NOTE: As of 2021, we've improved the puncture resistance tests and now provide 'Total Puncture Score' as the main puncture resistance indicator. Puncture Resistance Test Results Puncture Resistance Test Results (higher is better) At 80 psi the Dynamic Sport is able to outperform the Zaffiro by 0.6 watts. The Zaffiro has a lower rolling resistance at 120 psi and 100 psi. When compared to the Vittoria Zaffiro, rolling resistance is very similar. The Ultra Sport is still the best performing low-cost tire by far. Rolling resistance is a good bit higher when compared to the Continental Ultra Sport. At the even lower air pressure of 80 psi, rolling resistance is 19.5 watts. At an air pressure of 100 psi, rolling resistance rises to 18.1 watts. Rolling resistance at the over-inflated air pressure of 120 psi is 17.3 watts. I did inflate the Dynamic Sport to 120 psi to be able to keep the results consistent across the site. Maximum allowed air pressure as indicated on the sidewall is 102 psi. Use the formula: RR (Watts) = CRR * speed (m/s) * load (N) to calculate rolling resistance at a given speed and load. Total tire thickness at the center of the tire is 3.2 mm, the sidewalls have a thickness of 0.7 mm.Īll numbers are for a single tire at a speed of 29 km/h / 18 mph and a load of 42.5 kg / 94 lbs. The new tire thickness measurements both come in at very average values. This is the smallest 25C rated tire I've measured up to now, most come in at 26 - 27 mm wide on a 17C rim. Measured width of the carcass comes in at 25 mm, height comes in at 23 mm. The Dynamic Sport is a small tire for its rated size. Michelin claims 305 grams, my sample comes in at 304 grams. As this is a wire bead tire, it has a higher weight than most folding tires right from the start, the steel wire is heavier than the kevlar wire used in folding tires.
0 kommentar(er)
