You unlock this door with the key of imagination. Beyond it is another dimension – a dimension of sound, a dimension of sight, a dimension of mind. You're moving into a land of both shadow and substance, of things and ideas. You've just crossed over into... the SEMA Zone.

With apologies to fans of The Twilight Zone, we couldn't help but recite those iconic opening lines when we happened upon these RK Concepts custom motorcycles here at the SEMA Show. The fact that these crazy two- and three-wheeled machines sit in a prominent position right outside the main auditorium certainly doesn't hurt the impression they make on showgoers.

There are five concepts above: The RK S, RK Spring Frame, RK Chain, RK Thing and one more that doesn't seem to have a name but features a frame that's almost completely round. We don't really have words to describe them, other than to say that the designer, Rafik Kaissi, swears each of them can indeed be ridden. Check them all out in our high-res gallery above.


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  • 29 Comments
      floppypawltd
      • 2 Years Ago
      Cool Steampunk bikes!
      dsherline
      • 2 Years Ago
      The one with the knobbies and the one that looks like giant chain look interesting. Not comfortable, just interesting. I'll take my 23 y/o, 210k + mile Electra Glide over either of them anyday, though.
      banzairx7
      • 2 Years Ago
      I helped build the ignition system for the three wheeled thing. Don't know the builder, it came through the local Aprillia shop a friend of mine owns. It was interesting for sure. The suspension design was really unlike anything I'd ever seen. Not sure how well it worked. Can't say I was a fan of the ascetic design though. Also it was OMG loud. At idle it would make your ears ring. The grips are stainless steel wire wrapped around the bars which made the throttle kind of painful to work.
      dnsweetman6969
      • 2 Years Ago
      The clown who took 9th place at Surgis this year needed his mommy as he was such a f=cking baby about loosing. Damn the thing you called a bike looks like a kids toy. Baby tires on the rear. If you want to win, build a bike not a glorified Big Wheel for kids. Wah Wah Wah.
      LJ
      • 2 Years Ago
      Inspired by Twilight Zone? More like inspired by Metalocalypse!
      Pirate Imageing
      • 2 Years Ago
      looks nice but probably not comfy to ride
      dnsweetman6969
      • 2 Years Ago
      Stick to cutting hair.
      Brutal
      • 2 Years Ago
      Cool looking at first glance ... but close observation ... they look like nearly impossible to ride death traps … LOL!
      GeeDavy
      • 2 Years Ago
      There's a reason no one has ever designed bikes like these. It's called taste.
      Mark
      • 2 Years Ago
      these things are a joke, stupid art crap for people who don't ride
        Gubbins
        • 2 Years Ago
        @Mark
        They're not intended to be ridden, they're intended to be art. Whether you like it or not, they are art and they are incredibly well crafted with a wild imagination behind them. Would I want to try to ride one? Nope...could get killed or de-balled. But would I put one on display in my foyer? Yep.
      stever
      • 2 Years Ago
      wow simply incredible! and finally a departure from the "custom" bikes everyone else seems to be building these days!
      jkhsns
      • 2 Years Ago
      Mechanical ass-breakers.
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