You are reading a single comment by @gbj_tester and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
@gbj_tester
That's the later 'sea level' bike, not the Mexico 51.151 version. I think the big wheel was probably intended to clean up the wake. I've heard it said that a large part of the benefit of disc rear wheels is not the drag reduction from the wheel in isolation, but the way the large surface area smooths wake turbulence coming off the rest of the bike. Extending that benefit further up the bike than the 700mm permitted by post-Lugano UCI limits might have been a good idea. Heavier is pretty irrelevant when you're aiming to hold a constant speed on a level surface for about 59½ minutes of that hour, and the big wheel would also reduce rolling resistance.