I've had my SPS for 6 years now, and still love it. I have never had the luck to ride any testastretta engined bikes, but no standard engined dukes will pull away from it in a straight line (inc. 'R's) and I weigh 16 odd stone so don't worry about performance differences. I understand that the 'stretta engined bikes are a bit more revvy, the older ones more grunty, but if you find a good clean example on an SPS I would go for that (not like mine
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