CX/Gravel Tire Test: Goodyear XPLR Inter 45

The Goodyear XPLR Inter is a 'Goodyear designed for Zipp' tire optimized for the 32 mm internal width Zipp 303 XPLR wheelset. It is Goodyear's most versatile gravel bike tire in the XPLR series, featuring an all-round tread pattern that provides excellent grip in various off-road conditions. If maximum speed is your priority, you might also consider the XPLR Slick, which follows the same design principles but is tailored for speed.

We tested the Goodyear XPLR Slick (read our review) a while ago, and it confirmed that the Goodyear Zipp XPLR range looks promising. It uses some tech from Goodyear's latest Eagle F1 R road bike tires, which performed strongly in our tests. The 120 TPI casing is complemented with Goodyear's UHP Dynamic compound, an advanced compound offering low rolling resistance and high grip levels.

With the XPLR series being designed for a 32 mm internal rim width, the actual size of the tire is always an interesting aspect. The XPLR Inter is only available in the 45-622 size, but our measurements show that it's much smaller than "conventional" tires of the same size. We're quite sure it will be very close to 45 mm on the 32 mm rims, but if you're expecting a huge volume, you're out of luck with these tires.

Manufacturer Specifications

Manufacturer Specs
Brand	Goodyear
Model	XPLR Inter
Year	2025
Supplied By	Bought in store
New or Used	New
Mileage	0 km
Price Range	Very High
Buy At
Manufacturer part number	00.1918.747.001
TPI	120
Compound	Dynamic UHP
Bead	Folding
ETRTO	45-622
Specified Weight	530 grams
Max Air Pressure (psi)	50
Made In	Members Only
Available Sizes	45-622 (700x45c)

Goodyear XPLR Inter 45 Test Results

Size, Weight, and Thickness Measurements

Size, Weight, and Thickness Measurements
Specified Weight	530 grams
Measured Weight	540 grams
Measured Width Casing	39 mm (un-round)
Measured Width Tread	42 mm
Measured Height	36 mm (un-round)
Measured Knob Height Center	1.2 mm
Measured Knob Height Edge	2.0 mm
Measured Total Thickness Center (excluding knobs)	2.20 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	None (30 ml sealant)
Measured Width	39 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 barHigh Air Pressure (50 psi / 3.4 bar)	Members 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 barMedium Air Pressure (42 psi / 2.9 bar)	Members 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 barLow Air Pressure (33 psi / 2.3 bar)	19.3 Watts CRR: 0.00579
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 barExtra Low Air Pressure (25 psi / 1.7 bar)	23.5 Watts CRR: 0.00704
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)
Total Puncture Score Tread	31 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	2.20 mm
Sidewall Puncture Force Sharp Needle	Members Only
Sidewall Puncture Force Blunt Needle	Members Only
Sidewall Total Tire Thickness	Members Only

Hard Surface Static Grip Test Results

Static Grip Test Results
Wet Grip Average	70 Points
Wet Grip Center	Members Only
Wet Grip Edge	Members Only
Measured Knob Height Center	1.2 mm
Measured Knob Height Edge	2.0 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

The performance of the Goodyear XPLR Inter in our tests is strong, and we see no reason we would not recommend this tire if you have the matching wheels. Like the XPLR Slick (read our review) that we tested earlier, we see that the size of the tire is small, but this is obviously related to the choice to match the tires with wider rims, which give the tires more volume.

Better-performing tires are available if you do not have the matching Zipp wheels.

RATING: 4.5 / 5
TEST VERDICT: Highly Recommended

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