Reply to "15x10 and 15x14 backspacing."

There really is no singular answer as it depends on some factors and preference...... but there are a lot of previous threads on backspacing, with lots of opinions. Also be aware some people (and most wheel manufacturers) quote backspacing to the inner tire bead, others to very outer lip of the wheel.

What we really need is a sticky with wheel + tire type, full wheel dimensions, flare type and supplier and a couple photos of the car that they are mounted on.

There is fine balance between havng the wheel too far under the flare (funny car syndrome) and having it out at the edge requiring higher ride height. On my factory GT5 to keep the car ride low the front tire hits the flares over large bumps and consequently I have cracks in the flares.

Flares from different sources/vendors and type (steel or fiberglass) are often different width, affecting wheel backspacing choice.

FWIW the 10" Campi's are quoted as having 4 5/8" backspacing and the 13" wide are 5.5" backspacing (to outer lips). Th 14" width wheels always appear to me to be wider on the body so maybe they have the same backspacing and the extra 1" is on the outside.

My aftermarket Kodiaks for the GT5 and GP4 (10" & 13" widths) are 4.625" front and 4.75" rear to tire bead lip.

Julian