I just received my ezrun 60a + 5.5T yesterday and what can I say...it's amazing, put them in my Slash with stock gearing and a small 1750mah 2s lipo, it almost pulled a wheelie on pavement! But frankly speaking, very hard to control hard packed track with loose dirt on it, I definitely going to swap my stock tires to buggy tires, still waiting the 17mm adapters to come, hope this will perform better....