The Ceepo Viper Frameset is a triathlon-specific bike that is designed for the rigors of long-course triathlons. Stability, comfort, and aerodynamics are all here and designed for the long haul.

 

There's lots going on with the Viper, but the feature that is most-remarked upon is the fork. The bayonet style steerer, along with the choice of braking options makes this a fork unlike any in the tri' world. You can chose to run rotor disc brakes with 140 or 160mm rotors, or direct-mount rim brakes, or center-bolt-mount (traditional) rim brakes. These three options are built into the fork, with plugs and covers keeping what you don't need hidden. And you can choose between cable-actuated and hydraulic-actuated as well. 

 

The bayonet-style fork, often employed purely for aerodynamics, is the base for an extremely adjustable stem that is both stiff and light thanks to integration. The steerer and the bayonet are connected via a plate, and onto that plate you bolt both stems and risers. There are effectively three stem lengths: 5, 7.2, and 9.4cm. There is 4cm of vertical adjustment as well. Ceepo also built the fork for steering precision, with a 1 1 /8" to 1 1/4" taper, the lower, wider dimension reducing flex in the fork legs.

 

The aero seat post is fabricated out of carbon-fiber. It's 350mm long. Here's something you won't find everywhere. The seat post is reversible. So that 25mm of setback can be switched to put the clamp 25mm ahead of the post as well. It's also designed to fit an internal battery for those who want electronic shifting.

 

The bike routes both electronic and mechanical shift cables internally. As a result, the intake and exit points can be fitted with either stops or ports depending on how you want to set up your shifting. There's a battery mount point on top of the left chain stay, but if you choose to run the battery internally, any number of tri' accessories will fit.

 

The geometry employed utilizes a relatively long front-center measurement relative to the frame size. This allows for great stability, aka easy, predictable steering when you're riding in the aero bars for a long time. 

 

The bike's shapes and carbon-fiber lay-up have been tuned for aerodynamics and compliance. The aero thinking here is that the longer you're riding, the more tiny aero improvements add up. The compliance thinking is that the better the frame damps road vibrations the fresher you'll feel at the end of the ride when you swap your cleats for sneakers.

 

Their aero concept extends to wheels. The fork and stays are wide enough to fit all the wide-rimmed wheels they've been able to test thusfar. Even the integrated TRP post-mounted brake under the bottom bracket is designed for this compatibility. 25mm is the maximum recommended tire size.

 

The bottom bracket standard is BB386EVO. The thinking here is that the 86mm width is good for aerodynamics and the 30mm wide axle is good for stiffness. Of course, with adapters most conventional thru-axle cranks can fit as well.

 

The Ceepo Viper Frameset is designed for the longest races.