20x8.5 +18 front and 20x10 +10 rear would be about right for a comfortable flush fit. Some would argue doing another 10mm for the "aggressive" look *cough* bullitt *cough*
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____________________ PROJECT DiaD - Sold but not forgotten!
The first testicular guard, the "Cup," was used in Hockey in 1874 and the first helmet was used in 1974. That means it only took 100 years for men to realize that in order to work the penis, the brain must remain whole.