Triathlon Bike Purple Air: Pure Efficiency
In triathlon and time trials, there’s no energy to waste: every second and watt of power counts. That’s why we’ve engineered the Purple Air to enhance your performance and efficiency.
Aerodynamics: The Vélobsessive Purple Air is built for maximum aerodynamics. With a highly streamlined carbon frame, ultra-fast aero wheels made of carbon, fully integrated cable routing in the handlebars, and numerous other details, the Purple Air is barely affected by crosswinds. You’ll be amazed by its incredible speed and low rolling resistance.
Time Trial Position: Handlebars, extensions, stem, spacers, drivetrain, crank… every component of the Purple Air can be adjusted to your exact physical needs—minimizing drag and maximizing power output.
Efficiency: In triathlon and time trials, every unnecessary gram is a gram too many. That’s why the Purple Air features an exceptionally lightweight carbon frame - light enough for agility but stiff enough to ensure no energy is wasted. Ultra-light carbon wheels, seat posts, and handlebars provide additional weight savings.
Drivetrain: The Shimano Di2 electronic shifting system ensures optimal power transfer to the road. With its synchronized shifting configuration, you don’t have to worry about front derailleur adjustments - just click “up” or “down,” and the system automatically selects the best gear for you.
Triathlon Bike Purple Air with Free Bike Fitting for Triathletes
Vélobsessive offers two bike fitting services tailored to triathletes: Bike Fitting TRI and Bike Fitting TRI Pro. The Bike Fitting TRI is included in the purchase price of the Purple Air. The Pro package is priced based on its scope.
Bike Fitting TRI
The Bike Fitting TRI is designed for ambitious recreational and amateur triathletes. It focuses on optimizing your aero position, including configuring the cockpit with handlebar extensions, spacer heights, reach, angles, and armrest settings. It also includes finding the right saddle position and selecting the optimal crank length. The “Bike Fitting TRI” is based on dynamic fitting services and includes testing the position on a simulator under movement and load.
On the Podium with the Vélobsessive Purple Air
Shortly after picking up his new time trial bike, the Purple Air, Bernd John won his first individual time trial. The 72-year-old runner-up at the 2022 World Championships for individual time trials secured victory over 22 km with an average speed of 41 km/h. Additionally, Bernd [year] became state champion of Rhineland-Palatinate (a German federal state) in the Masters 4 category (60+ years) riding his Vélobsessive Purple Air.
Triathlon Bike Purple Air Specifications and Components
In addition to the components listed below, we can also provide any other desired configuration. We frequently use Shimano Ultegra or Shimano Dura-Ace groupsets but can also integrate components from SRAM or Campagnolo. Feel free to contact us for a tailored offer!
Frame
Aerodynamic carbon frame
Internal Cable Routing
Flat Mount Disc Brakes
Fork
Carbon Aero Fork
Internal Brake Hose Routing
Flat Mount Disc Brakes
Cockpit
Carbon Stem
TT Handlebar
Full Internal Cable Routing
Aero Handlebar Extensions w. Adjustable Angle
Adjustable Spacers
Drive Train
Crank: Shimano Ultegra or Dura-Ace
Bottom Bracket: Shimano Press Fit
Derailleur: Shimano Di2 electronic shifting 2x12 Speed
Cassette: 12-Speed Ultegra or Dura-Ace
Chain: Shimano 12-Speed Ultegra or Dura-Ace
Shimano Dura-Ace Remote TT/TRI Shift Switches for Handlebar Extensions
Seatpost
Carbon Aero Seatpost
Wide Range Setback
Saddle
Selle Italia Watt Superflow saddle
Titanium Rails
Brakes
Shimano Ultegra or Dura-Ace Shift/Brake Levers
Brake Discs: 160mm Front, 140mm Rear
Accesories
Aero bottle cage with bottle: Elite Chrono CX
Pedals: Exustar E-PR200CKTi Titanium/Carbon
Wheels
Hub: Vélobsessive Straigth-Pull, Ceramic Bearings
Rims: Ultraligth Carbon Rims 45, 60 or 80mm, Hidden Nipples
System: Tubeless Ready
Spokes: Sapim CX Ray
Coice of Tires: Conti GP5000 TT, Vittoria Corsa Pro, Pirelli P Zero Race
Optional: Pillar X-Tra Lite Titanium Spokes
Optional: Disc Wheel
What Our Customers Say – Voices from the Vélobsessive Community
+120 5 Star Reviews on Google
Configure your Custom Triathlon Bike
After your order we will contact you to arrange a bike fitting appointment. After the bike fitting, we can determine the exact frame size and all configuration details such as handlebar width, crank length and gear ratio.
If you have already done a bike fitting, you can also send us the bike fitting data.
Choose your design
You can further customize the Purple Air’s design: For example, customize screw colors, handlebar tape, or decal colors to your preferences.
Purple Air
Purple Air Gallery
Captured moments from our rides and custom builds.
The Process of Getting Your Own Custom Bike
[ HOW A VÉLOBSESSIVE BIKE IS BORN ]
Every Bike Begins With You
01 - Bike fitting
~2 hours. We find your exact position on the simulator. Saddle height, crank length, handlebar width.
02 - Custom Build
Every component selected for your position. Hand-assembled in our studio near Zürich, Switzerland.
03 - Your bike
A bike built to your exact measurements. Not adapted. Not adjusted. Built for you from the ground up.




