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A standard bore and stroke dominator would be a much nicer thing to ride than a hotted up 65.5mm stroke T100.  If there had been an easy way to get six speeds close ratio into one, it would have been worth playing with.  I've just been reading Michelle Duff's book 'make haste slowly', it is interesting what he says about gearing.  While a lot of guys gear for max speed at the ends of the straights, he used to gear for max flexibility on the tighter parts of the race circuit.  What you gain down the straights is nothing like what you can pick up by outriding others around the tight parts of the circuit.  The short stroke twin demands 110% riding at all time, and is essentially a very top end motor.  With my Triumph 500 and it's 4 speed CR box, you could choose where you wanted to lose a race.  If you gear it high, it is good on the long parts of the circuit however gets thrashed around the tight bits.  I only ever had one really good ride on it.  That was when I dropped the gearing right down as low as possible, and I blitzed a field of superbikes and two strokes around most of Winton Raceway.  I was passed by three desperate riders at the end of the straight when my bike ran out of puff.  Then the guys on front of me found they couldn't get around the next corner.  So I pulled my bike up out of it's lean and speared off just missing a couple of them.  I'd always tell anyone wanting to go down that path that if you haven't got the gearbox- forget it. Otherwise it is worth doing for a lot of fun and a big adrenalin rush.  It is one of the reasons that I am so silly in the head.


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