Most brushed motors work good from a reputable company. Tekin, Novak , Holmes Hobbies etc. I've used alot of the integy motors also. 35t and 45t on 2s works good 45t and 55t works good on 3s also. Ive ran the titan 12t in a venom creeper on 2s and for some reason it worked great but when I tried it in an axial it didnt like it. Also the stock axial ae2 and 27t motor works pretty good for trail running.