CX/Gravel Tire Comparison:
Specialized S-Works Pathfinder 2Bliss Ready 42 2022 vs
Tufo Gravel Speedero 40 2022

Contents and Test Summary

  1. Manufacturer Specifications
  2. Size and Weight Measurements
  3. Rolling Resistance Test Results
  4. Puncture Resistance Test Results
  5. Static Grip Test Results
  6. Conclusion
  • Specialized S-Works Pathfinder 2Bliss Ready 42
  • Tufo Gravel Speedero 40
Performance compared to all other CX/Gravel tires
(100% is best)
Pro Members get 11-point radar charts

Manufacturer Specifications


Manufacturer Specifications
Brand SpecializedTufo
Model S-Works Pathfinder 2Bliss Ready 42Gravel Speedero 40
Year 20222022
Supplied By Bought in storeBought in store
Full Review Full ReviewFull Review
New or Used NewNew
Mileage 0 km0 km
Price Range Very HighHigh
Buy At
Manufacturer Part Number 00022-4451-
EAN 8592723054948
TPI 120210/375
Compound Gripton T5/T7-
Bead FoldingFolding
ETRTO 42-62240-622
Specified Weight 435 grams430 grams
Min Air Pressure 35 psi30 psi
Max Air Pressure 65 psi70 psi
Made In Members OnlyMembers Only
Available Sizes 42-622 (700x42c)36-622 (700x36c)
40-622 (700x40c)
Image 1
Specialized S-Works Pathfinder 2Bliss Ready 42 2022
Tufo Gravel Speedero 40 2022
Image 2
Specialized S-Works Pathfinder 2Bliss Ready 42 2022
Tufo Gravel Speedero 40 2022
Image 3
Specialized S-Works Pathfinder 2Bliss Ready 42 2022
Tufo Gravel Speedero 40 2022
Image 4
Specialized S-Works Pathfinder 2Bliss Ready 42 2022
Tufo Gravel Speedero 40 2022

Size and Weight Measurements


Size and Weight Measurements
Model S-Works Pathfinder 2Bliss Ready 42Gravel Speedero 40
Specified Weight 435 grams430 grams
Measured Weight 438 grams445 grams
Measured Width Casing 41 mm (un-round)37 mm (un-round)
Measured Width Tread 40 mm40 mm
Measured Height 40 mm (un-round)35 mm (un-round)
Measured Knob Height Center 0.0 mm1.3 mm
Measured Knob Height Edge 1.2 mm1.3 mm
Measured Casing Thickness Center 2.30 mm1.70 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 S-Works Pathfinder 2Bliss Ready 42Gravel Speedero 40
Spin Up Video YouTubeYouTube
Inner Tube None (30 ml sealant)None (30 ml sealant)
Measured Width 41 mm37 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
20.2 Watts
CRR: 0.00606
(33 psi / 2.3 bar)
17.5 Watts
CRR: 0.00525
(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
24.0 Watts
CRR: 0.00719
(25 psi / 1.7 bar)
20.0 Watts
CRR: 0.00600
(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 S-Works Pathfinder 2Bliss Ready 42Gravel Speedero 40
Total Puncture Score Tread 47 Points33 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 mm1.7 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 S-Works Pathfinder 2Bliss Ready 42Gravel Speedero 40
Wet Grip Average 78 Points78 Points
Wet Grip Center Members OnlyMembers Only
Wet Grip Edge Members OnlyMembers Only
Measured Knob Height Center 0.0 mm1.3 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 S-Works Pathfinder 2Bliss Ready 42Gravel Speedero 40
Full Review Full ReviewFull Review
Verdict Highly RecommendedHighly Recommended
Rating 5.0 / 55.0 / 5
Buy At
  • Specialized S-Works Pathfinder 2Bliss Ready 42
  • Tufo Gravel Speedero 40
Performance compared to all other CX/Gravel tires
(100% is fastest - lightest - highest - strongest)

Pro Members get 11-point radar charts