What makes bigger wheels better - and worse - for gravel, with Lennard Zinn

Like with road wheels, 700C is the standard for gravel bikes. But why? Since so many other parts of the bicycle are proportional to the rider, why are wheels a single size? To answer these questions and more, I pedal a 750D gravel bike over to visit Lennard Zinn, the master framebuilder who specializes in bikes for small and tall riders, and the author of many books including Zinn & The Art of Road Bike Maintenance. https://zinncycles.com/ Zinn and the Art of Road Bike Maintenance, The World's Best-Selling Bicycle Repair and Maintenance Guide, 6th Edition: https://zinncycles.com/ Want to see what I'm testing and where? Follow me on Strava: https://www.strava.com/athletes/ben-delaney or on Instagram: https://www.instagram.com/ben_delaney -- The Ride is supported in 2025 by: Castelli clothing: http://tinyurl.com/43k6pftp Perc coffee: https://tinyurl.com/fjr7nurr (save 15% with code 'ride15') Saris racks: https://saris.com/collections/racks# (save 15% with code 'ben15') Silca maintenance: https://bit.ly/47xxvzj (save 10% with code 'theridewithben10') BikeTiresDirect: https://tinyurl.com/yc7vxujh (save 10% with code 'THERIDE') The Cyclist Lawyer: https://www.thecyclist-lawyer.com/ Shimano shoes & glasses: http://tinyurl.com/ye274tep Feedback Sports stands & tools: https://bit.ly/3S9Dq8r