pololu wheel (42x19)

is it possible to put a wheel encoder onto the pololu wheel (42x19mm) which is fitted to the shaft of RC servomotor?? is there any bracket that can hold the RC servomotor and the pololu wheel encoder???
is it possible to put a wheel encoder onto the pololu wheel (42x19mm) which is fitted to the shaft of RC servomotor?? is there any bracket that can hold the RC servomotor and the pololu wheel encoder???