佐敦谷玩F104 用咩TIE 較好

白鴿 issue may be due to your ball diff... you need to make sure it is not dirty and not dry (I clean it and apply grease every time after I play), and not too loose, you can gradually tighten it until there is no more 白鴿.

not durable at all. front tires are gone after one pack of battery