Whether you're training for your first sportive, commuting through a hilly city or dreaming of conquering iconic mountain passes, understanding cycling climb categories can help you become a stronger, more confident cyclist.

If you've ever watched the Tour de France and wondered what separates a Category 4 climb from a Hors Catégorie ascent, or questioned why some UK cycling climbs feel tougher than famous Alpine roads, you're not alone.

The truth is that cycling climb categories aren't based on steepness alone. Length, elevation gain, average gradient and even where a climb appears during a race can all influence its classification.

You don't need professional-level fitness to get better at climbing hills. With the right technique, suitable gearing and a bike that's built for your riding style, even the most intimidating climbs become far more achievable.

If hills form part of your journey to work, the right bike can make a big difference. Through Cyclescheme, you could save on a new bike, e-bike and eligible cycling accessories through your employer, helping you find a setup that's better suited to a hilly commute.

What are cycling climb categories?

If you've watched professional cycling, you've almost certainly heard commentators referring to Category 4, Category 2 or Hors Catégorie (HC) climbs. These cycling climb categories are used to describe how difficult a climb is, helping riders, spectators and race organisers understand the challenge ahead.

Most professional races, including the Tour de France, classify climbs into five categories:

• Category 4 – the easiest classified climbs
• Category 3
• Category 2
• Category 1
• Hors Catégorie (HC) – literally meaning ‘beyond categorisation’, reserved for the toughest mountain ascents

These classifications also determine how many points riders earn in the King of the Mountains competition. The harder the climb, the more points are available for the first rider over the summit. That's why the rider leading this competition proudly wears the famous polka-dot jersey throughout the Tour de France.

While there are general characteristics associated with each category, there isn't a single universal formula that every race follows.

A Category 4 climb might only last a few minutes, while a Hors Catégorie ascent could require well over an hour of continuous climbing.

But there's more to it than simply looking at how steep a road is.

How are cycling climbs categorised?

Cycling climbs are categorised using factors including length, average gradient, elevation gain and overall difficulty. In professional races, organisers may also consider where a climb appears in the stage and its likely effect on the racing.

Professional race organisers also consider:

• Total length
• Average gradient
• Total elevation gained
• Altitude
• Position within the race
• Expected impact on the stage

This explains why two climbs with similar gradients can receive completely different classifications.

For example, a climb averaging 7% over 18 kilometres will usually be considered significantly harder than a one-kilometre climb averaging 20%. Although the shorter hill is steeper, the longer climb demands sustained effort for much longer.

Professional races also introduce an element of judgement.

If a climb comes immediately before the finish line or is likely to determine the outcome of the stage, organisers may award it a higher category than if exactly the same climb appeared early in the day's racing.

Tour de France climb categories explained

The Tour de France climb categories have become one of the defining features of professional cycling.

Each mountain stage includes a profile showing every classified climb, allowing fans to understand where attacks are most likely to happen.

Generally speaking:

• Category 4 climbs are shorter, less demanding ascents.
• Category 3 and Category 2 climbs begin to test endurance.
• Category 1 climbs are long, sustained efforts that often influence the overall race.
• Hors Catégorie climbs are reserved for the biggest and most demanding mountain passes.

The Tour's organisers ultimately decide which category each climb belongs to, balancing objective measures with how they expect the climb to influence the racing itself.

Strava climb categories explained

Unlike the Tour de France, Strava climb categories are entirely objective.

Rather than relying on race organisers, Strava uses a mathematical formula based on a climb's length and average gradient. Once a climb reaches a certain score, it automatically receives a category.

Current Strava climb categories are:

Because the process is automated, the same climb will always receive the same classification, regardless of when or how it's ridden.

According to the latest Strava guidance,  climb categorisation is based on a simple formula combining distance and average gradient. Unlike professional racing, there is no subjective adjustment based on where a climb appears during an event, meaning every rider sees the same classification for the same segment. 

Are UK cycling climbs harder than Tour de France climbs?

It's a question many cyclists ask after seeing road signs warning of gradients of 25% or even 33%. Surely those roads must be harder than the legendary climbs of the Alps? The answer is both yes and no.

Many UK cycling climbs are actually steeper than famous Tour de France climbs. Take Hardknott Pass in Cumbria or Rosedale Chimney Bank in North Yorkshire. Both are famously signposted as reaching gradients of 33%.

However, those road signs refer to the maximum gradient, not the average. For example, although Rosedale Chimney Bank briefly reaches 33%, its average gradient over the full climb is closer to 13%. That's still remarkably steep. Steeper, in fact, than many famous Hors Catégorie climbs in France.

So why aren't British climbs given the same status? The answer is length.

Continental climbs often continue for 15 to 20 kilometres or more. British climbs are usually much shorter.

Instead of requiring sustained endurance over an hour, they're often short, explosive efforts that demand bursts of power. That's why climbs like Buttertubs Pass were classified as Category 1 during the Tour de Yorkshire despite being regarded as some of Britain's toughest roads.

Cycling gradients explained

Understanding gradients helps explain why some hills feel so difficult.

A gradient is simply how steep a road is.

For example:

A 5% gradient means the road gains around five metres in height for every 100 metres of horizontal distance.

At 10%, that's around ten metres of elevation gain for every 100 metres.

At 20%, the road gains roughly one metre in height for every five metres horizontally, which feels dramatically steeper on the bike.

The difference between 8% and 15% may not sound huge on paper, but on the bike it feels enormous.

How steep is a Category 1 climb?

One of the most common questions cyclists ask is ‘How steep is a Category 1 climb?’ There's no fixed gradient for a Category 1 cycling climb. A Category 1 ascent might average around 6% over 15 kilometres or 9% over eight kilometres because professional race organisers consider the overall difficulty of the climb rather than gradient alone.

That's why a relatively gentle Alpine road can earn a tougher classification than a brutally steep British hill.

The BBC's 2025 Tour de France guide explains that the famous King of the Mountains competition awards more points on harder climbs, with organisers determining whether an ascent is Category 4, Category 3, Category 2, Category 1 or Hors Catégorie based on its overall difficulty and importance within the race. 

Got hills on your commute?

Understanding Tour de France climb categories might make you look at hills differently, but you don't need an Alpine ascent on your journey to work to appreciate the difference the right bike can make.

If your commute includes steep cycling climbs, Cyclescheme could help you save on a new road bike, gravel bike, hybrid or e-bike through your employer. Choosing gearing and a bike that suit your route can help make cycling to work more comfortable and manageable.

See how Cyclescheme could help you find the right bike for your commute.

How to climb hills on a bike: 8 expert cycling uphill tips

Now that you understand cycling climb categories, it's time to put that knowledge into practice.

Whether you're tackling one of Britain's steep cycling climbs or preparing for a mountain sportive abroad, learning how to climb hills on a bike is about much more than simply pedalling harder.

Professional cyclists make climbing look effortless, but they're relying on pacing, technique and experience just as much as fitness.

A few changes to your gearing, pacing and technique can make climbing feel noticeably easier.

1. Choose the best bike gears for climbing

One of the biggest mistakes many cyclists make is waiting until they're already struggling before changing gear. Instead, shift into an easier gear before your cadence starts to slow.

Modern drivetrains are designed to change gear most effectively while you're pedalling smoothly. If you wait until you're pushing as hard as possible, gear changes become slower, noisier and place more strain on both your drivetrain and your legs.

Using the best bike gears for climbing allows you to maintain a comfortable cadence rather than grinding to a halt halfway up the hill.

Many recreational cyclists also ride gears that are much too high for the roads they actually ride.

If your local routes include particularly steep cycling climbs, there's absolutely nothing wrong with fitting lower gearing. It doesn't mean you're less fit. It simply means you're riding more efficiently.

Remember, the aim isn't to impress other cyclists. It's to enjoy riding more.

2. Pace yourself from the very beginning

One of the quickest ways to make a climb feel harder is to attack it too enthusiastically. On short hills lasting just twenty or thirty seconds, that approach can work. On anything longer, it usually backfires.

Instead, settle into a sustainable rhythm from the very bottom of the climb. You should still feel like you're working hard, but not so hard that you're gasping for breath after the first few hundred metres.

Think of climbing as a marathon rather than a sprint.

Professional riders constantly manage their effort, knowing they'll lose far more time if they exhaust themselves too early.

3. Stay seated wherever possible

Standing on the pedals certainly has its place. It allows you to generate more power over short sections and can help you crest particularly steep ramps. However, it also requires significantly more energy.

For most climbs, remaining seated is the more efficient option.

Sitting keeps more weight over the rear wheel, improving traction on damp roads, loose gravel or uneven surfaces. It also encourages a smoother pedalling action, helping you conserve energy throughout the climb.

Save standing for those moments when you genuinely need an extra burst of power.

4. Keep your cadence smooth

A common mistake when climbing hills by bike is trying to push an overly heavy gear. While this may feel powerful initially, it often causes your cadence to slow dramatically, leading to fatigue much sooner. Instead, aim to maintain a smooth, consistent rhythm.

Most experienced cyclists climb comfortably between 70 and 90 revolutions per minute, although this varies depending on the gradient and rider preference.

If your legs begin to labour, don't be afraid to shift into an easier gear. Spinning steadily is usually far more efficient than grinding slowly.

5. Look further up the road

It's surprisingly common for cyclists to spend an entire climb staring at the few metres of tarmac directly in front of their front wheel. Unfortunately, this tends to make the climb feel longer than it really is. Instead, look ahead. Focus on the next bend, the next road sign or the next landmark.

Breaking the climb into smaller sections makes it feel much more manageable psychologically, while also helping you anticipate changes in gradient before you reach them.

6. Fuel properly before big climbs

Your muscles rely on stored carbohydrate to produce sustained power. If you're planning a hilly ride, eating beforehand and staying hydrated throughout your ride can make a significant difference to how comfortably you climb.

Rather than waiting until you feel hungry, try eating small amounts regularly on longer rides. Likewise, don't forget to drink. Even mild dehydration can noticeably reduce cycling performance, particularly during sustained climbs.

7. Include cycling hill training in your rides

Like every cycling skill, climbing improves with practice. The more hills you ride, the stronger and more efficient you'll become. Fortunately, cycling hill training doesn't require mountain roads.

Repeating the same local climb several times is one of the simplest and most effective ways to improve your climbing ability.

You'll soon learn:

• when to change gear
• how to pace yourself
• which cadence feels most comfortable
• how much effort you can realistically sustain

Over time, hills that once seemed impossible begin to feel surprisingly manageable.

8. Practise good climbing technique, not just fitness

Many cyclists assume they simply need stronger legs. In reality, technique often makes the biggest difference.

Small improvements - choosing the right gear, sitting down more often, pacing yourself correctly and maintaining a smooth cadence - can transform your climbing experience without requiring months of additional training.

That's encouraging news because technique improves much faster than fitness.

British Cycling's latest coaching guidance encourages recreational cyclists to focus on pacing and cadence rather than attacking climbs too aggressively. Riding within a sustainable effort and selecting easier gears helps riders maintain efficiency on longer climbs while reducing fatigue later in the ride.

What's the best bike for climbing hills?

There's no single ‘perfect’ climbing bike. The best choice depends on your route, the gradients you regularly face and how you use your bike. If you're choosing a bike for a hilly commute, gearing, weight, riding position and electric assistance can all make climbing hills by bike more manageable.

Road bikes

Road bikes remain the first choice for many cyclists tackling long road climbs. They're lightweight, responsive and designed to climb efficiently. However, many performance road bikes are supplied with gearing aimed at experienced riders.

If your local roads feature particularly steep cycling climbs, don't hesitate to consider lower gearing. It can make an enormous difference.

Gravel bikes

Gravel bikes have become one of the most versatile options available. 

Combining comfortable geometry with lower gearing than many road bikes, they're excellent for riders who enjoy both road riding and mixed terrain. Their climbing ability is particularly impressive on rougher roads and longer adventures.

Hybrid bikes

Hybrids may not receive as much attention as carbon road bikes, but they're an excellent choice for commuting.

Their upright riding position can inspire confidence, while lower gearing can make climbing considerably easier for many cyclists.

If your daily journey to work includes hills, a hybrid can give you a practical combination of comfort, control and climbing-friendly gearing.

Mountain bikes

When gradients become truly extreme, mountain bikes come into their own. Their exceptionally low gears make very steep climbs much more manageable, particularly off-road.

While they may be slower on tarmac, few bikes climb technical terrain as confidently.

Are e-bikes good for climbing hills?

If you've ever reached the bottom of a steep hill and wished it simply wasn't there, an e-bike could completely transform your riding experience.

One of the biggest misconceptions is that e-bikes do all the work. In reality, they simply amplify the effort you're already putting into the pedals. That means you still enjoy all the health and wellbeing benefits of cycling while receiving extra assistance when gradients become challenging.

Mid-drive motors are particularly effective for climbing because they work alongside your bike's gears. Just like your legs, the motor becomes more efficient when you select an easier gear.

If you're regularly tackling steep routes, choosing the best e-bike for hills often comes down to torque. Higher-torque motors deliver stronger assistance on demanding climbs, helping you maintain a comfortable cadence rather than struggling in a heavy gear.

Cycling UK's work with e-bike riders shows how electric assistance can remove barriers such as steep hills, longer distances and concerns about fitness. That can make an e-bike particularly useful for people whose journey to work feels too demanding on a conventional bike.

Find the right bike for a hilly commute

If your journey to work includes regular climbs, lower gears, a lighter bike or the best e-bike for hills could make your commute feel much more manageable.

Through Cyclescheme, you could save on a new road bike, gravel bike, hybrid or e-bike, along with eligible cycling accessories, through your employer.

The right setup can help you tackle hills more comfortably and make cycling to work a more realistic option, particularly if distance or gradient has previously put you off.

Visit Cyclescheme to explore your options for a bike that's suited to your commute.

The best UK cycling climbs to add to your bucket list

One of the greatest things about cycling in Britain is that you never have to travel particularly far to find a rewarding climb.

While we may not have the towering mountain passes of the Alps or Pyrenees, the UK is home to some of Europe's most memorable roads. From short, brutally steep ascents to long, flowing climbs through spectacular scenery, there's something to suit every rider.

Whether you're new to climbing hills by bike or looking to tick off legendary routes, these are some of the best UK cycling climbs to experience.

Hardknott Pass, Cumbria

Often described as Britain's toughest road climb, Hardknott Pass regularly features on cyclists' bucket lists. With gradients reaching 33%, tight hairpin bends and breathtaking views across the Lake District National Park, it's as beautiful as it is demanding.

Don't be fooled by its relatively short length however. This climb has humbled countless experienced riders.

Rosedale Chimney Bank, North Yorkshire

If you've ever searched for the steepest roads in Britain, you've probably come across Rosedale Chimney Bank. Like Hardknott, it's signposted at 33%, although that's the maximum gradient rather than the average.

Its combination of steep ramps and exposed moorland makes it one of the country's most iconic steep cycling climbs.

Bealach na Bà, Scottish Highlands

One of the few roads in the UK built using Alpine-style hairpin bends, Bealach na Bà offers an unforgettable climbing experience. The road climbs from sea level to over 600 metres, rewarding cyclists with spectacular views across the Applecross Peninsula. It's widely regarded as one of Britain's finest road climbs.

Buttertubs Pass, Yorkshire Dales

Made famous by both the Tour de France Grand Départ and the Tour de Yorkshire, Buttertubs Pass combines dramatic scenery with a sustained climb that's challenging without being intimidating.

It's an excellent introduction to longer climbs and remains one of Yorkshire's most popular cycling routes.

Winnats Pass, Peak District

Short but incredibly steep, Winnats Pass cuts dramatically through a limestone valley in the Peak District. Its striking scenery makes it one of the UK's most photographed cycling climbs, and one of the most rewarding to conquer.

Cornwall and Devon

Don't assume the South West is all gentle rolling countryside. Cornwall and Devon are packed with relentless short climbs that can quickly sap your energy. Unlike Alpine roads, there's often very little recovery before the next hill appears.

For riders looking to improve their climbing strength, they're an excellent training ground.

Simon Warren's 100 Greatest Cycling Climbs was fully revised and updated for 2026. It covers 100 British climbs, with maps, timings and difficulty ratings based on factors including gradient, length and road surface.

Planning your next cycling climbs

One of the best ways to improve your climbing is simply to ride more hills. 

You don't have to head straight for Hardknott Pass or Bealach na Bà, either. Start by exploring your local area. Apps like Strava and Komoot make it easy to discover nearby cycling climbs, compare gradients and plan routes that match your fitness level. As your confidence grows, you can gradually introduce longer or steeper climbs into your rides.

Many cyclists even create their own climbing bucket list, ticking off famous roads around the country one by one. Not only does this provide fantastic motivation, but it also gives you an opportunity to explore some of the UK's most beautiful landscapes by bike.

The right bike can make a hilly commute easier

Fitness and technique both matter when you're cycling uphill, but your bike can make a noticeable difference too.

Lower gearing can help you maintain a comfortable cadence. A lighter bike may feel more responsive on longer ascents. An e-bike can provide extra assistance when your journey to work includes challenging gradients.

If hills are one of the things stopping you from cycling to work, choosing a bike that's better suited to your route could help remove that barrier.

Cyclescheme makes it easier to get a road bike, gravel bike, hybrid or e-bike for your commute while saving through your employer. You can choose from more than 2,600 participating retailers across the UK and spread the cost through salary sacrifice.

So whether you're looking for the best bike gears for climbing or an e-bike that can help with a hilly journey to work, Cyclescheme gives you more choice to find a bike that fits your commute.