Antidote Carbon Jack 2015

En esta entrada voy a analizar a la nueva Antidote Carbon Jack 2015, una de las grandes novedades de la temporada. Este modelo es una evolución de la Antidote Lifeline Nano pero los cambios han sido muy numerosos y en algunos casos bastante importantes: Nueva geometría (73º de Sillín...), ruedas de 27.5'', triangulo trasero fabricado en carbono y un par de cambios en el sistema de suspensión (160mm de Recorrido, anclaje del amortiguador, etc...).
Antidote utiliza un sistema de Pivote Virtual (FDS) con el amortiguador colocado muy cerca del eje de pedalier, un detalle que impide la utilización de un desviador delantero. Hace unos años esto era un problema pero hoy en día es básicamente una ventaja. Los diseñadores saben perfectamente que tipos de desarrollos van a utilizar los usuarios y pueden ajustar el sistema de una manera muy precisa. En el caso de la Antidote Carbon Jack el sistema está optimizado en torno a un plato de 28T, un desarrollo algo corto para los Pros pero que funciona muy bien para la inmensa mayoría de la gente. El Pedal-Kickback (13º) y el Brake-Squat (81%) mientras tanto se mantienen en un nivel medio, algo totalmente previsible. 

En la gráfica del Leverage Ratio vemos como el sistema es del tipo progresivo (3.0-2.4). El primer tramo de la gráfica tiene una progresividad bastante suave pero en la parte final del recorrido el sistema se vuelve mucho mas progresivo, por lo que el funcionamiento es diferente al de la mayoría de Pivotes Virtuales, el único que se parece un poco es el VPP, pero la Antidote tiene un primer tramo mucho mas sensible. En cuanto al amortiguador el cuadro monta de serie un CCDB Air de 200x57mm y la idea de girarlo 90º es una autentica genialidad ya que los diales son completamente accesibles. En este apartado es casi imposible hacer una crítica... El sistema funciona muy bien y han elegido el mejor amortiguador del mercado. 

Un saludo.

13 comentarios:

Unknown dijo...

What a fantastic design and execution!

Daniel Andrizzi dijo...

Hi Antonio, do you think this leverage ratio is progressive enough for heavier riders? (~110kg)

How would you compare this to the reign advanced?

Hola Antonio , ¿crees que este ratio de apalancamiento es lo suficientemente progresista para los jinetes más pesados ​​? ( ~ 110 kg )
¿Cómo comparar esto con reign avanzado ?

Antonio Osuna dijo...

Hello Daniel,

The LR is very progressive, very nice for a bike like this one. The only problem is that the average LR is a bit high (2.8:1) and that doesn't work very well for heavy riders. The Giant Reign has the same average LR, but the difference is the shock... The CCDB Air on the Antidote it's very big and it works with low pressure, the RS Monarch on the Giant is smaller and works with a lot of pressure, the Giant can't use a CCDB Air, so that's why the Antidote is a better option.

Best regards,
Tony.

Daniel Andrizzi dijo...

Thank you Tony! I know the LR on the Transition Patrol is lower, what are your thoughts comparing that bike and the shock options to the Antidote?

Antonio Osuna dijo...

The Transition Patrol is a better option for heavy riders, LR is much lower and you can order it with a CCDB Air too, so that's a bonus.

Best regards,
Tony.

JanPutniorz dijo...

Hello Antonio,

I'm Jan Putniorz from Antidote Bikes, first of all congrats for good job and all the researches you should done!

Your calculations were pretty well made, I just want to point two things : Our suspension in CarbonJack is optimized to 30T and has more then 100% (about 110%) AntiSquat with this chainring, with 32T about 98% (for example 32T - 16T). Leverage ratio 2,9-2,25 - We believe there's a best line on your actual chart.

Thanks again and remember well open for any questions! :)

Also, Please check actual geometry on our website: http://www.antidotebikes.com/#carbonjack.geometry

Antonio Osuna dijo...

Hello Jan,

Nice to hear that you like the website. Some people think that I use a very high center of gravity so maybe that's why I'm getting lower AS results. About the LR I'm not sure how do you get it so low unless the bike has a litte bit less of travel... maybe it's an odd number and you are rounding up the numbers to 160mm? Anyway, even if I'm close enough I would like to be even closer, so if you send me the PDF version of the geometry I can update the blog.

Best regards,
Tony.

Unknown dijo...

Any chance you will analyze the new Dark Matter from Antidote? Kinematics look unbelievable to me.

Unknown dijo...

The Dark Matter uses a very unusual but not completely unheralded linkage. See the Solstice bike and the Devinci Wilson (both on this site) for linkages that exhibit strong similarities. The novelty comes by way of the high pivot implementation. An analysis of the Dark Matter would be fascinating.

Un saludo
Chris

Unknown dijo...

I think it's also the first high pivot bike to use a reverse horst-link as well. Most other high pivot bikes are simple single pivot designs. I would like to see what they managed to achieve with the anti-rise figures. There is a rough modelling on Linkage X3 and the kinematics look astonishing. I would like to see if they hold up with a more accurate model.

Simon851 dijo...

Hi Antonio,

would you suggest to use the standard or the extra volume air can for a CCDB Air?

Best,
Simon

Antonio Osuna dijo...

Each person is different. If you are using the standard air can and can't use more that 80% of the travel then it's probably a good idea to get the XV Can. It's a "cheap" part so there is no need to think too much about it.

Best regards,
Tony.

Unknown dijo...

Hi Antonio, could you do the new Antidote CarbonJack 29? Interested in buying one so would like to know what you come up with. Thanks

 

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