Iv read frosts post. He's a cool dude with lots of good advice. LOVE YA FROST! I already have the SSRC Racing shoes aswell as MIP, Joe its not a stupid question its just beter than typing in "Throtle Return Spring". Im always coming up with crazy abrevations. but yeah I still have the collet from the old .15 it came with but I didnt know this motor or anything about it so I wanted to make sure so when I order from tower I dont end up waiting 3 days and get disapointed because I need someing else. OddsNEnds, thanks for the advice on heavy and light flywheels. Ummm (collects thoughts...) Oh yeah, I have the RR steel spur with an 18t CB I think the spur-g is 66t. As for the "Vented Flywheels" there is actually a good use for them im guessing its to cool your CB and clutch, (Best Guess).