How to Ride Your First 20 Miles
Ready for your first long bike ride? Here's how to train for 20 miles, pace yourself, fuel right, and finish strong.
Twenty miles sounds daunting until you realize most healthy adults who can ride 5 miles comfortably can cover 20 within a few weeks of consistent practice. The key is building up gradually, fueling your body, and not going out too hard in the first half. This guide walks you through exactly how to get there.
Is 20 Miles Really "Long" for a Beginner?
It depends entirely on your starting point. If you've been riding 8 to 10 miles on weekends, 20 miles is a reasonable next step. If your current longest ride is 3 miles, you'll want a few extra weeks in the bank before attempting it.
A useful way to think about distance: at a casual pace of 10 to 12 mph, 20 miles takes roughly 1.5 to 2 hours of riding time. That's genuinely long for a first effort, not because of the mileage itself, but because of saddle time, cumulative fatigue in your legs, and the nutritional demands. Respect it and you'll finish well. Rush it and you'll limp home.
Building Up: A Simple 4-Week Training Plan
The biggest mistake beginners make with beginner long distance cycling is attempting the target distance with no progressive buildup. One 20-mile attempt after weeks of only riding around the block is a recipe for soreness and discouragement.
Here's a simple four-week ramp that works for most people:
| Week | Longest Ride | Total Weekly Miles |
|---|---|---|
| 1 | 8 miles | 16–20 miles |
| 2 | 12 miles | 22–28 miles |
| 3 | 15 miles | 26–32 miles |
| 4 | 20 miles (goal ride) | 20–25 miles |
Ride three or four times a week if you can. Two of those sessions can be short recovery spins (4 to 6 miles at an easy pace). The long ride each week is where your endurance grows.
For more on building your base in a way that sticks, see our guide on building cycling endurance from scratch.
Rest Days Matter
Your legs adapt while you rest, not while you ride. One or two full rest days per week, especially in the first two weeks, keeps fatigue from accumulating and reduces the risk of overuse injuries like knee soreness. If your knees or hips ache after a ride, don't push through. Take an extra day off.
How Far Should You Ride the Week Before?
Keep week three's long ride at about 15 miles, then dial back total volume in week four before the big attempt. A short 5-mile spin two days before the 20-miler keeps the legs moving without adding fatigue.
Pacing: The Part Most People Get Wrong
Go out at the pace you think is easy, then slow down a bit more. This is the single most useful piece of advice for a first long bike ride.
The first 5 miles will feel almost effortless. That's exactly when most beginners overpace. They feel great, push harder, and hit a wall somewhere around mile 14. By that point you're far from home, your legs are burning, and every slight incline feels like a climb.
A sustainable pace for a 20-mile beginner ride is roughly 55 to 65 percent of your maximum effort. You should be able to hold a conversation, breathing a little harder than normal but not gasping. If you have a fitness tracker with heart rate, aim for 120 to 140 bpm depending on your age and fitness.
Breaking the Ride into Segments
Mentally dividing the route helps enormously:
- Miles 0–5: Warm-up. Intentionally slow. Spin your legs out.
- Miles 5–15: Steady state. Find your rhythm and hold it.
- Miles 15–20: You'll feel tired here. Focus on smooth pedaling and small landmarks ahead.
Riding into a headwind on the way out and with the wind on the way back is a smart strategy if your route allows it. You'll be grateful for the tailwind when fatigue sets in.
Fueling and Hydrating for 20 Miles
This is where training for a long bike ride gets specific. Rides under an hour don't usually require food mid-ride. But 20 miles at a beginner pace takes 1.5 to 2 hours, which puts you squarely in the zone where your body starts running low on glycogen if you didn't eat before the ride.
Before the Ride
Eat a normal, carbohydrate-containing meal 2 to 3 hours before you set off. Something like oatmeal with banana, toast with peanut butter, or rice with eggs. Avoid anything heavy or high in fat that might sit in your stomach.
If you're riding in the morning and don't want a full meal, a small snack 30 to 45 minutes before works: a banana, a piece of toast, a handful of pretzels.
During the Ride
For rides over 75 minutes, eating something on the bike prevents the bonk, that sudden, leg-draining fatigue that hits when your blood sugar drops. Simple, portable options include:
- Half a banana or a small sandwich (kept in a jersey pocket or small bag)
- An energy bar cut into pieces (easier to eat while moving)
- A handful of gummy chews or dates
Eat something small around the 45-minute or 1-hour mark, before you feel hungry. By the time you're actually hungry on a ride, you're already behind.
Hydration
Bring at least one full water bottle (about 20 oz) for a 20-mile ride, two if it's warm out or you tend to sweat heavily. Sip regularly rather than waiting until you're thirsty. On hot days, an electrolyte drink or dissolving tablet replaces the sodium you lose through sweat, which helps prevent cramping in the second half of the ride.
For a full breakdown of what to eat and drink before and during rides, our article on what to eat and drink on a bike ride goes into much more detail.
Route Planning and Safety
A good route removes obstacles and lets you focus on riding. For your first 20-miler, favor routes you already know at least partially. Surprise hills, confusing intersections, and unexpected gravel patches add mental load you don't need on a debut long effort.
What to Look For in a Route
- Minimal traffic or protected bike lanes for as much of the distance as possible
- Flat to gently rolling terrain (save the big climbs for after you've got a few long rides under your belt)
- A turnaround point at the 10-mile mark so you're always equidistant from home, or a loop you've ridden sections of before
- Places to stop if needed: a park bench, a cafe, a convenience store around mile 10 for a water refill
Safety Basics
A properly fitted helmet is non-negotiable. Check that it sits level on your head, covers your forehead, and doesn't rock forward or backward. Wear bright or high-visibility clothing if you'll be near traffic. Follow local traffic laws, signal your turns, and don't ride with headphones covering both ears.
Carry your phone, some cash, and a basic flat-fixing kit: a spare tube, a small hand pump or CO2 inflator, and two tire levers. Knowing how to change a tube before you go, or at least having watched a video walkthrough, means a flat doesn't end your ride.
What to Expect on Ride Day
Even with good preparation, a first 20-miler has its uncomfortable moments. Knowing what's normal helps you push through rather than second-guess yourself.
Around miles 10 to 14, most beginners experience a dip in energy or motivation. This is normal. Eat your snack if you haven't, take a short 5-minute stop if you need it, and remind yourself that the second half always feels harder than the first. That's not a sign something is wrong; it's just how sustained aerobic effort works.
Your hands may get numb from gripping the bars. Shift your hand position periodically, and consider padded gloves. Your sit bones might ache even on a well-fitted saddle, because seat comfort takes a few weeks of regular riding to develop. Padded cycling shorts help considerably.
After you finish, do a short 5-minute slow spin before stopping abruptly, eat a snack with both carbohydrate and protein within 30 to 45 minutes, and expect your legs to feel a little heavy for the next day or two. That's normal recovery.
How Often Should You Attempt Long Rides?
Once you've done your first 20-miler, don't try to repeat it every weekend right away. The recommendation for most beginners is one long ride per week, with shorter rides filling the other days. Our guide on how often you should ride as a beginner breaks down a sustainable weekly structure that builds fitness without burning you out.
FAQ
How long does 20 miles take on a bike?
At a comfortable beginner pace of 10 to 12 mph, expect 1 hour 40 minutes to 2 hours of actual riding time. Add in any stops and it's likely closer to 2 to 2.5 hours total. Your pace will improve naturally as you ride more.
Do I need a special bike to ride 20 miles?
No. A road bike, hybrid, or even a mountain bike in good mechanical condition will get you there. What matters more than bike type is that the bike fits you reasonably well, the tires are inflated to the correct pressure (check the sidewall for the range), and the brakes work properly. Have a bike shop check anything you're unsure about before a long ride.
What should I do if I can't finish the 20 miles?
Stop, rest, eat something, and either continue slowly or call for a pickup. There's no shame in cutting a first long ride short, especially if the weather turned, you didn't sleep well, or your legs gave out earlier than expected. A shorter successful ride beats a miserable slog. Note where things went wrong (pacing, fueling, heat) and adjust for next time.
Should I train on a stationary bike instead?
Stationary bikes can supplement outdoor riding, especially for easy recovery days or when the weather is bad, but they don't fully replicate outdoor cycling. Balancing, handling wind resistance, navigating terrain, and learning to pace by feel are all things you only develop on the road. Try to do at least your long rides outdoors.
How do I know if I'm ready to try 20 miles?
A good benchmark: if you've ridden 12 to 15 miles in a single outing and felt reasonably okay afterward (tired but not wrecked), you're ready to attempt 20. If 12 miles leaves you completely spent for two days, spend another week or two building up before your goal ride.