How do I tell an original FC wheel. 14x5.5?, on 5x4.75 bolt circle, but what backspacing? Same as regular cars, 4.25? Thanks --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.510 / Virus Database: 307 - Release Date: 8/14/03