tag:blogger.com,1999:blog-4650400550712092979.post8716592254718800938..comments2024-03-25T12:38:12.492+01:00Comments on Linkage Design: Felt Virtue Nine 2014Antonio Osunahttp://www.blogger.com/profile/10075236093614144240noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-4650400550712092979.post-75062301318228652672014-02-21T20:29:13.669+01:002014-02-21T20:29:13.669+01:00Gracias Javier por el comentario. Supongo que el h...Gracias Javier por el comentario. Supongo que el hecho de haber probado una bici con esas cifras te ayuda mucho a la hora de elegir nuevos modelos.<br /><br />Un saludo.Antonio Osunahttps://www.blogger.com/profile/10075236093614144240noreply@blogger.comtag:blogger.com,1999:blog-4650400550712092979.post-74343865631954553412014-02-21T13:03:37.781+01:002014-02-21T13:03:37.781+01:00Totalmente de acuerdo:
Yo tengo la Virtue, pero en...Totalmente de acuerdo:<br />Yo tengo la Virtue, pero en 26. La utilice de prueba pero después de probar muchísimas, me la quede. Es un sistema poco conocido pero brillante en su eficacia. Conforme al gráfico tiene una grandísima eficacia de pedaleo, mejor que mi segunda y tercera candidata: Norco Sight y Santa Cruz Trc. También estoy de acuerdo con el gráfica del Leverage Ratio, es un sistema progresivo y nada lineal. <br />Una gran bici y sistema, que no es conocido y os recomiendo que simplemente la probéis.<br />Te felicito Antonio por tu buen blog.Anonymoushttps://www.blogger.com/profile/14957515689349930771noreply@blogger.comtag:blogger.com,1999:blog-4650400550712092979.post-59180107670380033802014-02-17T15:33:37.418+01:002014-02-17T15:33:37.418+01:00One interesting thing about 6-bar designs is that ...One interesting thing about 6-bar designs is that it is possible to host several different suspension configurations on a quite similar set of physical linkage members (i.e. bars). Consider the Pivot Mach 6, a dual short link 4-bar with superlative pedaling characteristics but rather high PK. It is possible to implement a geometrically and kinematically identical suspension linkage using six rather than four bars by decomposing the rigid rear triangle into three separate bars - chainstay, seatstay and spanning bar. The three piece rear triangle can be just as rigid as the one piece welded rear triangle if constructed sensibly. The only difference is that it is bolted together rather than welded. Why would anyone want to re-implement a perfectly sound 4-bar using six bars? As the described 6-bar performs identically to the original 4-bar there seems no point in such a reimplementation. As it happens the benefit of the 6-bar design lies elsewhere. It is possible to remove the spanning link and substitute a different one that again links upper short link with lower short link but not at the same pivot points as previously i.e. (at least one of) the spanning link pivots would no longer be concentric with the pivots linking the short links to chainstay and seatstay.<br /><br />It was a great surprise to me that invocation of a function in Linkage that performs a conversion of a 4-bar suspension into a 6-bar suspension (select the "6-bar / seatstay wheel" system type in the program) without any additional finessing of the configuration managed to produce a very interesting variation on the Mach 6 design (see the Linkage public domain library) that was particularly well 'balanced' i.e. PK was much reduced while AS around SAG was at very acceptable levels (for 36/15T). Please check this out for yourself in Linkage.<br /><br />So, the interesting thing is with the variation/substitution of one bar the suspension performance of a bike can be altered. And, one bike could host more than one suspension personality. That could be quite useful if pivot hardware could be made robust, light and user serviceable.<br /><br />Un saludo<br />ChrisUnknownhttps://www.blogger.com/profile/17241896695243345163noreply@blogger.comtag:blogger.com,1999:blog-4650400550712092979.post-60009873155391202202014-02-14T06:29:57.955+01:002014-02-14T06:29:57.955+01:00At the very least this shows that an Equilink bike...At the very least this shows that an Equilink bike can be implemented without too many complications. Using carbon flex stays allows the rearmost pivot near the rear axle found on the aluminium models to be eliminated. A collapsed 6 bar design (not used by this bike) in which one end of the control link/equilink is concentric with the lower short link-chainstay pivot or upper rocker-seatstay pivot is also possible. That would eliminate another pivot at the cost of added complexity of the mentioned concentric pivot.<br /><br />While the numbers suggest AS is overdone and PK elevated for a short travel bike, I would be very interested to hear reports about how this bike rides (in small and large chainrings). Unknownhttps://www.blogger.com/profile/17241896695243345163noreply@blogger.comtag:blogger.com,1999:blog-4650400550712092979.post-39422643131379365022014-02-13T19:43:00.158+01:002014-02-13T19:43:00.158+01:00Lástima como empalidecen una gran bici con tanto A...Lástima como empalidecen una gran bici con tanto AS. Es realmente necesario llevar esos valores tan arriba?.<br /><br />Insisto, la misma bici con un 22-36 y un 25% menos de ASy hubiera quedado maravillosa.<br />Fuck!.<br /><br />Saludos.<br />Josep Barberà.https://www.blogger.com/profile/09869671497387547688noreply@blogger.com