The model in the advert is an "R5K" variant (with the correct motor!). The full designation is 1989 NSR250R5K MC18, usually just referred to as NSR250 R5K, MC18 R5K, or just MC18 Seed. (SEED is the colour scheme, based on the 1989 NSR500 race bike.)

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Andy.
NSR-WORLD.COM
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