Can you guys go out and look on your bikes to see the brands of calipers?
I know on the 1200, they brand names are cast into the calipers on the front & rear. Rears are a little more subtle than the fronts though. I'm thinking the 250 & 400 would be similar.
Also, what spark plugs do the 400's use?
I noticed the 250's gearbox has the same ratios as the 400 after gov't restrictions were put in place, but before that, the 250 had different ratios in 5th & 6th... was the 400 like that, too, or did they always have the same top two gears?