wierd small keyhole bike locks?

[xagent.swissx]

Ya- so I searched the forums but couldn't find any info on these locks.
I see them everywhere here in Chicago on bike locks. The keys have cuts that are sort of angled at different depths and angles on the both sides of the key, and are less wide, but thicker that average 5 pin house keys. Do you guys know what I'm talking about?
Thanks a lot-
Jamin

[Eyes_Only]

Do you have a picture of this lock perhaps?

[mh]

Look for "ABUS Plus" or "disc tumbler" (or "Abloy"), but as they are currently considered high security,
there's not much about them discussed in the open part of this forum.

Cheers,
mh