Building a motorized bicycle using an 80cc engine kit from ebay and a Huffy Nel Lusso cuiser bike purchased from Walmart.

I spent $110 on the eBay engine kit & $119 on the Huffy.

The eBay seller for this kit was "smartmotor"...here is a link to his items for sale http://ebay.us/Gc44xN

If you prefer shopping on Amazon, here are similar bike kits.
https://amzn.to/2XOmpXJ
https://amzn.to/2YKl7sR

I bought my extra brake on amazon...they have a 73-91mm reach, but they were too short to fit properly. Here is an affiliate link to the one I bought on Amazon:
https://amzn.to/2El550K

And feel free to buy me a beer!
https://www.paypal.me/SteveDoesStuff