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Triple Chainwheel Front Derailleur

Sale price: $14.99 Regular price:
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Sale price: $14.99 Regular price:

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Model: 8298275

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Product Features

A photo of the Triple Chainwheel Front Derailleur in use

Triple Chainwheel Front Derailleur is designed for 7 or 8-speed mountain or hybrid bikes. Fits Shimano and Sram.

Front derailleur compatible with all frame diameters. Diameter: 34.9 mm (or 28.6 mm and 31.8 mm with adapter).


For 3x7 and 3x8 SRAM, Shimano or Btwin drivetrains


For maximum 48 tooth gear wheel.


Diameter: 31.8mm (or 34.9mm with adapter).


155 g.

Product Customer Reviews

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132 Reviews
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Triple Chainwheel Front Derailleur,base color
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This product does works well. It's actually precise and also shifts gear quickly!

Front Derailleur

Well constructed unit but be aware that due to the actuation mechanism being rather bulky at the rear it will not fit some bikes with limited clearance between the seat tube and rear wheel or mudgaurd.

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Performs well for the price

Easy to install with various mounts for different clamp sizes. Shifting is light and easy

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Unable to adjust for 3x8, 42,32,22T

For me I could not get this to work, I have 22,32,42 crank set (btwin), but no matter how I adjusted it the throw just did not seen adquate to move across all 3 rings. I have a brand new chain, new rear mech, and the crankset and rear cassette are only 1 year old. I returned to my 13 year old suntour one and that works well (in fact the stoke is a little too far on that) Mountain bike Gear selectors shimano ST-EF29-8 / ST-EF29-L

Thank you for sharing your experience of using this front mech. Installing a front derailleur can feel like alchemy sometimes and certainly isn't the easiest to install, especially with a triple chainset.  MBR probably has the best film available on this topic:
If after checking all of these points, there is no joy, please feel free to return it to us for an exchange or a refund.
Peter Lazarus, National Cycling Manager, DECATHLON

Used this to replace an old derailleur a coup[le of months ago that wouldn't adjust properly and was unreliable. Fitting was easy and it adjusted well. I used this on a bottom pull with a Shimano index shifter and it works well and reliably after it has been set up. I also liked the add on adjustment shims in the clamp which allowed me to make a good fit to the stem. I thoroughly recommend this and would say it is as high a quality as any other front derailleur out there at a bargain price.

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Triple Front Mech

I bought the front mech for my old road bike refubishment project (1985 Barry Hoban/Coventry Eagle) and found that the original front mech did not have enough travel to reach the large chainring. This MTB mech has loads of travel and easily helps the chain to swap between the chainrings. It is bulky compared to the Campagnalo mech that it replaced but does the job just as well.

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excelente relación calidad precio

cumple perfectamente su función para mi mtb de 3 platos. Se adaptó muy bien al diametro de mis tubos al traer dos medidas diferentes de anillos de goma.

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El desviador,muy buen precio y funciona perfectame

soy cliente desde hace tiempo y siempre he tenido buenas experiencias con Uds.

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Desviador delantero

Es muy bueno aunque la regulación es un poco dificultoso para regular recorido. Si no sabes lo mejor es llevarlo a que te lo monten , yo lo e regulado yo y me a costado un poco por lo demás muy bien .

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cumple su cometido

cumple su cometido.

desviador triple B`TWIN

No cambia cuando estas subiendo una cuesta y necesitas cambiar a un plato más pequeño

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Estimado cliente,

Gracias por su mensaje y siento las molestias.

En este caso le invito a pasar por el taller de su tienda habitual para que mis compañeros puedan verificar el estado de la pieza, si usted en todo caso no está satisfecho, comentarle que puede cambiar el producto.

un saludo


Fernandez Angel Director Comercial Pais Ciclismo DECATHLON

Me cambiaron el desviador hace cosa de 1 mes mas o menos y genial... El desviador original de la bici venia mal y como entra en garantia pues genial....

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Me ha gustado el producto

Me atendieron muy bien los operarios

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Additional Product Information



  • 100% Aluminum

Main fabric - Bottom

  • 100% Steel

Technical features:

Top or bottom routed cable Diameter: 34.9 mm (or 28.6 mm and 31.8 mm with adapter). Chainwheel of maximum 48 teeth. 5.5 oz.



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For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

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    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual