Earlier today we posted about the imperfect solution for a "theft-proof" bicycle and asked if any of you had ideas. Turns out some of you did! (More importantly, with actual illustrations.) Check out via EC's clever solutions, one of which turns the seatpost (which often gets stolen) into the lock itself.
Thanks EC!
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unfolds and rotates from the frame in such a way to create a space inside the frame suitable for locking around a vertical or horizontal post or bar.
I have them uploaded here:
http://www.coroflot.com/public/individual_set.asp?from_url=true&sort_by=1&set_id=133183&individual_id=176919
These are probably surmountable obstacles, but I don't know how to get around the fact that seatposts are just greasy. This also doesn't solve the problem of stolen saddles.
Most seatpost have been (to a certain extent) greased, for easy adjusting it's height.
Which means that by using it s the lock, you'll get your hands dirty (not fun with grease/dirt, it's very persistent :))
On rainy days, it'll also get rain in the hole where your seatpost came from, might wash off your grease, and introduce rust on places you didn't expect (although that last argument is, i must admit, fairly poor)
Nice idea, but there's quite some caveats to keep in mind.
Also, the circular key in the graphic is vulnerable to picking by way of bic pen, look it up, it's not even hard or time consuming to do. double sided flat keys are harder to pick. And for the record, the frame and the back wheel are the most expensive parts to replace if stolen.
http://www.youtube.com/watch?v=b2885aR6o6s
Also, I would want to make sure that the frame is secured primarily. If the stem/bars can be removed with an allen key, the frameset would not necessarily be secure.
I am not trying to shoot holes in the idea. I think it is a great concept and I realize that it is just that, a concept and not a refined design.