Update......
Well, I finally put the motor to the test yesterday.
Me, SecN8ure, a couple guys from the BATS (Bay Area Two-Strokes) forum met with Eddiemcrider and his local twisties (Antioch). Eddie on his Derbi Senda tard (stock), Marcus from BATS on his modified Derbi Senda tard, AJ from BATS on his modified RS50, SecN8ure on a very cool looking "Spiderman" Aprilla scooter and I on the Yerbi.
Anyways, I briefly got the bike up to 65mph before I let off......for those familiar with the YSR speedo, needle tangent to the (yellow) turn signal indicator. I had no problem keeping up with the other guys and felt I still had plenty of throttle/power left

I am really satisfied with it's current set-up (Derbi Senda motor w/ 24mm carb, "SP" M/K pipe & 13/41 sprockets).
I now feel complete and am so glad I did this conversion. I can only imagine what the speeds will be with the Pro Crank & 72cc kit, estimated speed of 80mph
My next update will be my review of the bike on the track (SMRRC, Stockton) vs my 04 NSR.....stay tuned
