Actual monetary worth of the bike is actually negligible, but I figured the topic would be accurate for other readers. The worth of the bike is weighed through my dependence on it. It is all I have, and I put hundreds and hundreds and hundreds of miles on it. I have exchanged and upgraded several parts, and have no intention to replace it with a motorized vehicle anytime soon. I am VERY dependent on this pedal machine.
I am located in Northern California. Places I have parked and locked in the last year? An hour and a half north of Reno NV, San Francisco, Oakland, Berkeley, Davis, and most locking is done in the Greater Sacramento area. My bike goes places. For those unfamiliar, most of those cities are particularly notorious for bike theft. About three and a half of those cities are college towns.
I am currently using the Sheldon Brown locking technique in combination with locking the frame and the front tire. The locks I am using are a Kyrptonite Series 2 (standard 4inX9in), a Kryptonite Evolution (mini-lock), and a Kryponite 4-foot cable to secure my panniers, helmet, and rack. I may ride a road bike, but I'm no "weight weenie". Niether of those Kryptonite U-locks are tubular keyed, btw.
I am less concerned with picking as I am with brute force. Though I don't want to give myself the short end of the stick in defense of picking, the OVERWHELMING majority of bike thefts are a result of brute force. I would like to keep the budget under $200, but locks can be used on any bike and don't stop there. Before I parked the motorcycle for good, I often used a lock and cable to secure my riding gear. Weight of the lock/lock-chain is an important factor. I'd really rather not carry twelve extra pounds of lock.
My main questions are these:
Just how secure should I feel if I'm using these newer Kryptonite U-locks as my primary security?
Would it be worth my time to purchase a new set-up, or to just keep doing my routine?
What lock/lock-chain combination would you suggest? It does me no good to have an amazing lock if the chain is crap.
Maybe I've missed something. I will try to update as things come to mind.
As a note, a cable is not an option to lock anything other than accessories like a saddlebag or helmet. Below is a link that references bike theft, and gives a good explanation of any bicycle jargony-buzzword I've mentioned .
http://www.sfbike.org/?theft_locking