Product Description

Derailleur hanger, gear mech hanger, dropout replacement for BTwin, Decathlon, Rockrider bike models:

    UNION rear derailleur hanger manufactured by Marwi one of the most know manufacturers in the world:
    • Material: Cast aluminium.
    • Bolts included.
    • Marwi catalog number: GH-063
    • AKA mech hanger, gear hanger: 
    For any questions please contact us or send an email to:
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    To be sure if this the right part, please send us photos of:
    1. Your derailleur hanger from both sides;
    2. And if possible bike‘s frame part photos, where dropout was attached.

    Customer ratings and reviews for GH-063 Derailleur hanger for B'Twin, Decathlon, Rockrider and some other bikes

    2022-03-28 21:52
    the gearhanger (derailleur) did fit my bike elanus parts was quick to ship and it is easy to find the part at the website.
    2020-12-16 19:58
    Trusting on a brand which I just found out was little risk takin move for me, but as I was in desperation, took a gamble and these guys proved me wrong. My frame was almost ruined because of the broken hanger. Thanks a ton Elanus for everything!

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    Shipping information
    With UPS delivery worldwide 2-5 working days.
    With POST delivery 1-4 weeks worldwide.
    100% satisfaction guarantee
    We have a 100% money back satisfaction guarantee policy.
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