How do you ride your first mountain pass on a bike?

A mountain pass is the cyclist's equivalent of a great opera: long, dramatic, occasionally painful, and absolutely worth it for the final act. The road switches back and forth up the valley, cows watch you without interest, and then there is the sign at the top, a café, and a view that makes you forget the last hour entirely.

Choosing your first pass

Not all passes are created equal. For a first one, look for:

• A steady gradient. A long climb that stays fairly constant is far kinder than a shorter one with savage ramps. Climb profiles on route-planning apps and cycling sites show where the steep bits are.
• A road with a reputation for being rideable. Famous passes in the Alps and Dolomites are popular precisely because they are well surfaced, well signed and have somewhere to eat at the top.
• Quiet traffic times. Early mornings make a big difference, and it is worth asking locally about any car-free days.
• A bail-out. Know where you could turn round, and whether there is a bus or a lift back down in an emergency.

Watching the Giro d'Italia on television is a fine way to find famous climbs. It is also a fine way to scare yourself; the professionals are not riding the same day you are.

Gearing: lower than your pride wants

The single most useful thing you can do is fit easy gears. A compact chainset and a large cassette at the back let you spin up a long climb instead of grinding. If you are renting a bike for a cycling holiday, ask for the easiest gearing they have; nobody at the top will ask what ratio you used. Our page on using your gears explains shifting before the slope bites.

Pacing the climb

The classic first-pass mistake is to ride the bottom as if it were the top. Excitement, fresh legs and a gentle opening gradient all conspire to make you go too fast, and the bill arrives halfway up.

• Ride the first third at an effort that feels almost too easy. You should be able to talk in full sentences.
• Settle into a rhythm. Count switchbacks, not kilometres.
• Sit down most of the time, standing occasionally to stretch and use different muscles.
• Stop if you want to. A photo stop at a hairpin is a perfectly respectable way to catch your breath.
• Eat and drink little and often from early on, not just when you feel empty.

Weather: start early and keep watching

Mountain weather changes fast. The UK Met Office notes that conditions in the mountains can vary dramatically from hour to hour and from one hill to the next, and the Swiss canton of Ticino's mountain safety guide advises making the most of the morning in spring and summer, because showers and thunderstorms are more frequent in the afternoon and evening. The same guide notes that temperature drops by around 6°C for every 1,000 metres of height gained, and that storms can make it fall sharply and suddenly.

In practice:

• Check the local mountain forecast the evening before and again in the morning.
• Aim to be at the top before lunch.
• If clouds build, thunder starts or the wind picks up, turn back. The pass will still be there tomorrow. Follow any road closures and local instructions.

The descent

Coming down is where most of the thinking happens. You will be cold, so stop at the top and put on a windproof jacket and maybe gloves, even in July. Then:

• Brake before the bend, not in it, using both brakes smoothly.
• Look through the corner to where you want to go.
• Stay on your side of the road, especially on blind hairpins where cars and motorbikes come up wide.
• Go at a pace where you can stop in the distance you can see.

What to carry

Two full bottles, food you like eating, a windproof or rain jacket, arm warmers or a light layer, a spare tube and tools, phone, cash or card for the café at the top, and some idea of where water is available on the way up.