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Your frame and wheels might be ok, but someone could still take your Rotor cranks in about 2 minutes if they knew what they are worth.
I can't say if there is more bikes stolen here than an average UK city, but any lock can be broken or cut and I don't want to see you lose your pride and joy! Be careful where you leave it locked and for how long (never over night) and you will probably be okay.
I hope you have a beater as well and you aren't locking that up in Manchester mate!