I don 't bash.lol I race only.. I used the ones that came in the kit BUT they did not come with inserts. it took me a week of googling to find the parts. after searching Rc mart was first to order.. a month later got em glued em raced it didn't like the looseness sliding... went to A-main got some foams they work great. Amain has some good stuff then I ordered some stuff on ebay and found nitro hobbies .com has great fast shipping and a lot of TT 02 items rctech ,com and about ten others in the usa has great parts. google or ebay for tires