20" wheels...reducing tow capacity?
Hey, all! New here, still looking at what we want out of a TT (I have another thread running asking about possibilities there). But another question dawned on me today as I was reading some other post...
Forum Discussion
tread type will not matter.
size of the rim may or may not matter...example. 235-85-16, 265-75-16, 235-80-17, 265-70-17, 225-70-19.5 among other sizes I know of, are ALL about 31.5-31.7" tall or diam. Any of these can be exchanged for the a different size, and generally speaking, not towing, power difference should be noticed!
Please note, I also said generally speaking.....if you go from an aluminum rimmed say 235-85-16 to a steel rimmed 225-70-19.5......the 19.5" setup will weigh probably 5-7 lbs per tire more than the 16" size, your but and the motor will have more drive train loss, so you will probably notice some lag in acceleration.
The simple answer as one can see, is "it depends" upon if the rim diam are different, to no difference, then back to a difference.
On the other hand, one can do the same for axel ratios, as to which is best for towing. one can have a 3.42 ratio with a 28" tire, a 3.73 with a 30" tire, or 4.10s with a 32" tire, have the same chassis, motor, trans etc, and ALL three rigs will have the same mph shift points etc. As the tire diam has made up for the axel ratio difference! So as some may or may not notice, the F350 with a 4.33 gear setup, is the same as an F450 with a 4.33 gear setup. But reality is, being as the 450 has more payload, it has a higher potential trailer potential. Same could be said for a GM 1500 with a 3.42 geared half ton with the 6.2 motor, and a 2500 with the same motor etc.
Marty
size of the rim may or may not matter...example. 235-85-16, 265-75-16, 235-80-17, 265-70-17, 225-70-19.5 among other sizes I know of, are ALL about 31.5-31.7" tall or diam. Any of these can be exchanged for the a different size, and generally speaking, not towing, power difference should be noticed!
Please note, I also said generally speaking.....if you go from an aluminum rimmed say 235-85-16 to a steel rimmed 225-70-19.5......the 19.5" setup will weigh probably 5-7 lbs per tire more than the 16" size, your but and the motor will have more drive train loss, so you will probably notice some lag in acceleration.
The simple answer as one can see, is "it depends" upon if the rim diam are different, to no difference, then back to a difference.
On the other hand, one can do the same for axel ratios, as to which is best for towing. one can have a 3.42 ratio with a 28" tire, a 3.73 with a 30" tire, or 4.10s with a 32" tire, have the same chassis, motor, trans etc, and ALL three rigs will have the same mph shift points etc. As the tire diam has made up for the axel ratio difference! So as some may or may not notice, the F350 with a 4.33 gear setup, is the same as an F450 with a 4.33 gear setup. But reality is, being as the 450 has more payload, it has a higher potential trailer potential. Same could be said for a GM 1500 with a 3.42 geared half ton with the 6.2 motor, and a 2500 with the same motor etc.
Marty
