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Shimano RD-M771 XT Top Normal Rear Derailleur

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Product Description

Key Features:
  • Deore XT rear derailleur delivers reliable and precise shifting with a stiff and lightweight open design
  • All-alloy construction leads to lower weight without compromising strength and durability
  • Four fluorine-coated link pin bushings make this one of the slickest shifting derailleurs on the trails
  • High rigidity wide outer link braces the pulley body to increase pivot joint rigidity
  • Mega9 compatible for use with 9-speed drivetrains
  • Durable sealed bearing tension pulley for low friction and smooth running of the drivetrain
  • Top normal spring uses the spring to select higher gears, best suited to use with Rapidfire shifters
  • Can be combined with Dual Control levers
  • Rubber bumper reduces noise when used on non-conventional frame designs
  • Weight: 239 grams SGS

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    Derailleur/Mech Guide

    What are derailleurs and mechs?

    Derailleurs and mechs are two names for the same thing – the parts of your drive train that move the chain between chainrings for the front derailleur/mech and between the cassette cogs for the rear derailleur/mech.

    Who needs a derailleur or mech?

    Not all bikes have derailleurs, but if your bike has conventional gearing rather than singlespeed or hub gears, you will have at least a rear derailleur. These parts are exposed and somewhat vulnerable to damage, so you may need to replace them if this happens.

    What are the choices?

    Your choice will largely depend on what is compatible with the rest of your drivetrain, but there are different options for road and mountain bike, by the big three manufacturers, Shimano, SRAM and Campagnolo.

    What should I buy with them?

    If you’re replacing a front or rear mech, you may need to replace some other parts of your drivetrain as well, for compatibility or because you want them to wear together. These might include the chainrings, rear cassette or chain.

    Anything else?

    It’s not just compatibility with your other components you need to consider with a mech replacement. Derailleurs also have different fittings for various frame compatibilities, including braze-on fittings and a bolt-on collar.

    Delivery & Guarantee

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    Please note that Pre-Order dates can sometimes change due to updated stock information.

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    Returns & Warranty

    It's easy to return a product with our 365 day, hassle free returns.

    We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).

    Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.

    If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.

    For more information please visit our Returns & Warranty page.