44 - Go Faster on the Bike Pt 3

What this episode covers

* 3:00 custom, 3D printed aerobars * 4:00 off-the-shelf, long-pad options * 8:30 Morf bars * 11:15 the advantages of shorter crank arms * 13:15 crank length is part of your drive train * 17:00 into the weeds we go about crank arm length! * 20:00 Andrew's thoughts on ceramic bearing upgrades: a lot of money for minor gains * 21:30 where do you find bearings on a bike and how upgrading them to ceramic may be beneficial * 23:15 the benefit of oversized jockey wheels * 26:00 the benefit of a clean and lubricated chain * 27:00 what does a squeaky drivetrain mean * 28:00 pros and cons of dry lube * 29:30 1x vs 2x drivetrains: 1x is simpler and a little more aerodynamic, but at the cost of higher friction drag * 39:00 rewind to the cost of a full Ceramic Speed [https://www.ceramicspeed.com/en/cycling/] upgrade  * 41:00 on tires, tire pressure, and rolling resistance * Continental Gatorskin @ 29kph & 100PSI has a rolling resistance of 20.2W / tire (40.4W per pair) * Continental GP5000 @ 29kph & 100PSI has a rolling resistance of 10.7W / tire (21.4W per pair) * 48:00 tire pressure: hysteresis losses vs vibrational losses * 51:45 max tire pressure: tire max vs rim max * 54:15 wider tires will have a lower rolling resistance at the same air pressure as narrower tires * 55:15 get a pump with a reliable pressure gauge  * 56:00 butyl tubes vs latex tubes: latex tubes must be inflated more frequently, but come with a savings of ~2W per tire (4W total) when compared with butyl * 58:15 the cost of poor cornering in a course with a 90deg turn every 1km  * If baseline for a confident bike handler, cornering at 0.8g is 240W * Then someone who is overly cautious and can only corner at 0.3g is 247W * 1:04:00 revisiting rim vs disk brakes Check out part 1 [https://x3training.com/endurance-innovation-38-go-faster-on-your-bike-pt-1/] and part 2 [https://x3training.com/endurance-innovation-42-go-faster-on-your-bike-pt-2/] of our series. The resources we sited in the episode were the 1x v 2x article [https://www.cyclingabout.com/drivetrain-efficiency-difference-speed-between-1x-2x/], the excellent Bicycle Rolling Resistance [https://www.bicyclerollingresistance.com/road-bike-reviews] site, and the FLO tire pressure [https://flocycling.com/blogs/blog-1/flo-cycling-tire-pressure] article.