Bought the bike (fx470 2002) because at the time it was the closet thing I could find to a trials bike that I could make streetable.( also had elec. start) Some comments about the seat tank have not all been good but I like the idea weight distribution and looks but then its not even a gallon. The Clark tank looks bulky but I guess where are you going to put 4 gal. any thoughts pros or con on either.