Thanks for the info on the bike guys. The mileage shows 16,800 kms. I have no idea when the last top-end was done. I keep an eye out for interesting bikes for my collection at decent prices, so jumped on this one for $5,000, which is a great price for a bike here in the US, even though its not very original. This one will sit alongside my other smokers and get ridden a few times a year on short rides.
A few more photos:
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1992 NSR250
2000 Aprilia RS250
1999 Aprilia RS250
1984 Yamaha RZ500
1985 Yamaha RZ350
1988 Suzuki RGV250