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Universal Stem and Handlebar Adapters

Sale price: $8.99 Regular price:
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Sale price: $8.99 Regular price:

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San Francisco, 735 Market St. Options

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Model: 8299154

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Product Features

A photo of the Universal Stem and Handlebar Adapters in use

Universal Stem and Handlebar Adapters is designed for increasing the size of the fork steerer from 1" to 1-1/8" & increasing the handlebar from a diameter of 1" to 1.25" (oversize)

Universal stem adapters to adjust the size of the fork steerer from 1" to 1"1/8 and increasing the handlebar from a diameter of 25.4 to 31.8 mm (oversize).


Grey ring for the steerer and black ring for the handlebar

Product Customer Reviews

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88 Reviews
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Universal Stem and Handlebar Adapters,base color
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I have raised the height of the handlebar precisely to he desired height using the stem and the adaptor(black bush). Great stuff from Decathalon - Thanks I have countered my back problem after PRECISELY raising the height of the handle bar of my BTWIN RICK RIDER.

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Good product

Does what it says on the box

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Adapts 1" to modern stem

Just the thing to fit a modern 1 1/8" stem (e.g. for oversize 31.8mm handlebars) with the quill stem adapter. Didn't need the handlebar shim

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Adaptador de manillar

Se adapta perfectamente a las medidas y tiene buena sujección

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Cumplió perfectamente su función. Adaptó un tallo de manillar de 25,4 a una potencia que superior. Muy contentos.

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Genial, cambié la potencia de mí bici y el manillar quedaba flojo...., con el adaptador perfecto y eso q me dijeron q no servía....

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Adaptador perfecto

Me atendió un vendedor que me supo ayudar muy bien, ya que después de explicar mi problema al tener una bici antigua y necesitar una potencia más corta, me ofreció la posibilidad del adaptador para una potencia de las modernas, al ser estás más anchas. El adaptador perfecto y de fácil montaje.-

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Buen producto

Compre una potencia demasiado ancha para el manillar y gracias a este producto pude ajustarlo perfectamente. Sólo me hizo falta el adaptador del manillar. El adaptador de la potencia lo guardo por si acaso.

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Funciona a la perfección

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Arrivé en bon état…

Arrivé en bon état assez rapidement

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Très limite

Certe l'entretoise joue bien son rôle (côté guidon) sur diamètre , par contre elle est beaucoup trop courte. La portée des brides se fait presque dans le vide. Il manque au moins 8mm.

Pratique, évite le remplacemet...

Pratique, évite le remplacemet du guidon.

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bon produit

bon produit

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Très bon produit

Très bon produit

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Adaptateur potence VTT

manque une rondelle plus large pour permettre d'ajuster la potence

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Additional Product Information



  • 100% Aluminum



Superior quality. Unbeatable prices.

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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    Research and development

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    minimize manufacturing costs

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    lowers overhead and indirect costs


Size Guide Visual