the only thing that breaks on them is the down tube over time, a long gusseted wrapped around will help. There is a missing gusset on the left foot peg area. The stupid foot pedal on motor and frame wear out something bad. You need to grind the weld on the backside of the frame to remove the foot peg slug and replace with a new one. If you cant make it JRtrikesports sell them to weld back in.
https://www.jrtrikesports.shop/colle...eg-replacement
If your going that far you better fix everything worn out. The frames always bend at the rear to one side. That's due to crashes, no gusset in the world fixes that, but you need to address is. I'd highly invest in swapping foot petal designs so you do not wear out the engine casting anymore. Here's mine. I like to remove the dumb sheet metal lower frame gussets and have tubing put in. You do not need that upper chain roller. It's honestly pointless, just the bottom one.
I use a atc200s foot pedal and cut it up until it met OEM location dimensions and cleared everything. Master cylinder I use trx450r and made bronze bushings with a grease fitting so it can never wear out. Not like OEM steel on steel. This also stopped the brake line over the exhaust which can melt away. This all is one of the biggest fails on the 200x, plus the axle set up and kicker gears. Rest of the toy is pretty good. Oh throw the seat latch away, just rubs the frame away.