Horizontal Image of Vélobsessives Purple Air Triathlon Bike on a Black background with subtle orange gradient.

PURPLE AIR TRIATHLON BIKE

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.

Custom TT bike at the Vélobsessive studio

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.

Purple Air road bike detail in purple tones

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.

Book Bike Fitting for Triathletes
Detailed position analysis at Vélobsessive

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.

Read the Blog Post

Bernd John riding the 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 

Geometry

What Our Customers Say – Voices from the Vélobsessive Community

Five-star rated Vélobsessive customers on Google reviews

+120 5 Star Reviews on Google

Triathlete Anna Hofstetter riding a Vélobsessive TT bike

"The Purple Air is an incredibly fast bike. For me, it’s a great opportunity to have a partner like Vélobsessive by my side supporting my sporting ambitions. What means a lot to me is knowing my bike is perfectly 1:1 tailored to me, so I don’t have to compromise."

Anna Hofstetter

Triathlete, Germany

Vélobsessive customer Christian testimonial

“Very friendly and competent from start to finish!

The coffee was delicious too... I'd gladly come back anytime. Thanks, Thomas, for your prompt and excellent work! Wishing you a great cycling season and continued success in your business.”

Christoph Stirnemann

Road Cyclist, Switzerland

Vélobsessive customer Priska testimonial

“Whether you're a pro or just a hobby cyclist, you're in good hands with Thomas! Highly professional, personal, with attention to detail, and a relaxed atmosphere. It's so exciting to be able to feel and implement even the smallest adjustments to the bike. I can't wait for my next ride. Thanks, Thomas!”

Priska Baumann

Triathlete and IRONMAN Finisher

Vélobsessive female cyclist testimonial

“A colleague and I booked the Dynamic bike fitting. Thomas took plenty of time for us, explained everything in detail, and gave us personalized advice. We would definitely book our fitting with Vélobsessive again. The price is very fair”

Samira Bombach

Road cyclist, Switzerland

Bernd John riding the Vélobsessive Purple Air

"After the new adjustment, I can stay in the TT/Aero position for longer. And by longer, I mean 3+ hours! After adjusting the shoes, the pain in my feet is gone. Thank you for the service!"

Bernd John

Time Trial Specialist, Germany

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.

Wheelset
Groupset

Purple Air

CHF 8,900.00
Sale price  CHF 8,900.00 Regular price 
Payment methods
  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • Twint
  • Union Pay
  • Visa
Vélobsessive Purple Air premium carbon TT bike profile

The Process of Getting Your Own Custom Bike

1

Test Ride

you will love it...
2

Configure Components and Personalized Offer

accept offer or online order
3

Personalized Bike Fitting

(Included in the Price)
we build your custom bike based on your data
4

Enjoy Your New Vélobsessive Custom Bike.

And Ride Fast.
5

Join the Vélobsessive Owners Club

[ HOW A VÉLOBSESSIVE BIKE IS BORN ]

Every Bike Begins With You

Professional Bike Fitting at Vélobsessive Switzerland

01 - Bike fitting

~2 hours. We find your exact position on the simulator. Saddle height, crank length, handlebar width.

Wheel and tyre detail of a Vélobsessive road bike

02 - Custom Build

Every component selected for your position. Hand-assembled in our studio near Zürich, Switzerland.

Paradox custom road bike with blue frame

03 - Your bike

A bike built to your exact measurements. Not adapted. Not adjusted. Built for you from the ground up.

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