• Chambre-à-air Continental MTB 29 Light
Chambre-à-air Continental MTB 29 Light
  • Presta
    PRESTA

    Les valves Presta ou valves françaises sont plus étroites que les autres valves (6 mm au lieu de 8). Elles se contentent d’un plus petit trou de jante, et conviennent donc particulièrement pour les jantes étroites de course sur route. Elles sont plus légères que la valve Auto ou la valve Dunlop d’environ 4 à 5 grammes, on les trouve donc de plus en plus sur les jantes de compétition/haut de gamme en VTT, y compris en DH.

    Elles peuvent être fermées manuellement grâce à une petite molette aussi appelé "poulet".
    Certaines sont démontables, permettant :

    a) l'ajout de latex liquide dans la chambre
    b) la mise en place d'une extension de valve pour jantes profilées.

    Contrairement à certaines idées reçues, il n’y a aucune différence notoire entre les valves pour ce qui concerne leur capacité à maintenir l’air.

Continental MTB 29 Tube
Light

Continental

Ultra-light inner tube for competition, for those who want to optimize the weight and rolling resistance. Please note, the wall thickness can be reduced to 0.45mm, increasing the risk of puncture. These tubes also require more frequent re-inflation.

• Presta valve equipped with a tightening nut at its base, making the tube last longer by reducing the puncture risk associated with friction between the tube, tyre and rim when breaking.

Presta valve have a removable valve ...
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From : 7.99 €

-27%

RRP : 10.99 €

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SKU Capacity Valve Type Valve size Weight* Practice Stock RRP Price Discount Quantity Total Add
21001014 29 x 1.75-2.40 Presta 42 mm 142 g Light Inner Tubes expected 10.99 € 7.99 € -27% 7.99 €

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* +/- 8% (manufacturer's indicative weight)

Description

Ultra-light inner tube for competition, for those who want to optimize the weight and rolling resistance. Please note, the wall thickness can be reduced to 0.45mm, increasing the risk of puncture. These tubes also require more frequent re-inflation.

• Presta valve equipped with a tightening nut at its base, making the tube last longer by reducing the puncture risk associated with friction between the tube, tyre and rim when breaking.

Presta valve have a removable valve core.

SIZE MATCH MATRIX :

REFERENCE ETRTO INCHES MM
21001009 47-622 -> 60-622 28/29 x 1,75 -> 28/29 x 2,40 -


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