These are an amazingly low priced motor upgrade suitable for the vast majority of cars. The motor has a rebuildable can and endbell, so it can be serviced, and is fitted with ballraces. Brushes and springs can also be replaced.
These motors require an electronic speed controller with a turn limit (rating) equal or lower than the turn rating shown above. Lower the number = faster it spins + more battery it drains.
Please do not confuse these with the Tamiya Sport Tuned Motor (Part 53068) which although it has the same basic logo is a totally different motor. This motor will NOT function on the Tamiya TEU101BK and similar speed controllers (TEU103/104/302 etc etc)