Can't say as I've ever heard of an NSR gearbox failing. I'm sure there must have been, but never heard of it, so it can't be common. How much junk space do you have in your garage?
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball