Endurance comes from a lot of easy riding, one progressively longer ride each week, a small amount of hard work, enough fuel on the bike, and enough sleep. Most of the specific numbers people quote (percent splits, weekly increases, grams of carbohydrate) are rules of thumb, so treat them as starting points and adjust to how you respond.
Build the base with mostly easy riding
Studies of nationally and internationally competitive endurance athletes, who train 10 to 13 times per week, find a similar pattern: roughly 80% of sessions at low intensity and about 20% dominated by high-intensity work. Note that this counts sessions, not minutes, and describes elite athletes; it is a description of what they do rather than a guaranteed recipe for recreational riders. The reviewers also found no convincing evidence that adding more high-intensity intervals to the training of already well-trained athletes produces long-term gains.
In practice, “easy” means an effort at which you could talk in full sentences. If you ride with a heart rate monitor or power meter, that is usually the lowest two zones of a five-zone system. Zone names differ between systems, so check how your device defines them.
The weekly long ride
Make one ride each week noticeably longer than the rest and extend it gradually. You may have heard the “10% rule” (never raise weekly distance by more than 10%). It is a convention rather than a proven threshold. A trial protocol for novice runners describes its graded program as being “based on ‘the ten percent training rule'”, and a study of 874 novice runners found no statistically significant difference in injury rates between those who raised weekly distance by under 10%, 10 to 30%, or over 30%. It did suggest that jumps above 30% over two weeks carried more distance-related injuries. Both studies concern running, not cycling, and cycling is lower impact, but the sensible reading carries over: build in small steps, and cut back if joints or tendons complain. Persistent pain in a knee, hip or Achilles tendon is a reason to rest and see a clinician, not to push through.
For an event, work backward from the date. There is no solid universal figure for how many weeks a given distance needs or how long your longest training ride should be, because it depends on your starting fitness and how many hours you can ride. A practical test: your longest ride should leave you able to ride again within a day or two, and the event itself should feel like a modest step beyond what you have already done. If you are new to riding, start with the first 30 days of cycling and see what improves and how fast.
Adding intensity without overdoing it
- Easy riding (lowest zones): builds aerobic base and aids recovery.
- Tempo (middle zone): comfortably hard. Useful in moderation, but easy to overuse because it feels productive.
- Threshold and VO2max intervals (top zones): short, hard repeats with full recovery. One or two sessions per week is plenty for most riders.
Keep intervals genuinely hard and easy days genuinely easy; the muddy middle is where many recreational riders spend too much time. Many cyclists supplement their riding with functional strength training to build the core and upper-body capacity that cycling alone does not develop β CF Workouts has CrossFit benchmark workouts with full scaling options for riders new to functional fitness.
Fueling long rides
Needs scale with duration. A sports-nutrition review reports that for sustained high-intensity efforts of about an hour, small amounts of carbohydrate (even a mouth rinse) can help, while 30-60 g per hour is an appropriate target for longer sports, and events over 2.5 hours may benefit from up to 90 g per hour. Another review recommends about 60 g/h for 2-3 hours and about 90 g/h for ultra-endurance events, and notes that such high rates need a mix of carbohydrate types so the gut can absorb them. It also says the amount can be adjusted downward when exercise intensity is low.
So the old “60 g an hour for everyone” is one point in a range. Gels, bars, rice cakes, bananas and sports drink all count; add up the grams on the labels. Gut tolerance is trainable and individual, so rehearse your plan on long training rides before an event, and drink regularly. If you have diabetes or another medical condition, ask your clinician or a registered dietitian before changing how you fuel. The position paper from the Academy of Nutrition and Dietetics, Dietitians of Canada and the American College of Sports Medicine advises referring athletes to a registered dietitian nutritionist for a personalized plan. If weight loss is also a goal, read cycling for weight loss first, because under-fueling long rides backfires.
Recovery and sleep
Fitness is built in the recovery that follows training. A review of sleep in athletes notes that sleep deprivation can have significant effects on athletic performance, especially submaximal, prolonged exercise, which is exactly what endurance riding is. Plan at least one easy or rest day each week, add a lighter week every few weeks, and treat persistent fatigue, a resting heart rate that stays elevated, or sinking motivation as a signal to back off. Unexplained chest pain, fainting, or breathlessness out of proportion to effort calls for medical advice before further training.
Checks before long rides
Longer rides mean more hours for a loose part or low tire pressure to matter. Run through the pre-ride checklist, carry repair basics, and if you ride in company read how to ride safely in a group. When your endurance reaches multi-day trips, bikepacking is the natural next step.
Sources
- Seiler: What is best practice for training intensity and duration distribution in endurance athletes? (Int J Sports Physiol Perform, 2010)
- Nielsen et al.: Excessive progression in weekly running distance and risk of running-related injuries (J Orthop Sports Phys Ther, 2014)
- Buist et al.: The GRONORUN study: a graded training program for novice runners (BMC Public Health, 2007)
- Burke et al.: Carbohydrates for training and competition (J Sports Sci, 2011)
- Jeukendrup: A step towards personalized sports nutrition: carbohydrate intake during exercise (Sports Med, 2014)
- Academy of Nutrition and Dietetics, Dietitians of Canada and ACSM: Nutrition and Athletic Performance (2016)
- Halson: Sleep in elite athletes and nutritional interventions to enhance sleep (Sports Med, 2014)
Last reviewed: October 2026.