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Steve Tinker · 01-03-2016, 12:34 PM

Generally speaking, the 17" wheel / tyre combination is lighter weight than the average 18" combo (unless you go forged, high cost wheels). That lighter weight really contributes to better acceleration, more accurate turn in & better mid speed response from the engine as its turning less reciprocating weight. And the suspension is not working as hard too, responding better due to less mass.
A little like comparing a lightweight flywheel / clutch assembly versus the standard items.

I cycled competitively for many years and the old adage was that saving an ounce on your wheels was equivalent to saving a pound on your frame. I don't think that formulae has changed.....

01-03-2016, 12:34 PM	#3
Steve Tinker Registered User Join Date: Dec 2008 Location: Queensland, Australia Posts: 1,522	Generally speaking, the 17" wheel / tyre combination is lighter weight than the average 18" combo (unless you go forged, high cost wheels). That lighter weight really contributes to better acceleration, more accurate turn in & better mid speed response from the engine as its turning less reciprocating weight. And the suspension is not working as hard too, responding better due to less mass. A little like comparing a lightweight flywheel / clutch assembly versus the standard items. I cycled competitively for many years and the old adage was that saving an ounce on your wheels was equivalent to saving a pound on your frame. I don't think that formulae has changed..... __________________ 2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley. 2001 MV Agusta F4.