¿Cómo elegir la talla correcta de mi bici nueva?

Las bicicletas hoy en día se pueden elegir como la ropa: en tallas.

 La rodada ya no es el referente para elegir la bicicleta ideal, ahora puedes encontrar hasta 6 o más tallas en una sola rodada, es decir, ahora estan diseñadas para varios tipos de personas y sus estaturas.

 Cada marca utiliza su propia geometría en la creación de marcos y aunque las medidas son "estandarizadas", la geometría de cada marca difiere al momento de elegir una bici, por eso te recomendamos checar este artículo si vas a comprar una bici.

Normalmente las tallas de las bicicletas las puedes encontrar en el tubo vertical, ya sea adelante o atrás. (Puede variar según la marca)
Normalmente las tallas de las bicicletas las puedes encontrar en el tubo vertical, ya sea adelante o atrás. (Puede variar según la marca)

Hay 3 unidades de medidas en las tallas para cuadros de bicicleta:

 - Centímetros

- Pulgadas

- Letras

Normalmente las bicicletas de carretera se miden en centímetros, las de montaña en pulgadas y algunas marcas se ahorran el esfuerzo y utilizan letras. 

Las tallas se definen a través de las medidas de los tubos de la bicicleta:

Nombre de los tubos y ángulos en la geometría de bicicletas CUBE.
Nombre de los tubos y ángulos en la geometría de bicicletas CUBE.

De todos los tubos y medidas que aparecen en el gráfico, los que mas influyen en la elección de la talla correcta son el Stack y el Reach.

El Stack es la distancia entre el eje de centro y la parte mas alta del cuadro, midiendo desde la punta de la dirección en horizontal hacia el tubo de asiento. Esta medida siempre va a variar dependiendo de las marcas y modelos de bicicletas que encontremos. Recordemos que a mayor stack, más alto irá el manubrio.

El Stack en CUBE puede ser mas alto que en BMC y mas corto que en FELT por ejemplo.

Por otro lado tenemos el Reach o el alcance del cuadro, el cual nos determina la longitud del mismo. Entiéndase que mide en horizontal, la distancia entre el eje del pedalier y el centro de la pipa de la dirección.

Entre mas largo sea el reach, más largo será el cuadro. La posición del manillar en cuanto a su distancia desde el sillín también se puede ajustar jugando con potencias de mayor o menor longitud.  

Lo que recomendamos es medir el Seat Tube o tubo vertical para poder determinar la altura ideal a usar y compararlo con la distancia del tubo horizontal. Es mas fácil ajustar la altura del asiento y tal vez usar una talla mas chica en stack que acortar y tener que conseguir una potencia de la medida correcta para conseguir el reach. 

Esta recomendación es pensando en que sin hacer estudios biomecánicos o bikefitting puedas elegir tu bici y te puedan guiar en la tienda para hacer la elección correctamente..

Sin embargo somos creyentes de que un buen bikefitting (como el Bikefitting.com de Shimano) y un experto calificado para hacer las pruebas y estudios puede brindarte una asesoría 100% confiable y mas acertada que practicar el dicho del "ojo de buen cubero". 

Laboratorio de Bikefitting.com de Shimano en LBU Bike Store Patriotismo
Laboratorio de Bikefitting.com de Shimano en LBU Bike Store Patriotismo

De todos modos y siendo un poquito menos técnicos, te queremos brindar un apoyo un poco mas amigable y gráfico para que puedas determinar a primera instancia cual es la medida mas cercana a lo que debes usar (recordemos que TODAS las medidas son solo una guía, ninguna es 100% acertada ya que puedes configurar y redefinir las medidas en tu bicicleta con piezas nuevas). 

Te dejamos una tabla de medidas equivalentes entre las distintas unidades de medición que se utilizan actualmente:

Tabla de equivalencias entre tallas y unidades de medición.
Tabla de equivalencias entre tallas y unidades de medición.

Una vez sabiendo cuales son los equivalentes entre las distintas tallas y unidades de medición, pasemos a que conozcas la talla mas cercana a lo que necesitas según tu estatura:

Tabla para conocer tu talla (lo mas cercana posible) según tu estatura.
Tabla para conocer tu talla (lo mas cercana posible) según tu estatura.

Por último queremos mencionar que la talla, rodada y tipo de bici se ven fuertemente influenciados por el tipo de uso que le vas a dar a tu bicicleta.

 

Normalmente encontraremos 3 tipos de posturas:

Posturas mas comunes de encontrar en bicicletas, no son todas.
Posturas mas comunes de encontrar en bicicletas, no son todas.

Como se puede notar en la imagen, las geometrías de cada bici son distintas, por lo tanto la talla y seguramente las medidas de stack y reach, pero al final son las que mejor le acomodan a tu cuerpo y te harán tener una mejor experiencia al rodar.

Esperamos que esta entrada del blog te haya sido de ayuda, si aún tienes dudas no lo pienses 2 veces en contactarnos, ya sea a través de FacebookInstagram o al correo contacto@labiciurbana.mx.


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    On Christmas Day, the first US-born pope, offered the traditional “Urbi et Orbi” blessing (“To the City and to the World”) from the balcony of St Peter’s, surveying a world speckled with conflicts from Yemen to Myanmar, and calling for compassion towards those who have fled their homelands to seek a future in Europe and America.
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    Leo, who was elected on May 8, said Thursday that Jesus Christ is “our peace” because he “shows us the way to overcome conflicts, whether interpersonal or international. With his grace, we can and must each day our part to reject hatred, violence and opposition, and to practice dialogue, peace and reconciliation.”
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    The pontiff began by asking for “justice, peace and stability” for Lebanon, the Palestinian territories, Israel and Syria. Later, he said that, by becoming man, “Jesus took upon himself our fragility,” allowing him to identify “with those who have nothing left and have lost everything, like the inhabitants of Gaza.”

    Leo celebrates Christmas Holy Mass at the Vatican.
    Leo celebrates Christmas Holy Mass at the Vatican. Yara Nardi/Reuters
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    “Fragile is the flesh of defenseless populations, tried by so many wars, ongoing or concluded, leaving behind rubble and open wounds,” Leo said. He quoted an Israeli poet, Yehuda Amichai, who called for peace to blossom “like wildflowers.”

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    The acting Latin Patriarch of Jerusalem Pierbattista Pizzaballa attends a morning Mass at Saint Catherine’s Church, in the Church of the Nativity, in Bethlehem, in the Israeli-occupied West Bank December 25, 2025. REUTERS/Mussa Qawasma
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    On Christmas Day, the first US-born pope, offered the traditional “Urbi et Orbi” blessing (“To the City and to the World”) from the balcony of St Peter’s, surveying a world speckled with conflicts from Yemen to Myanmar, and calling for compassion towards those who have fled their homelands to seek a future in Europe and America.
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    Leo, who was elected on May 8, said Thursday that Jesus Christ is “our peace” because he “shows us the way to overcome conflicts, whether interpersonal or international. With his grace, we can and must each day our part to reject hatred, violence and opposition, and to practice dialogue, peace and reconciliation.”
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    The pontiff began by asking for “justice, peace and stability” for Lebanon, the Palestinian territories, Israel and Syria. Later, he said that, by becoming man, “Jesus took upon himself our fragility,” allowing him to identify “with those who have nothing left and have lost everything, like the inhabitants of Gaza.”

    Leo celebrates Christmas Holy Mass at the Vatican.
    Leo celebrates Christmas Holy Mass at the Vatican. Yara Nardi/Reuters
    Leo holds an incent burner at St Peter’s Basilica.
    Leo holds an incent burner at St Peter’s Basilica. Tiziana Fabi/AFP/Getty Images
    The pope’s first Christmas since his election took place in wet and cold conditions, but that failed to deter large crowds from coming out to hear his message.

    Earlier during Mass, he asked how, at Christmas, “can we not think of the tents in Gaza, exposed for weeks to rain, wind and cold.” With more than 400,000 homes destroyed during Israel’s war against Hamas, Gazans are being forced to choose this winter between living in tents exposed to the elements or living inside buildings that could collapse any minute.

    “Fragile is the flesh of defenseless populations, tried by so many wars, ongoing or concluded, leaving behind rubble and open wounds,” Leo said. He quoted an Israeli poet, Yehuda Amichai, who called for peace to blossom “like wildflowers.”

    Related article
    The acting Latin Patriarch of Jerusalem Pierbattista Pizzaballa attends a morning Mass at Saint Catherine’s Church, in the Church of the Nativity, in Bethlehem, in the Israeli-occupied West Bank December 25, 2025. REUTERS/Mussa Qawasma
    Christmas celebrated once again in Bethlehem but West Bank suffering persists

    Later during his Christmas message, he called for compassion towards those “who are fleeing their homeland to seek a future elsewhere, like the many refugees and migrants who cross the Mediterranean or traverse the American continent.” He offered Christmas greetings in different languages including Italian, English, Arabic, Chinese, Polish.

    Since his election, Leo has highlighted the plight of those suffering of those in Gaza, and has been outspoken by calling for the better treatment of migrants. In his first major interview in September, the American pope voiced concern over “some things” happening in the country of his birth, highlighting the significance of a letter his predecessor, Pope Francis, had sent to US bishops earlier this year, rebuking the administration’s deportation plans.

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