The guys have made some great points, and given some sound advice.
As mentioned, the MC28, rightly or wrongly, often has the more desired styling [mostly due to the single-sided Pro-Arm swingarm], and is sought after as being the last model. It is however very expensive [and a little complicated] to derestrict, requiring quite intrusive modification to the wiring harness, and the key card/PGM progamming; currently something that can only be done by one vendor in Japan.
The MC28 Pro-Arm isn't a direct fit into an MC21 frame, but it's not a difficult conversion. The NC30 and NC35 swingarms are different to the NSR however, and fitment of one of those is a more complicated job. Don't expect to be able to buy any old Pro-Arm and just slot it in. There's very little room between the forks and the radiator, so fitting a set of USD forks drastically limits steering lock. I have RS250 NF5 USD forks on my MC21, and while they are vastly superior to the standard NSR forks, I'm not sure I'd really recommend a USD conversion.
In my personal opinion, the MC21 is the better bike. The chassis is undeniably better, although you'd be hard pressed to tell on the street, and it's better value for money. It's very easy and cheap to liberate 60rwhp with little more than a wire-splice, modified airbox, and a set of aftermarket silencers.
I prefer the MC21 styling too, but that is of course, totally down to personal preference.
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Andy.
NSR-WORLD.COM
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