Road Bike Tire Test: Rene Herse Chinook Pass Extralight 28
Contents and Test Summary
- Introduction
- Manufacturer Specifications
- Size, Weight, Thickness
- Rolling Resistance: 13.8 Watts
- Puncture Resistance: 40 Points
- Static Wet Grip: 58 Points
- Conclusion: 2.7 / 5 Not Recommended
- Comments
- Rene Herse Chinook Pass Extralight 28
(100% is best)
The Chinook Pass is one of Rene Herse's smallest tires, and unlike their bigger counterparts, these are more likely to be found on road bikes that only see asphalt. We've tested many of Rene Herse's tires over the past few years, and although they aren't the strongest performers in our tests, they performed decently, and we could find use cases for gravel bikes.
The Chinook Pass is a non-tubeless clincher tire, as only the 35 mm and up tires from Rene Herse carry the TC (tubeless-compatible) label. Because of this tire's non-tubeless nature, we will compare it to many other non-tubeless road bike tires from the most well-known manufacturers.
The Chinook Pass is available with either a Standard or Extralight casing. We've tested the Extralight casing, which is roughly 23 grams lighter than the Standard casing and comes at a premium price. Suppose you want to learn more about the differences between the Rene Herse casings. In that case, we recommend you look at our Rene Herse Casing Comparison, where we compared the Snoqualmie Pass with the Extralight, Standard, Endurance, and Endurance Plus Casings.
Manufacturer Specifications
| Manufacturer Specifications | |
|---|---|
| Brand | Rene Herse |
| Model | Chinook Pass Extralight |
| Year | 2023 |
| Tire Type | Tubetype (clincher) |
| Supplied By | Bought in store |
| New or Used | New |
| Mileage | 0 km |
| Price Range | Very High |
| Buy At | |
| Manufacturer part number | RF728-SX-CP |
| TPI | - |
| Compound | - |
| Bead | Folding |
| ETRTO | 28-622 |
| Size Inch | 28" |
| Specified Width (mm) | 28 |
| Specified Weight | 225 grams |
| Max Air Pressure (psi) | 105 |
| Made In | Members Only |
| Available Sizes | 28-622 (700x28c) |
Rene Herse Chinook Pass Extralight 28 Test Results
Size, Weight, and Thickness Measurements
| Size, Weight and Thickness Measurements | |
|---|---|
| Specified Weight | 225 grams |
| Measured Weight | 216 grams |
| System Adjusted Weight (tire + inner tube (100 gr) |
316 grams |
| Measured Width | 28 mm (un-round) |
| Measured Height | 25 mm (un-round) |
| Total Tire Thickness Center | 2.2 mm |
| Total Tire Thickness Sidewall | Members Only |
| Unmounted Casing Width | 73 mm |
| Unmounted Tread Width | Members Only |
| Tread Cover (Tread / Casing Ratio) | 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 Wide (125gr butyl) |
| Measured Width | 28 mm (un-round) |
| Rolling Resistance Real tire width in mm: 22-24 = 132 psi/9.1 bar 25-27 = 120 psi/8.3 bar 28-29 = 108 psi/7.4 barUltra High Air Pressure (108 psi / 7.4 bar) |
13.8 Watts CRR: 0.00414 |
| Rolling Resistance Real tire width in mm: 22-24 = 110 psi/7.6bar 25-27 = 100 psi/6.9 bar 28-29 = 90 psi/6.2 barExtra High Air Pressure (90 psi / 6.2 bar) |
14.4 Watts CRR: 0.00432 |
| Rolling Resistance Real tire width in mm: 22-24 = 88 psi/6.1 bar 25-27 = 80 psi/5.5 bar 28-29 = 72 psi/5.0 barHigh Air Pressure (72 psi /5.0 bar) |
Members Only |
| Rolling Resistance Real tire width in mm: 22-24 = 66 psi/4.6 bar 25-27 = 60 psi/4.1 bar 28-29 = 54 psi/3.7 barMedium Air Pressure (54 psi / 3.7 bar) |
Members Only |
| The Road Bike 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 | 40 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 | 2.2 mm |
| Sidewall Puncture Force Sharp Needle | Members Only |
| Sidewall Puncture Force Blunt Needle | Members Only |
| Sidewall Total Tire Thickness | Members Only |
Static Grip Test Results
| Static Grip Test Results | |
|---|---|
| Wet Grip Average | 58 Points |
| Wet Grip Center | Members Only |
| Wet Grip Edge | Members Only |
| Grip in points = coefficient of friction * 100 Road bike grip test rim width = 19.0 mm |
|
Conclusion
- Rene Herse Chinook Pass Extralight 28
(100% is best)
While we could find use cases for Rene Herse's bigger gravel bike tires, the smaller Chinook Pass lacks performance in our tests compared to road bike tires from the biggest and most popular manufacturers. The strong points are its low weight and very wide tread that covers a large portion of the casing. Rolling resistance is relatively high, especially considering the low performance in the tread and sidewall puncture tests.
The real deal breaker for us is the performance in our wet grip tests, where the Chinook Pass performs significantly worse than the other tires. Given that we expect the Chinook Pass to be preliminary used on hard surfaces (unlike the bigger gravel-oriented tires), and in all weather conditions, we recommend skipping this tire as we feel the other tires do not only offer better all-round performance but also provide much more grip.
RATING:
2.7
/ 5
TEST VERDICT:
Not Recommended