tag:blogger.com,1999:blog-1564958057737541664.post240990568526222783..comments2024-02-14T17:11:22.168-08:00Comments on On Bicycles, and.... what else is there?: drivetrain losses: introductiondjconnelhttp://www.blogger.com/profile/01484858820878605035noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-1564958057737541664.post-55447839722974630192024-02-14T16:34:04.550-08:002024-02-14T16:34:04.550-08:00My initial thought on the inverse relationship bet...My initial thought on the inverse relationship between power / tension and frictional losses is Poisson’s ratio. Unit cells contract under tension, so the amount of metal-to-metal contact decreases with increased load. <br /><br />An alternate thought is related to the accuracy of the measurement equipment. Not knowing how accurately the tester was able to measure the input and output power, it could simply be that we are seeing the absolute values of a fixed error on an increasing input and output. As of the last few years there are some sophisticated load testers the can detect very small (<<1W) differences in load; whether this equipment existed at the time these data were gathered, and whether it was used in the test, is unknown. Jasonhttps://www.blogger.com/profile/03863846769611811156noreply@blogger.comtag:blogger.com,1999:blog-1564958057737541664.post-28108049493412409082013-10-24T20:29:14.908-07:002013-10-24T20:29:14.908-07:00Good blog. Found what I was looking for: 2-5% loss...Good blog. Found what I was looking for: 2-5% loss when choosing small cogs over larger chainring.Anonymoushttps://www.blogger.com/profile/09287624284451899598noreply@blogger.com