84 - Dan Bigham

Endurance Innovation is now on Patreon! Have a peek at our page and show us some love.4:15 Dan’s interest in the sea level hour record8:00 sea level vs altitude hour attemptsAt altitude, reduce aero drag by ~20% to 25% (at world record hour speeds) while only losing 10% of aerobic capacityThe higher the speed the greater the benefit of altitude. That is, the faster the event, the higher up you want to go12:15 at Dan’s speed, 1W saved in his setup = 50m of extra distance in the hour attempt12:30 the physiological demands of Dan’s hour recordA Watts / CdA of 2250, which works out to ~370W @ a CdA of 0.164!Living on your TT bikeTrain at a race-relevant internal inertia (cadence)The potential role of central nervous system (CNS) fatigueLearning to maintain that optimized position for the duration of the event24:15 the sitting up vs aero tradeoff when climbing~15W benefit to sit up vs aero position, which for Dan makes enough of a difference at ~27kphThe value of a stretch during a position change is not to be undervalued28:30 the value of efficient cornering 30:15 the role of CNS fatigue in performance in an hour record attemptNot well understood at presentDan’s group is studying this effect by taking measurement of nerve impulses to the driving muscles over time and looking at changes36:45 the effect of non-round chainrings40:00 Dan’s non-aerodynamic optimizationsThe more aerodynamically optimized you become, the more reason there is to look at equipmentA new, secret crank setDrivetrain lubricants, chain, cog and chainring design 51:30 Dan’s aero optimizationSkin suitsFront ends / cockpitsAero sensors74:30 some psychological demands of an hour record bidCheck out Dan's retail venture WattShop as well as his Instagram page for products and updates on his upcoming hour attempt.