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SHIMANO

Screw-On Freewheel 7-Speed 14x28 TZ21

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Sale price: QAR 74.00

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For replacing the freewheel on your Rockrider bike

Easy to use and reliable 7-speed Shimano freewheel.

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Sale price: QAR 74.00

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Product Videos

Product Features

A photo of the Screw-On Freewheel 7-Speed 14x28 TZ21 in use

Compatibility

For 7-speed transmissions and screw-in freewheels.

Repair

Repair your product and give your equipment a second life!

Additional Product informations

Technical features

Gear increments: 14-16-18-20-22-24-28Number of speeds: 7Mount type: Free wheel

Mounting dismantling

Easy assembly using a freewheel tool (https://www.decathlon.fr/demonte-roue-libre-velo-id _ 8351087.html) and an adjustable spanner or open-ended spanner.Easy removal using a freewheel tool (https://www.decathlon.fr/demonte-roue-libre-velo-id_8351087.html), an adjustable spanner or an open-ended spanner and a chain whip (https://www.decathlon.fr/fouet-chaine-demonte-cassette-id_8309913.html).

Care advice

When changing your chainrings, check for wear on the rest of your drivetrain so you can keep your gear changes smooth.To avoid premature wear, regularly clean your drivetrain using suitable products.

Need help?

The technicians at your Decathlon store workshop are available to help you replace the parts of your bike. Feel free to ask them for help!

Product Reviews

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13 reviews






Screw-On Freewheel 7-Speed 14x28 TZ21
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Clunky gear change

Switching between the old worn Shimano and B-Twin reveals the new to have a much noisier freewheel and a very clunky gear change by comparison.

HALTBARER 7-FACH SCHRAUBZAHNKRANZ

Der Schraubkranz ist aus Stahl gefertigt und verfügt über einen integrierten Freilauf, der gedichtet ist und somit auch wartungsfrei. Die Übersetzung bzw. die Abstufung ist gut geeignet fürs MTB oder Crossrad, wenn überwiegend im flacheren Terrain gefahren wird. Vor der Montage sollte das Schraubgewinde eingefettet werden, um sicherzustellen, dass sich nach längerer Zeit und Benutzung der Kranz nicht festsetzt und ein Demontieren oft nur unter erheblichem Kraftaufwand möglich ist. Bei Shimano ist das kleinste Ritzel immer mit 14 Zähnen gefertigt aber z.B. von SunRace gibt es auch ein Modell mit 13 Zähnen.

Valida boh

Il prodotto e' arrivato nei tempi stabiliti, sembra di ottima fattura originale marchiato, montato e tutto assemblato con altre parti cambiate quali, Catena KMC, Cassetta questa in questione va bene. Poi la guarnitura ! Tutto e stato conforme. Ordine compreso. (Le recensioni spesso non vengono pubblicate anche se in regola) !

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