yeah good one skud,ive had lots of two stroke dirt bikes(and a few four strokes) and we always lowered the gearing to the max,like by ten teeth!!we rode years around the castslemaine victoria district with nice sweeping power slide fire tracks to really down and up little goat tracks and creeks to almost un walkable sections,so a nice low first gear was in order,i doubt my last 250 yamaha would have topped 90 kays,but well suited to play racing with mates in the bush,i figured wrongly that 3 teeth wouldnt do much after my dirt bike experiences,ive had a few road bikes but never tampered with the original gearing,i was trying to source from the chain gang a 35 tooth which they can custom make but its not happening,,so i just got the 37,,ive got a couple of 550 motors so itll come in handy further down the track,,yeah the 400 gearing im guessing would be lower overall to the larger capacities,these are all a fairly revvy engine and are lower geared compared to the pommie stuff of old,have a look in the 400 section and im sure the specs as to reduction etc are there..these little jappers do rev hard on the freeway!
