The shakedown runs of my MC28 I have spent three years fixing up has revealed a failing clutch. Over-revs in 10 to 12K range. Any aftermarket sources or should I go OEM Honda bits?

My Ducati has a sintered racing clutch. Is this available or even necessary on the NSR?

Thanks,
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Andre E. Benguerel
1996 Honda NSR250R
Daijiro Kato/Fortuna Replica #74

2000 Honda RS250R (NX5)
2008 Honda RS250R (NXA)
AFM Expert #430