The brake pads should NOT be an issue, but I would suggest you raise the front of the seat which does make it work MUCH better.
Running Shinko E705s on my '15 in '16 - the front 120/70 EASILY lasted the ride from Kelowna, BC to Alaska and back [replaced after 30,169 kms], but the rear required replacing in Anchorage at 5,116 kms, because I did NOT want to be 'at-the-side-of-the-road' SOMEWHERE IN THE FAR NORTH
w/ a worn-out rear tire(!!!) looking to find another one
replaced by a TKC80 knobby which EASILY made it back to Kelowna, ultimately going 9,075 kms.
LOTS of motorcycle shops along your Canadian route once you're back in the southern part.