27 psi/1.9bar
Extra Low Air Pressure
31.2 Watts
CRR: 0.00935
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

WTB Riddler TCS Light  mountain bike tire on a rolling resistance test machine
Puncture Resistance Test Result (higher is better)
Puncture Resistance Tread 6 Points
Puncture Resistance Sidewall Members Only

Conclusion


  • WTB Riddler TCS Light
Performance compared to all other CX/Gravel tires
(100% is fastest - lightest - highest - strongest)

Pro Members get 9-point radar charts

The biggest advantage of the WTB Riddler is the tread with the large knobs on the side of the tire. The rolling resistance is not particularly low, but also not particularly high. The main problem with the Riddler is the low scores in the puncture resistance tests of both the tread and sidewalls. In both tests, the Riddler puts down the lowest scores of all CX/Gravel bike tires tested so far.


We give the Riddler a rating of 3 out of 5 because the performance is less but the differences are relatively small. The only deal-breaker we see now is the low puncture resistance that can be a problem if you ride a lot on gravel or experience punctures regularly. Better tires are available, please check our CX/Gravel overview page.


Ad Buy WTB Riddler TCS Light at Amazon.com


RATING: 3.0 / 5
TEST VERDICT:
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