Simple solutions are always the best. And with the boom in cycle-commuting we could all use a little more piece peace of mind. Assuming you don’t have the luxury of escorting your trusty steed to a corner office Sphyke has a keyless combination lock for your wheels and seatpost (and stem-cap, and saddle, if you want to go that far). Put off that TPS report just a bit longer and hit the break for more…your bike with thank you.


These products are for those times when you just can’t put confidence in a simple bolt. If you’re already using a high-security u-lock or chain these will be the icing on the cake.


Regardless of your ride’s style or type Sphyke has you covered. Solid axle or skewer, front or rear, even specialty types, e.g., Nexus, Phil, Royce, or Rohloff, all are covered. And I know if I was fortunate enough to own a Rohloff I’d be locking that baby down.


For those who live in NYC or Barcelona where bike theft if particularly egregious, or if you just can’t use any other saddle than your Brooks, you can lock down your saddle rails with Sphyke’s Saddle Lock M8. This of course presumes a certain clamp style.


Quite possible a truly unique product is Sphyke’s A-Head Stem lock. For most any threadless system now your fork/wheel and entire handlebar assembly will be secured from a devious 5mm allen wrench.


  1. I think for most applications a standard anti vandal bolt will do the trick, like the torx head with the pin in the middle

  2. I would only consider these “unique” by design. The concept is nothing new. I’m not drawn to the aesthetics of the Sphyke locks in any way…they’re entirely to big and bulky to install on any of my rides. I’ll stick with my Pinhead locks.

  3. I agree with Gabriel way too many moving parts plus I think with a big enough plier or bolt cutter you could open these right up. Now i could see would be nice for a lighter level of security as with only 3 wheels there only 999 combinations which can be tried in a matter of about 5-10 minutes and most likely will be the same on each lock which is why we run keyed latptop locks instead of the combination. Hopefully they’ve tested for beer can shims and the like.

    Now i can see the advantage to a system like this compared to pitlocks which i run or a security bolt. Having left my pit at home and gotten lucky that i didnt need it not having a special key would be nice or if you are the type to have your bike worked on by a shop not having to provide and have the shop keep track of a special key is a nice idea.

    If thompson made a single bolt clamp I would love to have that seat lock as pitlocks solution is not really that great and then you saddle is truly secure by only trying to block access to the bolts.

  4. This is total junk, too many moving parts to get seized with grit. Most people have too many pins and codes to remember as it is, last thing I want is to be left stranded because I cant change a tube because of memory issues. You could probable open it by applying pressure and spinning the code wheels like most three wheel combination locks. And it is as ugly as hell.

  5. When I told my neighbor I just take the bike through the grocery store and use it as a cart (backpack on top tube) he exclaimed, “Do they let you do that?” and I replied, I like to see them stop me!

  6. I don’t get all the whiners. Looks like a good product to me. It is kinda chunky and I probably wouldn’t get one for the stem, but it’s not that bad at the seat clamp.

  7. Thanks Bike Rumor, and thanks everyone, its great to hear the feedback. We are now available in select retailers or online to the US.

    Just to clarify some of the above concerns;

    From a mechanical standpoint, this is the lease ‘gimicky’ system of all. In terms of holding wheels on (#1 priority) we stuck to the trusty nut, over a strange 3 pin key or a radially shaped ‘pit’ or a whatever else.

    we wanted to protect the wheel – not reinvent it….. hehe

    The nut is universally regarded as the most effective fastener to exert torque.
    The Sphyke nut is CNC machined 10-8 steel rated to 35Nm. Along the same lines the rest of the system is held fast by normal cap or hex screws.

    Bulky! Ugly! It sits 19mm high, actually a bit lower than common QR. and 21mm diameter, the same as any washer.

    Once the black all weather cap is on its quite discreet. But yes, security won over looks.

    Carrying a strange tool every day in your pocket in the off chance that you will flat. Seemed bulkier to us.. and if you lose it… that gets ugly!

    Yes use torx, but don’t leave your bike in the same place, as these tools are accessible and cheap.

    This system has 3 rotors with 14 positions – equates to over 2700 combinations (enough?) with patented feature so you cant fudge it… Its defeated all challengers?

    Having a letter combination you can set the code to your initials – if you forget this you probably should catch the bus home anyway.

    Moving parts, combination locks have been around for years. Since release in 2011 there has not been 1 issue with this, in fact never have we had a return.

    Security – we’re solid – never has any wheel or saddle been stolen under the C3N protection.



What do you think?