I have a pair of 1990 HRC RS250 cylinders, heads, powervales, o rings, nuts and washers etc. If you want an effective way to increase horsepower, this is just the thing for your NSR. The RS250 was good for 72+ bhp.
£295 plus shipping (UK £12, Europe £25, USA & Rest Of World £35). The UK sterling (GB£) exchange rate is fantastic for anyone overseas buying from the UK.
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