Fitness
Power-to-Weight (Cycling)
Power-to-weight in cycling is watts per kilogram— the key limiter on climbs alongside aerodynamics on flats and descents.
Power-to-weight in cycling is watts produced divided by body mass in kilograms (W/kg)—the main limiter on climbs. A rider at 250 W and 70 kg equals roughly 3.
6 W/kg; small weight changes move the ratio fast. Train FTP and consider healthy body composition, not chronic underfueling.
Flat courses favor raw watts and aerodynamics more than W/kg alone.
Common questions
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What W/kg is competitive for amateurs?
Categories vary by level and terrain; focus on your own trend over seasons rather than internet tables that ignore course and tactics.
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Should I lose weight to raise W/kg?
Only if body fat is high and fueling stays adequate—underfueling lowers power and raises injury risk more than slow weight loss helps.
Related terms
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