Some NX5 and NXA parts can be interchanged, and a later model is certainly a better proposition for a more ferequently used bike these days in my opinion.

As much as I love the 90° engined bikes for being so similar to the NSR, the 72° motor is undeniably better, and much easier to maintain these days. They also have a greater performance potential, although how the later motors can be capable of 10~15hp more than an NF5 is quite beyond me!
_________________
Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.

Check us out on Facebook! Please "like" our page!