A quick attempt at real-time CdA measurement

 This post describes my attempt to calculate the real-time (instantaneous) drag that I'm experiencing when I'm on my time trial bike, using data from my power meter, altimeter and speed sensors.For several years now, I've been measuring and trying to improve the aerodynamic drag of my time trial...

1x (single chainring) conversion for Shimano 105 chainset

This is my Shimano 105 chainset that I've converted to a 1x system.Buying a brand new 105 chainset and then converting it to a 1x single chainring setup was, surprisingly, both cheaper and also lighter than buying a dedicated Shimano GRX 810-1 1x chainset.Previously, I had a SRAM Rival chainset...