BikeX Launch - Spring 2026 Pre-sales
You have power. You have heart rate.
But do you really know what numbers to target?
❌ With poorly calibrated efforts, you can stagnate or give up training.
❌ FTP tests are exhausting, require mental preparation and lack accuracy
🚴♂️2️⃣ You know Zone 2 is essential. But are you training at the right intensity?
✅ With well-calibrated efforts, your zones can improve by 20% in 2 months.
🫁🔬🔥 Perform a ramp test with BikeX and connect your sensor data to your physiology.
By analyzing you breath and CO₂ output, BikeX delivers precise, reliable training zones.
BikeX is designed for comfort: easy to fit, effortless to wear, and zero interference with your effort.
Just clip it on, connect your sensors, and let your metabolism talk.
Simple. Reliable. Repeatable. Done in under 15 minutes.
Train smarter. Progress faster.
Pre-launch special offering
579€ instead of 829€ (excl. VAT)
Unique gas sensing technology based on 20 years of R&D at CEA LETI
Validated agains lab systems
Compatible with all home trainers
Works on mobile app
Meet our ambassadors
Nathalie: "To perform, you need to know your real physiological limits"
Aurelien: "With BikeX, it's like having a sports lab directly at home"
David: "With BikeX, I can test right before important races and tune my pacing"
🚴♂️ For cyclists and triathletes who train and have sporting goals
❌ FTP, cardio, ready-made formulas... These methods are approximations. Your physiology is unique.
❌ Lab test? By appointment at a center, a lab test costs between €150 and €200.
❌ Without reliable data, how can you know if you are making progress?
✅ BikeX measures your training zones with lab-level precision
✅ Works on all home trainers
✅ A simple test that lasts 15 minutes
👉Built on 20 years of R&D
PAIRFS technology is unique and is based on more than 20 years of R&D carried out by CEA LETI, a major research center in Europe, and a portfolio of 11 patents.
👉Validated against lab systems
You can request the validation report by becoming an early adopter.
👉More than 800 athletes tested so far with our technology
👉Simple and easy to use
1️⃣ With the app, connect your bikeX and your home trainer
2️⃣ Setup the mask and get on the bike
3️⃣ Perform a ramp test (about 15 minutes)
4️⃣ Get a full report with detailed analytics, respiratory data and training zones
It's all on the video 👇
Meet the team
PAIRFS is a company based in Grenoble, France, at the heart of one of Europe’s major technology hubs and in the heart of the Alps.
We are currently a team of three at PAIRFS, and we rely on many engineers from the local ecosystem to design and develop our products. We are also fortunate to have many volunteers who help us validate them on the region’s legendary roads.
We are launching the BikeX project in pre-sale to fund its production.
Support us in this project!
🔥 BikeX is available for pre-order at 30% off – Spring 2026
Measure your real physiological zones and optimize your training with precision.
Join the first users and get ahead of the competition.
👉 Available in early access on Indiegogo
📦 Delivery date: December 2026
⚡ Very Early Adopters (only 50 units)
Early delivery: September 2026
Direct access to the team
Help shape the final version of the app
2 years warranty
No maintenance. No consommable.
Register to be informed about the campaign