Mustang Forums - View Single Post - Since I haven't posted one in the last couple of hours more ignorance questions 4 ya.

RCTrucker7 · 05-11-2006, 07:21 AM

Ok, I know the dimensions of a tire, say 18 x 10, are relative to the circumfrence (18) and the width (10).

My first question is, when you go to bigger circumfrences, does the width also always automatically increase too?

Second question is, assuming that the width is the same, what is/are the advantage/advantages, if any, of having say a 18 or 20 inch tire over say a 15 or 16 inch tire? I know that the wider the width, the better the traction, as there's more tire surface hitting the pavement, but how does a bigger circumfrence help performance?

05-11-2006, 07:21 AM	#1 (permalink)
RCTrucker7 Senior Member Join Date: Dec 2005 Location: Springfield, VA Posts: 471	Haven't posted one in the last hour or so, so here's more ignorance questions for ya. Ok, I know the dimensions of a tire, say 18 x 10, are relative to the circumfrence (18) and the width (10). My first question is, when you go to bigger circumfrences, does the width also always automatically increase too? Second question is, assuming that the width is the same, what is/are the advantage/advantages, if any, of having say a 18 or 20 inch tire over say a 15 or 16 inch tire? I know that the wider the width, the better the traction, as there's more tire surface hitting the pavement, but how does a bigger circumfrence help performance? __________________ Go Slow or Go Fast. I really don't care. Just GO! Year & Model: 2005 GT 5 Spd Dyno Numbers: Zero. Dynosaurs are extinct. Quarter Mile Time: It's 25% of the time it takes me to go a full mile. Mods: Installed: SLP LoudMouths Steeda Complete C.A.I. Kit Motive 4.10 Gears SCT X-Cal2 Tune (By American Muscle) Sequential Taillights Next: Hurst Short Throw Shift Kit