Quote:
Originally Posted by churchx
Remember that not only acceleration is affected, but also braking.
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More braking torque will be required to decelerate a wheel/tire with more rotational mass at the same rate, but more braking torque is available simply by mashing the pedal harder. So braking shouldn't be affected, at least on a relatively smooth surface.
Car and Driver tested a golf with 15, 16, 17, 18, and 19" wheels/tires a few years back. Acceleration is affected, braking not so much:
https://www.caranddriver.com/feature...d-tires-tested
Note: 18" and 19" are not directly comparable for grip as they had a lower treadwear-rating higher speed-rated tires (despite being same make/model) vs. the 15 16 17. 15/16/17 results below:
tire sizes: 195/65-15, 205/55-16, 225/45-17
wheel/tire weight: 40, 46, 48 lb.
0-60: 7.6, 7.7, 7.8 sec.
0-100: 22.3, 22.6, 22.7 sec.
1/4-mile: 15.9@88, 16.0@87, 16.0@87mph
60-0: 130 ft, 133 ft, 128 ft
skidpad: 0.83, 0.85, 0.85 g