Real roads · Grand Tour climbs
Ride Passo del Mortirolo indoors
11.3 km at 11.4%
The brutal Mazzo side: barely any let-up from the first hairpin, sustained double-digit gradients through the woods, and no rhythm to settle into. Pure torque work.
- From → to
- Mazzo di Valtellina → Passo del Mortirolo
- Where
- Italy · Lombardy
- Length
- 11.3 km
- Climbing
- 1,292 m
- under 2%
- 2–5%
- 5–8%
- 8–11%
- 11–14%
- 14% and up
- Pavé
- Gravel
- Length
- 11.3 km
- Climbing
- 1,292 m
- Average gradient
- 11.4%
- Steepest 200 m
- 21.0%
- Highest point
- 1,850 m
Profile from OpenStreetMap and EU-DEM heights, checked against the road’s published length and climbing.
How steep it gets
| Gradient | Distance | Share |
|---|---|---|
| under 2% | 0.1 km | 0% |
| 2–5% | 0.3 km | 2% |
| 5–8% | 1.6 km | 14% |
| 8–11% | 3.3 km | 29% |
| 11–14% | 3.1 km | 27% |
| 14% and up | 3.1 km | 27% |
How long it takes
| FTP | Time | Average power |
|---|---|---|
| 2.5 W/kg (188 W) | 1 h 50 min | 172 W |
| 3 W/kg (225 W) | 1 h 29 min | 213 W |
| 3.5 W/kg (263 W) | 1 h 15 min | 254 W |
| 4 W/kg (300 W) | 1 h 4 min | 298 W |
A 75 kg rider on an 8 kg bike, riding a strong, even effort for the length of the road. In slope mode your speed comes from your own power and weight, so your time will differ; the app re-estimates it for you.
Riding it indoors
After a 10-minute warm-up, MeepMeep hands the trainer the road: the real gradient every few metres and the rolling resistance of the surface. You choose the gear and the power. Speed comes from your watts, your weight and the slope, and the ride ends at Passo del Mortirolo, however long that takes.
Pace it like a long climb on a brevet: start below the power you think you can hold, settle into a rhythm by the first third, and only lift it in the last few kilometres. Pick a gear that keeps your cadence above 70 rpm on the steep ramps; if it can’t, lower Gradient feel in Settings rather than grinding.
Make it easier or harder
- Gradient feel in Settings lowers how much of the gradient the trainer applies, without changing your speed or the climb.
- Pace assist (
E) switches to ERG and holds a pacing target, so you can ride it at exactly the power you want;↑/↓move it. - The ride records elevation, and the FIT export includes it, so the climb shows up in Strava or intervals.icu.
More Grand Tour climbs
- Passo dello StelvioItaly · South Tyrol24.8 km at 7.4%
- Passo di GaviaItaly · Lombardy18.2 km at 7.6%, 1 pavé sector
- Monte ZoncolanItaly · Friuli9.2 km at 12.4%
- Passo GiauItaly · Dolomites10.3 km at 8.6%
- Alpe d'HuezFrance · Isère14.6 km at 7.6%
- Mont VentouxFrance · Provence21.4 km at 7.4%
- Télégraphe and GalibierFrance · Savoie35.6 km at 5.3%
- Col du TourmaletFrance · Pyrenees19.1 km at 7.3%
- Alto de l’AngliruSpain · Asturias12.5 km at 10.0%
- Grand ColombierFrance · Jura17.3 km at 7.1%
Passo del Mortirolo questions
How long does it take to ride Passo del Mortirolo?
For a 75 kg rider on an 8 kg bike, MeepMeep estimates about 1 h 29 min at 3 W/kg FTP and 1 h 4 min at 4 W/kg, riding a strong, even effort. In the app the estimate uses your own FTP, weight and bike.
How steep is Passo del Mortirolo?
11.3 km from Mazzo di Valtellina to Passo del Mortirolo, climbing 1,292 m at an average of 11.4%. The steepest 200 m is about 21.0%, and the top is at 1,850 m.
Can I ride Passo del Mortirolo on a smart trainer?
Yes. MeepMeep rides it in slope mode on any smart trainer that supports Bluetooth FTMS simulation: the trainer sets the real gradient, and your power moves you up the road. It runs free in Chrome or Edge, with no account.
Ride Passo del Mortirolo on your trainer.
Free in Chrome or Edge. No account; your rides stay on your device.
Ride it in MeepMeep