All bikes on the net are faster than in real life except mine. :lol:
I had the stock then went to the 351 with little gain in top end. Then I went to a 15/39 to reduce vibration at cruising speed (62mph) Still no gain in top end. It just runs out of balls. Wind resistance has a lot to do with it.
I could also be I am 200 lbs and have a small windshield.