A skilled and determined locksmith can duplicate a key for the SW-Motech saddlebags using an Ilco X66 YH26 key blank and a bit of creativity. Useful if you want a spare with a thin (not rubbing covered)

handle for a less bulky key ring.
And a shout-out to the guys at Dup-A-Key locksmith in San Diego’s Pacific Beach neighborhood for sacrificing several key blanks to find the right one and then not charging me extra (I tipped well though).
I think the trick is keeping the shoulders of the key, but shaving them a little narrower to fit in the dust cover of the lock.