Locks that work

Wasn't sure where to post this, but I have a kyrptonite new york m-18 lock (couldn't fit the mini fahg around my frame and stupid deep section rear wheel, ha ha) I was wondering if anyone had any advice for ways to transport this large, heavy lock on my frame, specifically for times when I don't need my backpack for anything else. Carrying the lock around in the bag gives me nice sweat patches and starts to do my weak, sofa ravaged back in after a while.

Have a look at the lockblocks from twofish. Those might work for the M18.
Otherwise i don't see any useful options with the M18.

For all the security it provides, i would never carry a M18. If the Fahg doesn't fit, the NY-Lock would be my next choice. It is a bit thinner then the M18 but still uncroppable and oh so much better to carry.
Abus locks are much better in that regard, there is a myriad of lock mounts available for anything including the X59.