ad24gti 0 Posted November 10, 2010 Report Share Posted November 10, 2010 When i put a set of 15's on the car next to 17's they were the same sixe and assume rolling diameter was the same Ran 16's on my old vr and 17's on this one cannot tell the diffrence Link to post Share on other sites
oldmandon 1 Posted November 10, 2010 Report Share Posted November 10, 2010 When i put a set of 15's on the car next to 17's they were the same sixe and assume rolling diameter was the same Ran 16's on my old vr and 17's on this one cannot tell the diffrence If as you increase wheel size you reduce tyre profile then yes the rolling radius should be the same, and the speedo will read correctlyish. It's when people mess with profiles that problems occur. On the increasing alloy topic, surely a larger alloy wheel with a smaller tyre would weigh less than a smaller alloy with a larger tyre, as tyres weigh a ton!!!! Link to post Share on other sites
ad24gti 0 Posted November 10, 2010 Report Share Posted November 10, 2010 Depend's what wheels your running, The TH2 compomotive wheels felt lighter than the 15's All down to personal choice tho Link to post Share on other sites
oldmandon 1 Posted November 10, 2010 Report Share Posted November 10, 2010 You just confirmed that a larger alloy and tyre is lighter than a smaller alloy and tyre. I'd guess cheep crappy wheels would be heavier as they aren't designed as well, and would be using cheaper ingredients in the mix so would need more for the equivalent strength of a more expensive wheel, hence increased weight.... right/wrong?? Link to post Share on other sites
cornishvr6 52 Posted November 10, 2010 Report Share Posted November 10, 2010 mine is running 7.5 x 17" bbs rc's and there great, still handles awesome on the twisty stuff but i aint tried it on the standard rims yet.. prob will have to wave goodbye to the sump if i do on these roads Link to post Share on other sites
Lukey. 381 Posted November 11, 2010 Report Share Posted November 11, 2010 17" BBS RCs are actually a really lightweight wheel, 8.2KG for a 17" is considered quite light Link to post Share on other sites
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