A motorcycle rider has some choice of where to ride in the lane. The best choice is the blocking position, a little to one side of the centre of the lane. The blocking position discourages other drivers from trying to squeeze past the same lane as the motorcycle.
Position 1 - WRONG
The centre of the lane does not provide visibility around the vehicle ahead of you. It is coated with oil thrown from cars and is slippery when wet.
Position 2 – CORRECT
When travelling the curb lane or next to a parking lane, a motorcycle driver should be slightly to the left of the centre of the lane. This is your blocking position and protects you in case a driver opens the door of a parked car.
Position 3 - On multi-lane streets with or without boulevards
By travelling in this position – just slightly to the right of the centre of the lane – you’re in a blocking position, the proper riding position.
Position 4 - Centre lane
When driving on a road with three or more lanes, always ride left of centre unless you are in the extreme left lane, in which case you should ride right of centre.