Blog
Aerodynamics, physiology and applied physics for cycling pacing.
- aerodinámica
The aerodynamic impact of the time-trial skinsuit: a CdA-based quantification
The time-trial skinsuit is one of the best aerodynamic investments per euro. We quantify its impact in CdA, watts and seconds.
8 min read
- contrarreloj
Where watts matter most in a time trial: power, CdA and speed
Not all watts pay off equally. Using a physical model, we analyse when aerodynamics dominates a time trial and when weight does.
7 min read
- aerodinámica
How many watts you save in the peloton: quantifying the draft after Blocken (2018)
Deep inside a large peloton, drag falls below 10% of an isolated rider. We quantify the power saved by drafting, after Blocken (2018).
7 min read
- aerodinámica
Aero leg covers: what you actually gain by covering the leg
The legs are among the cyclist's largest drag sources. We quantify, with a physical model, what covering them actually gains.
5 min read
- aerodinámica
How to choose a TT helmet for your head, back and shoulder position
The fastest TT helmet does not exist in the abstract: it depends on your head, back and shoulders. How to choose one for your real position.
6 min read
- transmisión
OSPW pulley cages: how many watts you really gain, and whether the weight is worth it
Oversized pulley wheel systems (OSPW) promise free watts. We quantify their real friction saving against their weight penalty, and compare it with waxing the chain.
6 min read
- aerodinámica
WorldTour time-trial skinsuits: Santini, Pissei, Vorteq and Bioracer, and what really separates them
Santini, Pissei, Vorteq and Bioracer dress the WorldTour. We compare their aerodynamic approach and what separates their suits from stock ones.
7 min read
- aerodinámica
Aerodynamic analysis at the Tour de France: why measuring your CdA changes everything
Above 45 km/h, 80-90% of your power goes into fighting the air. How Tour de France teams work on aerodynamics and how to measure your own CdA.
8 min read
- CdA
How to measure your CdA without a wind tunnel: the Chung method, step by step
The virtual-elevation (Chung) method estimates your CdA from a normal ride with a power meter and GPS. Step-by-step protocol and common errors.
7 min read
- W′bal
What W′bal is, and why your pacing falls apart on the climbs
The CP/W′ model explains why you blow up on the climb even when your average power 'adds up'. What W′bal is and how to use it in your pacing.
6 min read
- pacing
Power pacing in a time trial: the physics behind every watt
A time trial is not won by pedalling hard the whole way, but by placing watts where the terrain and the wind demand them. The physics, explained.
6 min read
- meteo
Weather by ETA: why the time you pass each point changes everything
The wind at the start is not the wind three hours later at km 90. What changes when you plan with the forecast for your actual time of passage.
5 min read