chiburbia Posted September 22, 2017 Share Posted September 22, 2017 I bought my bike slightly used (2,2XX miles) and the previous owner put on some aftermarket parts. TwoBros exhaust, PC5, higher flow filter, etc. My question, is what RPM are people running in 6th at 70mph? I'm trying to determine if he changed any of the sprockets (I figured it was a viable possibility with all the other aftermarket changes he made) because I'm running 5-5400rpm at 70 in 6th gear and it just seems slightly high to me.. Link to comment Share on other sites More sharing options...
afatrat Posted September 22, 2017 Share Posted September 22, 2017 Not 100% sure (been a while since I paid attention) but that sounds about right. You could just count the teeth. Stock is 16 front, 43 rear. Link to comment Share on other sites More sharing options...
cyow5 Posted September 22, 2017 Share Posted September 22, 2017 Yeah, that sounds stock, but counting the teeth will be your most accurate move. I am still in the <600mi break-in period, so "no sustained rpm over 5,000" is brutal. Link to comment Share on other sites More sharing options...
chiburbia Posted September 22, 2017 Author Share Posted September 22, 2017 Thanks for the reassurance and the suggestion, I'll take a look when I get a chance and see what the tooth count is. Link to comment Share on other sites More sharing options...
stevebtx12 Posted September 24, 2017 Share Posted September 24, 2017 That is about the same for mine in 6th going 70 and it's completely stock. I don't think it's high when you consider redline is 10k. Link to comment Share on other sites More sharing options...
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