If you care about drivetrains, aero tweaks, and wheels on your bike setup, this episode will really scratch that itch. We do a deep dive into the why, how, and what of Silca's new diamond-polished chains,  how properly-lubed chains affect cog and chainring wear and tear, and whether you really need to replace that quick link after each chain connect/disconnect cycle. We also get to the best ways to locate your hydration on long rides and the question of whether — wheelwise — deeper is always better.