I am looking for a small cable lock that will fit into a back jersey pocket. This lock doesnt have to be heavy duty. I also remember a lock that was somehow incorporated into the waterbottle cage. Anyone ever seen that before?

There are lots of small locks on the market. Check your local bike shop. All of them can be cut with $1 wire cutters, though, sometimes in just a couple of seconds. Ski shops sell even smaller and cheaper and more easily cut locks.

Luggage lock + tiny cable.

I made up my own with hardware store parts. an aluminum piece gets banged closed
with a hammer to lock a loop in the ends..

I made mine 10' long to use trees and picnic tables in my campsite.

Is this what you mean? The Abus Bordo "Lite" versions come in at 650g weight (albeit at a cost in security). The heaviest ones are ~1.5kg. The tipical model expands to form an 85cm enclosure.

They come with a casing that can be mounted instead of the bottle holder, or you can stick the lock into an actual bottle holder if you find one that fits.

yeah,i agree with you , Ski shops sell even smaller and cheaper and more easily cut locks. thanks for your sharing,

https://www.knog.com.au/gear-locks/milkman.phps

https://distilleryimage9.s3.amazonaws...381b5c25_7.jpg

This is a good lock if you just want to lock up your bike while you go to the coffee shop or duck into the shop quickly for a carton of milk

Try the Milkman lock by Knog. It is small a light enough!