Through the Eyes of a Doughnut | Tech Tuesday #234

Another video for the bicycle educators out there. This time Calvin shares a trick to help your visualize shifting with the aid of a delicious round treat. Doughnuts! Is there anything they can’t do? ➤ Fix It: Did you know that Park Tool is the #1 resource for bicycle repair education? • Visit our YouTube Channel: • Visit the Repair Help section of : • Check out The Big Blue Book of Bicycle Repair: ➤ About Park Tool: Since our founding in 1963, Park Tool has been the leading name in bicycle tools. Our YouTube channel is an extension of our mission to be the ultimate resource for mechanics and riders of all skill levels. Here you will find comprehensive repair help tutorials for a wide range of components and processes, as well as troubleshooting guides, tips and tricks, and information on the latest Park Tool products. ➤ Subscribe: ➤ Like: ➤ Follow: