In this video I use a Swing Arm from a King Cobra 50 CX50SR, cut it, and fit it into the end of the MX Swing Arm. The swing arm is fully adjustable for chain tension. I have linked the type of swing arm which can often be found on Ebay for $50 - $65 shipped. Also in the very near future the rear brake will be offered on Ride or Die research and Development!
All Amazon links are Affiliate links. The rest I get zero kick back.
Buy used since you will be chopping it anyway! https://kingcobramoto.com/product/swingarm-2020-cobra-cx50-king/
Rear brake bracket coming soon!
https://rodrandd.com
Brake Caliper to left Handle bar
https://amzn.to/3NZnl4o
Rear Brake disk
https://amzn.to/433m80z
Rear wheel
https://amzn.to/3pugplI
Various Bushings
https://amzn.to/42EWLSq
https://amzn.to/3W0bWDI
Rear Shock options DNM and JOFYH
https://amzn.to/3LRnFk0
https://amzn.to/3Q5JXky