There was no DRS zone on the start/finish straight in 2012 © Getty Images Enlarge Related Links Race:

Canadian Grand Prix

There will be two DRS zones for this weekend's Canadian Grand Prix after the FIA reduced the number to one last year.

The first year that DRS was used in Montreal there were two zones - one before Turns 13 and 14 (the final chicane) and one on the start/finish straight - but with only one detection point overtaking proved too easy; a number of passes were made in the first zone before being able to extend a large advantage in the second.

Having reduced the DRS to one zone in 2012, the FIA has now announced there will be two again this year. While there is still only one detection point, the first zone is located 55m before the right-hand kink known as Turn 12, making it 113m shorter than it was in 2011 and 63m shorter than last year.

The second zone is again after Turn 14, and with an activation point 70m after corner it is just one metre shorter compared to 2011.