Needing a long cable for touring to lock to bigger trees I got the aluminum crimp to make my own
believe me once the crimp was slammed tight wit a hammer, its not going to open again.
Best cable? Armored inside interlocking steel segments
http://www.abus.com/eng/Mobile-Secur...eel-O-Flex-950
I like chain locks
http://www.abus.com/eng/Mobile-Secur...el-O-Chain-880
and their folding lock ..
http://www.abus.com/eng/Mobile-Secur...it-X-Plus-6500
adequate, when no one wants to cut it ... the braided type .. Trek has something like it , now . double loop ..
that may be what you asked about..