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
To get more benefit for less, have somebody hand you a full water bottle as you go over the top. At 30mph down a 1:12 slope, 500ml of water will add just over 5W to the power which is overcoming the aero and rolling resistance. Total wheel bearing losses, even including seal drag which is not changed by swapping to ceramics, are less than that.
Did you do controlled blind trials comparing steel bearings with ceramics? I say it's all placebo if you claim to feel a difference, or even measure one with an on bike power meter, as the improvement is below the measuring resolution of Powertaps and SRMs