I'm in the market for a mini motard for my 10yr old son. Prefer 4 stroke 80-100cc. Would consider a 50 that has been modded. Might even consider a KTM 50SXsr. Would really get excited about an NSF, and would also entertain an NSR. Prefer Honda, but would consider Yamaha, and even something like the Pitster Pro or Thumpstar. Must be WERA Mini50 legal. Want one already converted, I already have a dirt bike for him. Haven't had much luck looking on ebay or the classifieds on here. Anyone got something for sale?
Mountain Motorsports at the 407 exit has a "new" NSR. Call Phil in parts and tell him Draik's dad said to call him...
If you go the NSR/NSF route. The NSR will teach your child more than the NSF. The NSR is a great training tool. For an adult I would go NSF, the extra torque will help when racing the kids.