AJA #32: Marginal Gains for Commuters, Big Riders, and Motorcycle Chains

Would your motorcycle chain benefit from an afternoon in the chain wax spa? If you use a gel packet as an improvised tire boot, how much will it affect your bike's performance? When using the Rule of 105, should you be using the rim width at the brake track, or the widest point of the rim as your measurement? And for those of us carrying lunch, clothes, and a computer to the office as we commute by bike, how can we be more aero? Josh bravely answers all these questions...and for one of them, even does so definitively. Don't miss this astonishing episode of Ask Josh Anything!