I didnt like or understand how the hub on the source hub worked, so instead i created my own non flexable hub that slides into the wheel. it is designed to use 684ZZ EZO bearings just like the original designer used. Originally it was designed for the Ranger RX RC airplane, but obviously it will work for a ton of different applications.
auhouhz gets all of the credit for the tire in this, i just made the hub. that is why i didnt add the original tire into the files, go and download it from him. the skinny version is just scaled down by %50 to reduce the weight (obviously) and i was really happy with the results.
tire is printed with Ninjaflex 85A and if amazing, the hub is just simple pla and fits like a glove.
in the future i will scale the overall size down for smaller RC models, for now this is a HUGE 117mm wheel that is very soft.