RE: BME 105 Info request
I had a 102 Evo and just sold it due to noise considerations at our field (I'm going 50cc with a can to prolong the inevitable).
I loved the motor! If you use a Tru Turn (nice, heavy knurling on the backplate) you will be fine. Drill the backplate for the two bolts on the hub and you will have no slip.
Used 102's are going for $700 - $800 or so. If the price is right you won't be sorry. Mine turned a Menz 26x10 at 6250 rpm. Easy starting, great transition.
Note: I have some props, a 4 1/4" Tru Turn Ultimate spinner, and a 7/16" pilot bit for drilling props that I plan to put on sale here soon. PM if interested.
Chuck