fontyyy wrote:
I don't understand this train of thought at all; surely you want a 2 stroke (especially a nicely modded NSR) for the track and if you must use one use a 4 stroke on the road where it's strengths (flexabilty, usabilty, lastability etc) can be used to their greatest effect?

A 4 stroke will be more reliable on a track. A bike on the road wouldn't get anywhere near as much mechanical abuse as it would on a track. Rev's always 9k plus, engine would be working flat out most of the time. I know I'd rather put a 4t through that than a 2t. The NSR is ideal for the road, how often do you hold it at full throttle for anything more than a few seconds. Your never up in the upper rev range for more than a few seconds, and if I wanted a bike that had top end, I'd get a 750 or 1000.

The NSR is a toy for me, its strengths are perfect for road riding, small, light, and fast enough for the crappy UK roads.

Majority of UK tracks are fast circuits with long straight sections (with a couple of exceptions), so I'd rather run a 4t on them than risk maxing out a 250 down them and seizing at 100+