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Relwears RD-TZ500 6/7-Speed Direct-Mount Rear Derailleur

$18.99 (Price correct as of 11/12/2026 08:11 PST · Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

The Relwears RD-TZ500 is a black direct-mount rear derailleur for 6- or 7-speed bicycles. It has a steel body, a plastic 11T guide wheel and support for a freewheel up to 32T. Before choosing it, check your bike’s mounting interface and drivetrain, then compare the freewheel’s largest sprocket with the stated limit. This is a single-derailleur product.

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Quick Summary

The Relwears RD-TZ500 is a black rear derailleur for 6- or 7-speed bicycles. Its listed specifications include a direct-mount design, a plastic 11T guide wheel and support for a freewheel up to 32T. Confirm that the speed range, mounting interface and freewheel size match your bike before choosing it.

Key Details

Detail Product information and buyer relevance
Model RD-TZ500, also identified as RD-TZ500-6/7S; part number RD-TZ500-6/7S-Z.
Speed range For 6- or 7-speed drivetrains. Check that this matches your bike’s drivetrain.
Mount and freewheel Direct-mount design; supports up to a 32T freewheel. Verify both details against your bike’s setup.
Construction Steel body with a plastic 11T guide wheel.
Color and quantity Black; one derailleur.

What to Compare Before Buying

  • Drivetrain: Confirm your bicycle uses a 6- or 7-speed setup. Speed count alone does not establish compatibility with every shifter or drivetrain component.
  • Mounting interface: The derailleur is described as direct-mount. Check that your frame and existing setup use a compatible mounting arrangement.
  • Freewheel size: Compare your largest freewheel sprocket with the stated maximum of 32T.

Before You Decide

Match the RD-TZ500’s speed range and direct-mount design to your bike, and check the freewheel’s largest sprocket against the 32T maximum. If the fit of your setup is uncertain, confirm compatibility with a qualified bicycle mechanic.

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