It comes down to the price,how much would a 21 se/sp with 5.000 miles cost if you could find one that is as clean as the R you have seen.
As a bike(I might get my arse kicked here)the R is as good as the SE/SP.Apart from the clutch noise if you rode an R back to back with an SP you wouldn't notice any difference in fact I think the wet clutch feels better than the dry one but you only use it to pull away and change down anyway.
The SP wheels do look better then the R/SE but not in that naff gold colour.
The R shock and Forks are as good as the SE/SP if you get them refreshed and set to your body weight but you dont have as much adjustment on the R forks and Shock.Stephen RC45 did tell me the SE/SP forks dont work in the way they should,it was something about a vavle inside that lets all the oil pass when it shouldn't but he would have to tell you about that as I got a bit lost.The R shock cant be that bad as I think Andy is going the use an R shock on the NSR-WORLD racer.
At the end of the day if your happy with the price of the R and the condition then buy it.
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