tag:blogger.com,1999:blog-13887692.post3823560345187287817..comments2024-03-13T02:16:08.135-04:00Comments on Cozy Beehive: Factors Affecting Bicycle Transmission EfficiencyRon Georgehttp://www.blogger.com/profile/18394865788996482667noreply@blogger.comBlogger12125tag:blogger.com,1999:blog-13887692.post-50365939241875685452012-06-25T01:05:55.212-04:002012-06-25T01:05:55.212-04:00Ultra Precision strain gauge based āSā beam Load C...Ultra Precision strain gauge based āSā beam Load Cell is versatile, compact and Rugged. It is used for tension measurement, weighing, industrial automation, and research application. It is universal Load Cell Suitable for both tension and compression modes.<br /><br /><a href="http://www.epochloadcell.com/s_beam_load_cell.html" rel="nofollow"> load cell manufacturer </a>Epochhttps://www.blogger.com/profile/05664390405859969300noreply@blogger.comtag:blogger.com,1999:blog-13887692.post-14560018401155610652012-06-10T08:52:28.908-04:002012-06-10T08:52:28.908-04:00Worth looking at a wide 11sp rear and a double tri...Worth looking at a wide 11sp rear and a double triple compact (incorporating two inner chain rings of the same size). The idea of the same inner chain ring on the front is to maintain chain line through gears 1-7/8. Only use the large ring from 8 onwards.<br /><br />The overriding factor in all this would be to tailor the set-up to one's specific requirements and pedaling style. This should also include frame geometry and bike fit. It might be that what's on the market just isn't the right solution to achieve absolute efficiency.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-13887692.post-29399199467346196432012-05-13T20:07:45.766-04:002012-05-13T20:07:45.766-04:00So Ron, at most you sacrafice a maximum 5% in driv...So Ron, at most you sacrafice a maximum 5% in drive train efficiency so that the rider can maintain his optimum RPM which increases rider eficiency. <br /><br />http://www.ismj.com/pages/311417173/ISMJ/journals/articles/Vol.10-No.1-2009/optimal-cadence-selection-during-cycling.aspalloycowboyhttps://www.blogger.com/profile/14429465662167808264noreply@blogger.comtag:blogger.com,1999:blog-13887692.post-14772154049932398112012-05-08T16:05:13.629-04:002012-05-08T16:05:13.629-04:00I think "Bicycling Science" has a pretty...I think "Bicycling Science" has a pretty thorough discussion of cog size and asserts that smaller cogs are significantly less efficient than larger ones. Can't find the exact reference though.<br /><br />Also brings up the point the the derailleur pulleys are very small cogs and introduce a lot of drag. So a single speed is more efficient that a derailleur bike in the same gear ratio.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-13887692.post-24814978873456152912012-04-22T23:05:59.512-04:002012-04-22T23:05:59.512-04:00Who cares who you are...Who cares who you are...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-13887692.post-16471103844728310892012-03-22T04:31:11.611-04:002012-03-22T04:31:11.611-04:00Thanks for the graph :)Thanks for the graph :)jouer au blackjackhttp://www.blackjackgratuit.infonoreply@blogger.comtag:blogger.com,1999:blog-13887692.post-26585217349671794202012-01-22T19:18:23.773-05:002012-01-22T19:18:23.773-05:00Sorry, I must have made a typing error as I was hu...Sorry, I must have made a typing error as I was hurrying up to finish this post. Yeah 44/12 is not really cross chained is it.Ron Georgehttps://www.blogger.com/profile/18394865788996482667noreply@blogger.comtag:blogger.com,1999:blog-13887692.post-67178310913993697782012-01-20T13:45:36.417-05:002012-01-20T13:45:36.417-05:00I'm also not sure I understand this also:
3) ...I'm also not sure I understand this also:<br /><br />3) The 44/12T gear, which is a big front-small rear cross chained scenario<br /><br />I think it's common to refer to the small-small as X-chained, i.e. 22/12. <br /><br />PhilAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-13887692.post-62575430724781922672012-01-20T04:57:06.883-05:002012-01-20T04:57:06.883-05:00Thanks for posting this information Ron. I'm n...Thanks for posting this information Ron. I'm not sure I understand your statement:<br /><br />> 2) The 44/34T gear, which is a big front-big rear cross chained scenario, shows the worst efficiency.<br /><br />It looks like the 44/34 is Gear #10 on the chart. This gear is shown on the graph with an efficiency > 93%. <br /><br />PhilAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-13887692.post-67134092251241382532012-01-20T02:01:03.007-05:002012-01-20T02:01:03.007-05:00Nice and interesting info Ran..... Thanks for shar...Nice and interesting info Ran..... Thanks for sharing.<br />Dan Bennett<br />Accredited British Cycling Tutor<br /><a href="http://www.progressivecyclecoaching.co.uk/HOME.html" rel="nofollow">progressive cycle coaching</a>Dan Bennetthttps://www.blogger.com/profile/05613892141605484945noreply@blogger.comtag:blogger.com,1999:blog-13887692.post-24225732592970815602012-01-18T02:20:55.590-05:002012-01-18T02:20:55.590-05:00Hi Ron, good to see you posting again.
I'm a...Hi Ron, good to see you posting again. <br /> I'm a bit confused by the part at the beginning where you talk about chains that are too long and skip, surely you can have a chain that fits fine in all gears?Bodhttps://www.blogger.com/profile/12802199670242889328noreply@blogger.comtag:blogger.com,1999:blog-13887692.post-83836576301002246602012-01-15T22:41:55.309-05:002012-01-15T22:41:55.309-05:00Interesting read Ron. I was thinking it probably b...Interesting read Ron. I was thinking it probably be apt to define efficinecy. Not all here are engineer types!Anonymousnoreply@blogger.com