Training

Long-distance cycling is as much about preparation as it is about fitness. Whether you are working toward your first 200 km brevet or building through the full Super Randonneur series, a steady and progressive approach will serve you far better than cramming in big miles at the last minute. This guide covers building base fitness, fuelling your body, pacing yourself, riding through the night, and progressing from 200 km all the way to 600 km.

Preparing for Your First 200 km

A 200 km brevet is the entry point to Audax randonneuring, and it is well within reach for any regular cyclist who puts in some structured preparation. The time limit is 13 hours 30 minutes, so the pace is moderate. The challenge is sustaining effort over a long day in the saddle rather than riding fast.

Start by building a solid base of regular riding over 8 to 12 weeks:

• Ride consistently: aim for 3 to 4 rides per week, mixing shorter weekday rides (60 to 90 km) with a longer weekend ride that you gradually extend.
• Progressive distance increases: build your longest ride by roughly 10 to 15% each week. If your longest ride today is 100 km, work up through 120, 140, and 160 km over successive weekends.
• Practice your setup: use your longer rides to test your bike fit, clothing, nutrition plan, and gear. Anything that causes discomfort at 100 km will be much worse at 200 km.
• Include some hills: most Irish Audax routes have climbing. Riding hilly routes in training builds both fitness and confidence for managing effort on varied terrain.

You do not need to ride 200 km in training before your first event. If you can comfortably ride 150 to 160 km, you have the fitness for 200 km. The event atmosphere and structured controls will carry you through the extra distance.

Nutrition and Hydration

On rides of 200 km and longer, nutrition is not optional. It is a core part of your strategy. Running low on fuel leads to fatigue, poor decision-making, and the dreaded "bonk" where your body simply runs out of glycogen. The goal is to eat and drink steadily throughout the ride, not to wait until you feel hungry or thirsty.

Eating on the Bike

• Eat early and often: start eating within the first hour and aim for 200 to 300 calories per hour from a mix of carbohydrates. Energy bars, bananas, rice cakes, jam sandwiches, and sweets all work well. Find what your stomach tolerates and stick with it.
• Real food matters: on longer rides, your stomach will eventually reject pure sugar. Mix in savoury options like sandwiches, crisps, or soup at controls. Many experienced randonneurs swear by a proper meal (pasta, chips, a fry-up) at the halfway point of a 400 or 600 km.
• Use controls wisely: Audax controls are often at shops or cafes. Use them to top up water bottles, grab a hot drink, and eat something more substantial. But do not linger too long. Time spent sitting cools your muscles and eats into your time limit.

Hydration

Drink regularly, aiming for 500 to 750 ml per hour depending on conditions. In cooler weather you may not feel thirsty, but dehydration still affects performance. Electrolyte tablets or a pinch of salt in your bottles help replace what you lose through sweat.

Pacing Strategies

Audax is not racing. The time limits are generous (13 hours 30 minutes for 200 km, 20 hours for 300 km, 27 hours for 400 km, 40 hours for 600 km) but poor pacing can still catch you out. The key is to ride at a sustainable effort from the start and resist the temptation to go hard early.

• Start slower than you think: the first 50 km should feel easy. If you are breathing hard in the first hour, you are going too fast. You will pay for early efforts later in the ride.
• Ride to feel, not to speed: rather than targeting a specific average speed, ride at a comfortable conversational pace. Your speed will naturally drop as the ride goes on, and that is fine.
• Manage your stops: time at controls adds up quickly. Aim for 10 to 15 minutes at each stop. Have a plan for what you need to do (eat, refill bottles, use the toilet) and get moving again.
• Break the ride into segments: mentally divide the ride into control-to-control sections rather than thinking about the total distance. Riding 60 km to the next control is much more manageable than thinking about the 400 km total.
• Expect a low point: on any ride over 300 km, there will be a period where you feel terrible. This is normal. Eat something, slow down, and keep pedalling. It almost always passes.

Night Riding Preparation

Events of 300 km and longer will almost certainly involve riding in the dark. A 300 km ride with a 20-hour time limit means you will be out past midnight if you start in the morning, and a 600 km ride involves two nights on the road. Night riding is a skill that takes practice, but it can also be one of the most rewarding parts of randonneuring: quiet roads, cool air, and a real sense of adventure.

• Get good lights: a strong front light (at least 400 lumens, ideally more) is essential for seeing the road ahead. A reliable rear light keeps you visible to traffic. Carry spare batteries or a backup light. See the Gear page for details.
• Practice before the event: do at least a couple of night rides in training so you are comfortable with your lights, navigation, and the feeling of riding in the dark. A familiar route is a good starting point.
• Dress for the cold: temperatures drop significantly after dark, even in summer. Pack a warm layer, a windproof gilet, and full-finger gloves. Being cold saps energy and morale faster than almost anything else.
• Manage sleepiness: the low point usually hits between 2 am and 5 am. Caffeine helps, but use it strategically. Save your coffee for when you really need it rather than drinking it all day. If you are dangerously drowsy, a 15 to 20 minute power nap at a control can work wonders.

Building Through the SR Series

The Super Randonneur award is earned by completing a 200, 300, 400, and 600 km brevet within a single Audax season (November to October). It is the classic progression in randonneuring and a natural goal for anyone who has completed their first 200 km. Each step up brings new challenges, but the progression is logical and achievable with the right approach.

200 km to 300 km

The jump from 200 to 300 km adds roughly 6 to 7 hours of riding time. The main new challenge is riding into the evening and potentially into darkness. Focus on nutrition and pacing, and make sure your lights are sorted. If you finished your 200 km feeling comfortable, you are ready for 300 km.

300 km to 400 km

At 400 km with a 27-hour time limit, you are looking at a full overnight ride. Sleep deprivation becomes a factor. Practice night riding beforehand and have a plan for the small hours. The physical demands are significant but manageable if you have paced well and eaten consistently.

400 km to 600 km

The 600 km is the big one, with a 40-hour time limit and two nights on the road. This is where all your preparation comes together: fitness, nutrition, pacing, night riding, and mental resilience. Most riders take a short sleep break (1 to 3 hours) during the second night. Plan where you will sleep and set an alarm.

Do not rush the progression. Many riders take a full season or two to work from 200 to 600 km, and there is no shame in repeating a distance before stepping up. Each ride teaches you something about yourself and your approach to long-distance cycling.

Mental Preparation

The physical training gets you to the start line. The mental side gets you to the finish. Long-distance cycling is as much a psychological challenge as a physical one, especially on rides of 400 km and above where fatigue, sleep deprivation, and discomfort are guaranteed.

• Define your goal: know what success looks like before you start. For some it is finishing within a target time. For many it is simply finishing. Having a clear goal helps you make decisions when things get hard.
• Accept the low points: every long ride has bad patches. Knowing they are coming and that they pass makes them easier to handle. When you feel terrible at 3 am, remind yourself that you will feel better after food and sunrise.
• Focus on the next control: do not think about the total remaining distance. Think about the next 40 or 60 km to the next control. That is always manageable.
• Commit to finishing: once you start, the default should be to keep going. A DNF is always an option if something is genuinely wrong, but do not quit just because you feel bad. Eat, rest for 10 minutes, and reassess.