YOUR CYCLING AGE

Your Cycling Age is the chronological age at which your current watts-per-kilogram would be the median performance for a trained cyclist of that age. We compare your W/kg against percentile tables built from Roadman's 250-rider benchmark dataset and published power-profiling data (Allen & Coggan), then interpolate across age brackets to find the match. Training volume and experience adjustments are applied on top — because a 15-hour-per-week rider and a 4-hour rider with the same W/kg are in different places physiologically.

The research behind it:The fitness-age concept comes from the Norwegian HUNT Study (Nes et al., 2011), which used VO2max data from over 55,000 participants to estimate biological fitness age. We've adapted this approach for cycling-specific power output. The decline model draws on Tanaka & Seals (2008), who showed that trained athletes decline at roughly 5% per decade versus 10% for sedentary populations — meaning consistent training effectively halves the rate of physiological ageing.

Masters-specific evidence:Pollock & Lazarus et al. at King's College London studied masters cyclists who maintained regular training and found they preserved immune function, muscle mass, and body composition at levels comparable to much younger adults. Pino et al. (2021) mapped masters cycling performance decline curves specifically, providing the age-group benchmarks that underpin this calculator.

What it doesn't capture:This is a population-level model. Individual variation in ageing rate is significant — genetics, injury history, stress load, sleep quality, and nutrition all modulate decline. W/kg is the best single-number predictor of climbing performance but doesn't tell the full story for flat terrain (where absolute watts matter more) or for anaerobic capacity. If your FTP test is more than three months old, retest before putting too much weight on these numbers.

Last updated: July 2026 · Tool version 1.0