Culprit Legend Triathlon TT bike teaser

Culprit will be officially unveiling their all-new triathlon bike at Taipei Bicycle Show next week.

The bike won’t play nice with UCI’s 3:1 rule, so it’ll be triathlon specific. These teaser images only give a taste, founder Josh Colp says the really unique parts won’t be shown until the expo opens. And that they’re patent pending. Here’s what he is saying:

The bike was developed in cooperation with Trigon Cycles and I have worked closely with them to develop a new stem, aerobar and seatpost. The new Trigon aerobar/stem will be sold on the aftermarket by the end of the year as well.

The bike will be made in 5 sizes 49, 52,54,56, 58 to offer more size options.  It is compatible with both Trigon’s new bar/stem or Shimano PRO but for cable routing purposes we will sell it as a frameset all together.

Technically, it’s still in prototype stage, but it’s been on the drawing board for about a year with six months of design and 3D work put into it. Colp says it should be available in five sizes by the end of the year.

Culprit Legend Triathlon TT bike teaser


  1. I see post mounts plus cutout for behind-the-crown calipers. wow. Surprised they didn’t fair the downtube around the front wheel.

  2. someone needs to create a coating that u can spray a triathlete’s bike with that can repel the disgusting fluids and bodily skank they drip on their rigs. carbon porta-potty with aero-bars. disc brakes and triathletes= fail video compilation.

  3. @mudrock
    it doesnt follow the contour of the front wheel, but the downtube is dropped behind the fork crown so it sits pretty close. that’s the way a lot of other companies are doing it, less sensitivity to steering.
    smart top-loading stem, much easier to access face plate bolts that way for removal/transport.
    i dont know about the head tube puffing out in the middle. anti-narrow, anti-aero.

  4. I don’t see disc brakes having a point on a TT rig. The better braking will be far outweighed by the poor aerodynamics coming from a disc rotor and more importantly caliper sticking out in the wind.

  5. What you loose in aero from a disc brake, you would gain back at the most important head tube/ top of fork area where wheel speed. Is the highest.
    Also allows much cheaper construction wheels that can be optimised purely for aero shapes.
    Hydrolics will also be a godsend for cable routing.

    The dimpling at the top of the forks may also be aero specific shaping and nothing to do with brakes as well.

    • To everyone criticizing discs’ aero performance, I mentioned once before that Orbea has done extensive testing of disc brakes in a wind tunnel, and without the caliper the rotor actually improves the aerodynamics. It’s only a matter of creating a more aerodynamic caliper, and then discs will be beneficial aerodynamically.

  6. I’m also convinced that the secondary effects of disc brake implementation will out weigh the initial (albeit temporary!) setbacks. When manufacturers really have the chance to focus on creating aero carbon rims without having to worry about material need for a brake track, ridiculously light and aerodynamic rims will result, to a tune we have not yet known. The lightest carbon tubulars of today will be surpassed by lighter, deeper-section rims probably within the next few years, meaning that even if total wheelset weights remain close to current levels (1200 for high-end tubular aero wheels, up to 1600 for nice, reliable clinchers), as the weight is more and more centralized to the hub, the new rims will become stupid fast. Think of a ~200gr 40mm-section clincher tubeless rim (Zipp 303’s weight about 350gr). I can’t wait!

  7. Just for one more thought on disc aerodynamics, cervelo took a current model disc caliper and put it on their p5 and the aerodynamics was substantially higher.

What do you think?