Integrated Saddle Lock Concept Bike view

Featured on Korean design blog Designers Party, this concept by Lee Sang Hwa, Kim Jin Ho, and Yeo Min Gu utilizes a button-actuated joint at the seat cluster and an integrated saddle lock (combination digits right there on the saddle!) for quick rear wheel locking without supplemental locking mechanisms. More images after the jump.


No word as to whether or not it passes EN/ISO Vertical Fatigue testing at this time, but it’s certainly an interesting take on integration.

Integrated Saddle Lock Concept tech


  1. jay on

    Ok, its just a concept…..again So the only thing secured is the rear wheel? You can just pick the bike up and walk away because that seat isn’t secured to anything else. Also, a seat isn’t really a one size fits all, so I hope its comfortable, not to mention that combo lock may not move easy after it is covered in crap from the rear wheel. I would hope there isn’t any play in that “button” mechanism either.

  2. Slow Joe Crow on

    Show me the hardware. You can do anything in a computer rendering including hubless wheels and cableless brakes. Also even if this was buildable, how do you secure this to a staple rack?

  3. raphael on

    Um…Just get an Abus rear wheel lock. Just as effective. Much cheaper and you can use it on so many different bikes.

    Ill give them props for looking for a solution, but they lose all points for investing more time modelling it than actually making something useful.

  4. Andre on

    What is valid here is the idea and creativity…some people out there are trying to contribute to the industry…some people in here …well…

  5. Doug B on

    Guessing to lock the bike you use the seat lock after passing a rail between the rear wheel and frame, then lock the seat over the top.

  6. Pete on

    So let me see if I have the theft-proof concept…the potential thief will take one look at that saddle config, balk at hopping on, & thereby foil any attempt to ride away?

  7. JBikes on

    I think the intent is that you lock up the frame and front wheel with a conventional lock system. The rear wheel is secured via the saddle lock thereby eliminating the need for a separate lock or cable?.
    Or one could pass the saddle around an object if clearance allows.
    Not all bike locking requirements need to meet the needs of high crime areas.

  8. HipHopAnonymous on

    All I want to know is where are the disc brake caliper and front derailleur mounts? Oh, and why is their a seat collar if that seat post is integrated?

  9. JBikes on

    The point is that in many situations, one doesn’t, nor statistically needs to, bring out the most robust security on their bike. In many areas – say my secured parking garage bike park area – a very simple lock will due just to prevent the dishonest.

    My comment regarding “high crime” was more with regards to propensity for bike theft, based on bike theft market as well as commonality of use (i.e. a bike that shows up at a store once a month is unlikely to get targeted vs one that is locked in front of an apartment every night)


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