[Closed] Canyon AL 8.0 (2013) Avid Elixir 5 Rotors

To cut a long story short... My Bike as above is currently having the rear wheel repaired by Mavic under warranty.

I have a spare wheel but stupidly I never took down the size of the Avid Elixir rear rotor on the bike before I sent it off.

I would like to buy a spare Avid HS1 rotor to fit to the rear wheel. Getting through to Canyon is frustrating 2-3 days before email response and calling them results in waiting etc whilst I'm at work.

Wondering if anyone out there with the bike or knows someone with the stated bike can tell me what the standard rotor size is on the rear of this bike.