These are replacements tires for the TFX Chassis.
The Front O-Rings are available in .340" size (Standard size delivered with TFX RTR chassis) and .355".
The Rear Tires are high quality SIlicone Tires specifically designed to fit our TFX Rear Wheels. The ID is set to fit our .170" OD Wheels. Width is set to .180". They are available in .352" (Standard size delivered with TFX RTR chassis) and .378". Install with the filleted side towards the chassis. They are not designed for .200" width wheels.