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Thanks for this comment. For anyone interested in hearing more -- from road/track cyclists who can't use non-UCI compliant equipment -- I highly recommend sear

Thanks for this comment. For anyone interested in hearing more -- from road/track cyclists who can't use non-UCI compliant equipment -- I highly recommend searching Youtube for content featuring Dan Bigham. He owned the hour record briefly (about a year) until it was broken by Filippo Ganna (late 2022). They're two very different body types and because Dan is the aero & performance engineer working for INEOS (Ganna's pro team), he helped design and optimize the same frame (Pinarello Bolide) to work with a far different rider in a different position. As zh3 notes, the rider & their position has more to do with aero optimization than the frame, and it's interesting to hear someone like Dan talk about how the setup he used for his hour record attempt was so different from Ganna's. Here are a few links to get started: https://www.youtube.com/watch?v=YOLlyKnMz3Y https://www.youtube.com/watch?v=YOLlyKnMz3Y https://www.youtube.com/watch?v=QweOJXRcb0g https://www.youtube.com/watch?v=QweOJXRcb0g https://www.youtube.com/watch?v=WHc52cGz4AA https://www.youtube.com/watch?v=WHc52cGz4AA https://www.youtube.com/watch?v=cgpywSW6t0M https://www.youtube.com/watch?v=cgpywSW6t0M https://www.youtube.com/watch?v=qKT9DsRtuCc https://www.youtube.com/watch?v=qKT9DsRtuCc

zh3 3y ago
Dan's name does indeed come up a lot in our circles :) Thanks for the links, even being in the biz there's always more to learn.
canucker2016 3y ago
Lionel Sanders (Canadian Triathlete) doing aero testing on the road and the velodrome: https://www.youtube.com/watch?v=6u_Tw3S8KWA https://www.youtube.com/watch?v=6u_Tw3S8KWA https://www.youtube.com/watch?v=O6sqOX1nUIU https://www.youtube.com/watch?v=O6sqOX1nUIU On the road, he was able to reduce his drag coefficient by lowering his hands/arms - (0.23 to just under 0.20), but on the velodrome, he wasn't able to reproduce the improvement despite several variations in hand/body position. In the first video, the testing expert mentions that cycling pros would be in the range 0.16 to 0.18 (smaller/lighter cyclists had the lower coefficients).

zh3 3y ago

Dan's name does indeed come up a lot in our circles :) Thanks for the links, even being in the biz there's always more to learn.

canucker2016 3y ago

Lionel Sanders (Canadian Triathlete) doing aero testing on the road and the velodrome: https://www.youtube.com/watch?v=6u_Tw3S8KWA https://www.youtube.com/watch?v=6u_Tw3S8KWA https://www.youtube.com/watch?v=O6sqOX1nUIU https://www.youtube.com/watch?v=O6sqOX1nUIU On the road, he was able to reduce his drag coefficient by lowering his hands/arms - (0.23 to just under 0.20), but on the velodrome, he wasn't able to reproduce the improvement despite several variations in hand/body position. In the first video, the testing expert mentions that cycling pros would be in the range 0.16 to 0.18 (smaller/lighter cyclists had the lower coefficients).