CX/Gravel Tire Comparison:
Continental Terra Speed TR 40 2021 vs
Continental Terra Speed TR E-25 40 2024




Manufacturer Specifications


Manufacturer Specifications
Brand ContinentalContinental
Model Terra Speed TR 40Terra Speed TR E-25 40
Year 20212024
Supplied By Bought in storeBought in store
Full Review Full ReviewFull Review
New or Used NewNew
Mileage 0 km0 km
Price Range HighHigh
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Manufacturer Part Number 01016940101694
EAN 40192380270994019238027099
TPI 3/1803/180
Compound Black ChiliBlack Chili
Bead FoldingFolding
ETRTO 40-62240-622
Specified Weight 465 grams465 grams
Min Air Pressure psi psi
Max Air Pressure 73 psi73 psi
Made In Members OnlyMembers Only
Available Sizes 35-622 (700x35c)
40-622 (700x40c)
45-622 (700x45c)
35-584 (650x35b)
40-584 (650x40b)
35-622 (700x35c)
40-622 (700x40c)
45-622 (700x45c)
35-584 (650x35b)
40-584 (650x40b)
Image 1
Continental Terra Speed TR 40 2021
Continental Terra Speed TR E-25 40 2024
Image 2
Continental Terra Speed TR 40 2021
Continental Terra Speed TR E-25 40 2024
Image 3
Continental Terra Speed TR 40 2021
Continental Terra Speed TR E-25 40 2024
Image 4 Not Available
Continental Terra Speed TR E-25 40 2024

Size and Weight Measurements


Size and Weight Measurements
Model Terra Speed TR 40Terra Speed TR E-25 40
Specified Weight 465 grams465 grams
Measured Weight 461 grams473 grams
Measured Width Casing 38 mm (un-round)38 mm (un-round)
Measured Width Tread 38 mm39 mm
Measured Height 35 mm (un-round)35 mm (un-round)
Measured Knob Height Center 1.2 mm1.1 mm
Measured Knob Height Edge 1.2 mm1.3 mm
Measured Casing Thickness Center 2.30 mm2.60 mm
Measured Total Thickness Sidewall Members OnlyMembers 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
Model Terra Speed TR 40Terra Speed TR E-25 40
Spin Up Video YouTubeYouTube
Inner Tube None (30 ml sealant)None (30 ml sealant)
Measured Width 38 mm38 mm
Rolling Resistance
Real tire width in mm:
30-32 = 66 psi/4.6 bar
33-35 = 60 psi/4.1 bar
36-38 = 54 psi/3.7 bar
39-42 = 50 psi/3.4 bar
43-46 = 46 psi/3.2 bar
47-50 = 42 psi/2.9 bar
High Air Pressure
Members OnlyMembers Only
Rolling Resistance
Real tire width in mm:
30-32 = 55 psi/3.8 bar
33-35 = 50 psi/3.4 bar
36-38 = 45 psi/3.1 bar
39-42 = 42 psi/2.9 bar
43-46 = 38 psi/2.6 bar
47-50 = 35 psi/2.4 bar
Medium Air Pressure
Members OnlyMembers Only
Rolling Resistance
Real tire width in mm:
30-32 = 44 psi/3.0 bar
33-35 = 40 psi/2.8 bar
36-38 = 36 psi/2.6 bar
39-42 = 33 psi/2.3 bar
43-46 = 31 psi/2.1 bar
47-50 = 28 psi/1.9 bar
Low Air Pressure
17.8 Watts
CRR: 0.00534
(36 psi / 2.6 bar)
19.6 Watts
CRR: 0.00588
(36 psi / 2.6 bar)
Rolling Resistance
Real tire width in mm:
30-32 = 33 psi/2.3 bar
33-35 = 30 psi/2.1 bar
36-38 = 27 psi/1.9 bar
39-42 = 25 psi/1.7 bar
43-46 = 23 psi/1.6 bar
47-50 = 21 psi/1.4 bar
Extra Low Air Pressure
20.6 Watts
CRR: 0.00618
(27 psi / 1.9 bar)
22.4 Watts
CRR: 0.00671
(27 psi / 1.9 bar)
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


Puncture Resistance Test Results (higher is better)
Model Terra Speed TR 40Terra Speed TR E-25 40
Total Puncture Score Tread 42 Points46 Points
Total Puncture Score Sidewall Members OnlyMembers Only
Tread Puncture Force Sharp Needle Members OnlyMembers Only
Tread Puncture Force Blunt Needle Members OnlyMembers Only
Tread Total Tire Thickness 2.3 mm2.6 mm
Sidewall Puncture Force Sharp Needle Members OnlyMembers Only
Sidewall Puncture Force Blunt Needle Members OnlyMembers Only
Sidewall Total Tire Thickness Members OnlyMembers Only

Static Grip Test Results


Static Grip Test Results (higher is better)
Model Terra Speed TR 40Terra Speed TR E-25 40
Wet Grip Average 58 Points65 Points
Wet Grip Center Members OnlyMembers Only
Wet Grip Edge Members OnlyMembers Only
Measured Knob Height Center 1.2 mm1.1 mm
Measured Knob Height Edge 1.2 mm1.3 mm
Grip in points = coefficient of friction * 100
CX/Gravel grip test rim width = 23.0 mm
Wet Grip Test and Off-Road Tires (info)

Conclusion


Conclusion
Model Terra Speed TR 40Terra Speed TR E-25 40
Full Review Full ReviewFull Review
Verdict Highly RecommendedHighly Recommended
Rating 5.0 / 54.5 / 5
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  • Continental Terra Speed TR 40
  • Continental Terra Speed TR E-25 40
Performance compared to all other CX/Gravel tires
(100% is fastest - lightest - highest - strongest)

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