TrainingHow to Ride a GPX Route on a Smart Trainer — Apps and Step-by-Step Guide
Turn a GPX file from Komoot, Strava or Garmin into a smart trainer ride. What you need, which apps accept your own file, and how to avoid flat routes and sudden walls.
Gear & maintenancePower Meter Zero Offset (Calibration) — When and How to Do It
A zero offset isn't a factory calibration — it resets your power meter's zero before a ride. When to do it, how to read the number and what a sudden jump means.
Training15 legendary climbs you can ride on your smart trainer this winter
Alpe d'Huez, Ventoux, Stelvio, Zoncolan, Angliru and ten more: gradient profiles, where each one gets steep and how long it takes at 3.0 W/kg.
WattLog features30 Metres Left Where I Turned Back — a Second Attempt at St. Anne's Mountain and Climb View
A climb split into stages: how far to the top, where it's steep, where to recover. How Climb view came to WattLog.pro and what the ride data showed.
WattLog featuresIs my endurance improving? Efficiency factor, cardiac drift and cadence
EF, cardiac drift, heart rate trends and cadence efficiency on the Progress page — how to read them, and why my EF rose 29% in one season.
WattLog featuresHow to read the Progress page in WattLog.pro — a guide to all 18 cards
A map of the Progress page: which cards to start with, what each of the 18 shows, why a card can be empty and where to read more. Based on a real season.
WattLog featuresWhere do I lose watts, and when do I ride? Power by grade and training habits
Power by grade and the “When you ride” card in WattLog.pro: 63% of FTP on the flat, 98% uphill — and what that says about pacing.
WattLog featuresWhat kind of rider am I? Power curve, critical power and rider profile
Power curve, critical power, rider profile, records and W/kg on the Performance tab — on my 2026 season. Why the app called me a sprinter.
WattLog featuresBuilding fitness or wearing myself out? Reading my season in the Form tab
I built 18 charts and didn't understand them myself. My 2026 season on the PMC, TSB, ACWR and recovery alerts — how to read the Form tab in WattLog.pro.
WattLog featuresAm I training in the right proportions? Zones, energy systems and polarisation
Time in zones, energy systems and intensity distribution in WattLog.pro on my season: 1 polarised week out of 24, the rest a pyramid.
WattLog featuresFrom 1.27 GB to 35 MB — how I slimmed down the WattLog.pro database
An hour of riding took 1.4 MB in the WattLog.pro database. With compressed per-ride streams the same database weighs 35 MB, without losing a single sample.
WattLog features1.3 km Short of the Summit — How a Failed Ride Built WattLog.pro's Power Guide
144 km, 400 TSS and a turnaround below St. Anne's Mountain. What the data said about pacing the climbs, and how Power Guide was born.