Most of what fits the 142xx series (including 14HBM) will fit the 14211 with a caveat: The control arms and axles are shorter on the 14211, so you can't just swap one of those. If you want to use the arms for another in the 14-series, you also have to use the axles. Same with the tie rods: make sure they can get short enough or the front wheels will just be hilariously toed-in. Of course, if you go for wider arms/axles, the tires will rub on the body even more. I ended up printing out this cover and it will fit if you relocate the radio and gyro rearward a little bit. That said, most other parts should be easily interchangeable. So, if you can find upgrades for another 14-series car, it will probably work. Word of caution: those "inexpensive" aluminum control arms available for these cars are complete and utter crap. There's so much play in the ball joints that you might was well not bother trying to steer. Source: I have a 14211 and the cheap "upgrade" aluminum control arms I bought were listed for the 14209/14210/14HBM and fit perfectly on the 14211... but I had to replace the axles with longer units to match. And then I returned to stock because those parts SUCKED. Incidentally, they also fit my "JETWOOD" JC14EP. It's almost like there's a factory in China pumping out these cars and just putting different logos/designs on the bodies. /s Seriously, don't buy these: https://www.amazon.com/dp/B0CNSM269G . I bought two sets (one for my Jetwood and one for my 14211) and they both had so much play between the balls and fasteners that the car was zero fun to drive.
