Quote:
Originally Posted by MPGee
Weights, per tire
18.83 kg (45.51 lbs) 16x6.5" with 205/55R16
16.39 kg (36.13 lbs) 15x6.0" with 195/60R15
2.44 kg (9.38 lbs) Difference
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So, as already noted, the ride is noticeably smoother and quieter, which I am enjoying. See attached photo for the before/after. One big bonus about moving to 15" is that there's a
lot more wheel covers available, and also, I think properly-sized pizza pans are more available too.
I do not have any immediate plans to do an AB test, as I realized how much time will be involved... I don't have a lift, don't have jack, etc, so I'd be using what Toyota gave me in the trunk. That'll be later when I've got some free time, still weather, and agreeable traffic. Also down the road is weighing what the 15 and 16" steel wheels alone. When it's time for new tires, I'll ask the tire shop to let me weigh the bare wheels before they slap the new rubber on.
Thx to all for the tips.
In summary, I now have tires that are 1 cm narrower, and the total weight savings on wheels & tires is 37.52 lbs, which I hope is good for something...
I'll provide an update in a few tankfuls to see if I (empirically) notice any improvement in fuel economy.