referring

I guess one of the biggest discrepancies is the difference in suspension between the Cup RC390 and the Street RC390. I dont hear differentiation between the two when referring to suspension problems/adjustments/upgrades/tuning etc. I have a street RC and am looking at a CUP 390 for racing but...

Lowsided my bike and broke off the shift lever. Ordered a new one but the bolt is all scraped up and I can't reuse it. Would rather try here to see if anyone near by has it laying around before I order one from a parts warehouse. I'm in Los Angeles btw. Referring to number 15 on this diagram...