FYI - the alarm on these can be beat without even touching them.
Street parking, in order of effectiveness:
private garage
chain to tree, fence, post etc... talking 10+mm hardened chain
cover
alarm
immobilizer (hidden switch(es) etc)
alarm disk lock (rear wheel is better)
regular disk lock
steering lock
the logic is visibility #1, requiring physical work #2. Combination of the above is better.
full coverage can get pricey. my break even is a bike every year and a half so i opted for state minimums at $93/yr.
I'm new to the bay too, but luckily i have a garage and i'm not IN SF.
Reading material - Interview with a motorcycle thief
and wecome

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