Port de Lers from Massat
Port de Lers from Massat: 15.4 km at 5.7% average and 875 m of climbing, up to 1,517 m.
- Distance
- 15.4 km
- Elevation gain
- 875 m
- Average gradient
- 5.7 %
- Start altitude
- 652 m
- Road
- Departmental road
- Surface
- Paved throughout
- Steepest 500 m
- 9.5 %
- Hardest 2 km
- 8.2 %
- Hardest kilometre
- km 9 · 8.0%
- Above 8%
- 4.2 km (27% of the climb)
- Difficulty index
- 5.4 Sustained
FIETS index: Δaltitude² / (10 × distance) + max(0, summit altitude − 1,000) / 1,000, lengths in metres. How this index works (article in French)
How long does it take?
| Level | Estimated time | Average speed |
|---|---|---|
| 2.0 W/kg — 140 W | 1h33 | 10.0 km/h |
| 3.0 W/kg — 210 W | 1h04 | 14.4 km/h |
| 4.0 W/kg — 280 W | 50 min | 18.4 km/h |
Estimated for a 70 kg rider on a 9 kg bike, in still air, at a steady effort and without stopping. Wind, a stop at the fountain or a wheel to sit on move these figures by several minutes.
The route
Climb profile
- 10% and above
- 8 to 10%
- 6 to 8%
- 4 to 6%
- under 4%
Kilometre by kilometre
| Km | Gradient | Altitude at the top of the km |
|---|---|---|
| 1 | 5.4 % | 706 m |
| 2 | 1.0 % | 716 m |
| 3 | 3.0 % | 746 m |
| 4 | 2.5 % | 771 m |
| 5 | 5.7 % | 828 m |
| 6 | 6.0 % | 888 m |
| 7 | 6.7 % | 955 m |
| 8 | 7.5 % | 1,030 m |
| 9 | 8.0 % | 1,110 m |
| 10 | 7.6 % | 1,186 m |
| 11 | 7.0 % | 1,256 m |
| 12 | 6.1 % | 1,318 m |
| 13 | 6.8 % | 1,386 m |
| 14 | 3.3 % | 1,419 m |
| 15 | 7.1 % | 1,490 m |
| 16 (partial) | 6.6 % | 1,519 m |
Download the GPX track All climbs of this col
The other climbs of this col
- From Vicdessos (Val-de-Sos) 11.3 km · 7.1 %
Frequently asked questions
How long is the climb to Port de Lers?
The hardest climb of Port de Lers, from Massat, is 15.4 km long for 875 m of ascent, i.e. 5.7% average.
What is the steepest part of Port de Lers?
The steepest 500 m sits at 9.5%, and the hardest kilometre is the 9th, at 8.0%.
How long does it take to climb Port de Lers from Massat?
Port de Lers from Massat takes about 1h04 at 3.0 W/kg, i.e. 14.4 km/h on average. The page gives three levels and their assumptions.
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