Bike training
Build cycling power, endurance, and bike handling skills for triathlon.
By Lotte
The bike is the longest discipline in triathlon. Build endurance with long steady rides, improve power with structured intervals, maintain 85-95 RPM cadence, and practice eating/drinking on the bike.
Key takeaways
- 1The bike is 50%+ of total race time — invest in cycling fitness
- 2Optimal cadence is 85-95 RPM for most triathletes
- 3Indoor training is extremely effective and time-efficient
- 4Practice nutrition on the bike — it's the best time to fuel during a race
In this article
Building cycling endurance
The bike leg is the longest portion of any triathlon. Building endurance on the bike requires long, steady rides at conversational pace. Start with 45-minute rides and gradually build to the duration your target race demands.
Consistency matters more than any single epic ride.
Cadence and efficiency
Cadence is how fast you pedal, measured in revolutions per minute (RPM). Most triathletes perform best at 85-95 RPM. A higher cadence is generally easier on your legs, saving them for the run.
Practice maintaining consistent cadence using your bike computer or a cadence sensor.
Indoor training
Indoor trainers and smart trainers allow structured training regardless of weather. Platforms like Zwift, TrainerRoad, and Rouvy add structure and motivation.
Indoor sessions are ideal for interval work since you can precisely control power output without traffic or terrain interruptions.
A 60-minute indoor session provides more training stimulus than a 90-minute outdoor ride due to continuous pedaling and controlled intensity.
Bike handling skills
Practice cornering, braking, riding in a group, and handling your bike in wind. Good bike handling keeps you safe and efficient.
Spend time riding in various conditions — wet roads, windy days, and hills — to build confidence and competence.
Nutrition on the bike
The bike leg is the best time to take on calories and fluids. Aim for 60-90g of carbohydrates per hour for races over 2 hours, and drink regularly — about 500-750ml per hour depending on conditions.
Practice your nutrition strategy during training rides. Never try anything new on race day.
Recommended gear
Affiliate disclosure: Brick to Brick may earn a commission from qualifying purchases, at no extra cost to you. Unless a named method says otherwise, these are research-based recommendations rather than first-hand product tests.
Frequently asked questions
How much cycling do I need to do per week?
For sprint distance, 2-3 rides per week totaling 2-4 hours. For Olympic, 3 rides at 3-5 hours total. For half/full distance, 3-4 rides at 5-10+ hours total. Quality matters as much as quantity.
Is indoor cycling as good as outdoor?
For fitness, yes — often better. Indoor training eliminates coasting, stops, and weather variables. You get more training per minute. However, outdoor riding builds bike handling skills, so include both in your plan.
Do I need clipless pedals?
Not for your first race. Flat pedals work fine. Clipless pedals improve pedaling efficiency by 5-10% and are worth adding after a few races. Practice unclipping in a safe area before riding in traffic.