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How we score
No scores by eye: every score comes from a fixed formula applied to the spec sheet. Here they all are.
Where the data comes from
Our main source is Decathlon (website, spec sheets and press room). When a figure is missing, we look for it on the component maker's website, in specialist media, in independent tests and, as a last resort, in third-party shops. Every figure on every spec sheet shows its source. If sources disagree, we say so. If we can't find a reliable figure, you'll see “—”: we never make up specifications, prices or reviews.
The 6 criteria (0 to 10)
| Criterion | Formula |
|---|---|
| Range | Battery in Wh: 200 Wh = 0 · 750 Wh = 10 |
| Climbing | Motor torque: 30 Nm = 0 · 85 Nm = 10, +1 if it is a mid-drive motor |
| Lightness | Weight: 28 kg = 0 · 15 kg = 10 |
| Off-road | Suspension: none or no data 2, front 6, full 9; +1 if it is a mountain bike |
| City use | By category: city and folding 9, cargo 8, hybrid 7, trekking 6, gravel 5, road 4, mountain 3; +1 if the battery is removable |
| Affordability | Reference price: 3.200 € = 0 · 800 € = 10 |
The scales are fixed: adding new bikes doesn't change the scores of existing ones. If the input figure is missing, the criterion has no score.
Overall rating
Average of the criteria with a score. If a bike has fewer than 5 criteria with data, we don't give an overall rating.
Value for money
Average between performance (range, climbing and the better of off-road or city use) and affordability. It is based on the reference price, which may not be the current one.
Compatibility with your terrain
The recommender classifies the area into one of these profiles and applies these weights to the criteria:
| Profile | Range | Climbing | Lightness | Off-road | City use | Affordability |
|---|---|---|---|---|---|---|
| Flat city | 15 % | 10 % | 20 % | 0 % | 35 % | 20 % |
| Hilly city | 20 % | 35 % | 10 % | 0 % | 25 % | 10 % |
| Flat countryside | 30 % | 10 % | 10 % | 20 % | 10 % | 20 % |
| Mixed or rolling terrain | 25 % | 25 % | 10 % | 20 % | 10 % | 10 % |
| Mountain | 20 % | 35 % | 5 % | 35 % | 0 % | 5 % |
Compatibility = weighted average of the criteria × 10, as a percentage. If a bike is missing a figure, that criterion counts as 2/10 (a cautious score, so as not to reward missing information) and the recommendation flags it. The 30-second quiz uses these same weights and adds your preferences (folding, removable battery or lightness).
Estimated range (spec sheets)
Km ≈ (battery Wh × 0,9 usable capacity) ÷ consumption per km. Base consumption: Eco 6 Wh/km, Normal 9 Wh/km, High 14 Wh/km. It is multiplied by the terrain (flat ×1, rolling ×1,35, mountain ×1,8) and by the rider's weight (+0,6 % per kg above 75 kg, −0,6 % below); mid-drive motors use 5 % less because they use the gears. We show a ±15 % margin. These are indicative reference values: wind, temperature, tyres and how you pedal change the result a lot.
Savings calculator
Km per year = daily km × days per week × 46 weeks. Car: km ÷ 100 × consumption (L/100 km) × price per litre, plus parking × 12 months; CO₂ = 2,31 kg per litre of petrol. Public transport: monthly pass × 11 months. E-bike: 10 Wh per km × price per kWh, plus 120 € a year of indicative maintenance. All values can be changed in the calculator.