I have been doing a series of races on baseball fields and i have an issue that after about 2 or 3 laps when the track is a little damp or wet in spots my rear rims get stuffed full of sand and have even wore away most of my axle holders in some spots. Do they sell a rim that is a disk for the slayer to try and eliminate some of the build up inside the rims? This is what ended up me messing up the motor because it over heated bc i wasnt sure why it wasnt being sluggish till i looked and saw what was happening. Any ideas? by the way also how can i add pics to my posts to show you all what i am talking about? Because i have tried and it says about adding a URL for a pic and i dont have that since they are photos i have taken. Thanks guys