Quote:
Originally Posted by tracer
Here's a small table that sums up the differences between my Bad Tire and the Good Tire  If anyone has any idea on why the truck was pulling towards the ditch when the Bad Tires were on, pls let me know. When I put the Good Tires on, the truck's steering became perfect (all-wheel alignment was done twice when the Bad Tires were on).
BAD TIRE
Michelin 11R22.5" XZA-3
Diameter: 41.3"
Loaded radius: 19.3"
Sidewall: 9.4" (41.3 - 22.5 / 2)
Width: 11.1"
Weight: 117.7 lbs
RPM: 502
GOOD TIRE
Michelin 275/80R22.5 XZA-3
Diameter: 40.1"
Loaded radius: 18.6"
Sidewall: 8.8" (40.1 - 22.5 / 2)
Width: 10.9"
Weight: 112.9 lbs
RPM: 518
I know when I changed from 15" rims and tires on my car to 16" ones, steering became much more sensitive. The 16" tire had the same diameter but a shorter sidewall and bigger width. I think a steer tire's width is the factor that affects truck's steering. Weight is probably important too. |
Low profile tires have less sidewall flex.