750d Wheel Size For Gravel Bikes Explained: What’s The Benefit of Going Even Bigger?
A 750D wheel measures 750mm in bead seat diameter — larger than the standard 700C (622mm) and gravel-popular 650B (584mm). 750D was a niche size used briefly in some recumbents and time-trial bikes; it’s effectively obsolete in modern cycling. Below, we explain the history, who used 750D, and what to do if you own a … Read more