Re: new member first build
The grubee 66 is a great motor. I have had mine problem free for close to 4000 miles now. The motor will serve its purpose stock, and on top of that, it's a great motor to modify (it likes it). The schwinn you have should be alright for the job, if you take your time and secure everything right. It doesn't sound like your planning on off-roading or racing. Everyone has to start somewhere. The motor can always be transferred to a different bike easily at a later time. When you get started be sure to take pictures to share your builds progression.
Mile High Motor Bicycle
EZ Motorbike Dealer - Denver, CO