The Model Motors AXi 2204 range of motors are light-weight brushless motors suitable especially for indoor aerobatic models up to 280g (9.8oz) in weight. These motors have an integrated prop saver.
Although very light-weight (28g or 0.98oz), these AXi motors are very robust. The hardened steel shaft is supported by two ball-bearings and the power output is amazing from such small brushless motors.