Quote:
Originally Posted by timurrrr
Now that you've mentioned -- yes, SX2s spec weight in that size is 26.2 lbs [1].
Still not clear where the extra 1.8 lbs come from; I don't think TPMS + center caps + balancing weights + dust and dirt would account for that.
Perhaps just an imprecision of my kitchen scales when used on an uneven pavement of my garage (I did try multiple locations though)...
Here's a quick table of weight SX2s vs Primacy HP in different sizes:
Code:
Size | SX2 | PHP | Difference
215/45R17 | 23.0 lbs | 20.8 lbs | 2.2 lbs
245/40R17 | 26.2 lbs | 22.5 lbs | 3.7 lbs
So yeah, apparently SX2s are so heavy that inertia-wise they outweigh the benefit of lightweight wheels. Still much faster laptimes though.
Perhaps when I'm ready for RE71Rs I can get well below 40 lbs for the wheel+tire combo :P
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I couldn't easily find the weight of the OEM PP wheels without tires, but it used to be known to be ~22 lbs. |
Yeah they might be slightly lighter than that, but either way, saving weight on the wheels isn't much of a problem. As for saving weight on tires, you just have to pick out a list of top choice tires and then look them up by weight. Tire Rack has weight specs on all of their tires, but they don't necessarily have every tire out there. My wheel and tire combo came out to 39.6 lbs (obviously for a different setup as well, but the tires are big) -
https://www.ft86club.com/forums/show...=135328&page=7