Curious minds find more here.Shop smarter, all in one place.
US edition · USD

Aikolesa RD-TY300 6/7-Speed Direct-Mount Rear Derailleur

$18.99 (Price correct as of 11/12/2026 08:13 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 black Aikolesa RD-TY300 is a direct-mount rear derailleur listed for 6- or 7-speed SIS indexed drivetrains and 6-, 7- or 8-speed chains. Its stated gearing specifications include a 14-34T cassette range and 43T total capacity. Confirm the frame interface and the complete drivetrain match before selecting this single-item replacement.

View on Amazon
SKU: B0DYJVRDQX Category:

As an Amazon Associate I earn from qualifying purchases.

You might also need

Shimano Tiagra 4601 10-Speed Bicycle Chain, Silver$20.88 (Price correct as of 11/12/2026 11:49 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.)View on Amazon
Tailcle TX50-7 7-Speed Right Bike Thumb Shifter with Gear Display$15.79 (Price correct as of 11/12/2026 12:39 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.)View on Amazon
SRAM 7-Speed Bike Cassette, 12-32T, Silver$21.50 (Price correct as of 11/12/2026 03:50 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.)View on Amazon

Compare with similar Bike Derailleurs

CYDZSW Rear Bike Derailleur for 7-, 8- or 9-Speed Bikes$18.99 (Price correct as of 11/12/2026 08:13 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.)View on Amazon
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.)View on Amazon
Airuzara Tourney 6/7-Speed Direct-Mount Rear Derailleur$18.99 (Price correct as of 11/12/2026 08:09 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.)View on Amazon

As an Amazon Associate we earn from qualifying purchases.

Quick Summary

The black Aikolesa RD-TY300 is a direct-mount rear derailleur listed for 6- or 7-speed SIS indexed drivetrains. Its stated specifications include a 14-34T cassette range and 43T total capacity. Check the bicycle’s mounting interface and complete drivetrain before choosing it as a replacement.

Key Details

Detail Product information and buyer relevance
Model and type RD-TY300 rear derailleur. Match the model when comparing replacement parts.
Mount Direct mount. Confirm that the bicycle frame uses a compatible interface.
Drivetrain Listed for 6- or 7-speed SIS indexed systems.
Chain Listed for 6-, 7- and 8-speed chains. Chain compatibility alone does not establish compatibility with the shifter and cassette.
Cassette range 14-34T. Compare this range with the cassette on the bicycle.
Total capacity 43T, as listed. Check the figure against the bicycle’s gearing requirements.
Color and quantity Black; one item.

Compatibility, Size and Fit

Gear count alone is not enough to confirm fit. Check the frame’s direct-mount interface, the SIS shifter and cassette, and the chain together. The listed mountain, road, gravel and touring applications do not establish compatibility with every bicycle in those categories.

What to Compare Before Buying

  • Mounting interface: Confirm that the frame accepts a compatible direct-mount derailleur.
  • Shifting system: Check that the bicycle’s indexed shifter and cassette match the stated 6- or 7-speed SIS use.
  • Chain and gearing: Compare the chain speed, 14-34T cassette range and listed 43T total capacity with the existing drivetrain.

If fit or setup is uncertain, have a bicycle mechanic confirm compatibility and installation before riding.

Before You Decide

Match the RD-TY300 to the frame mount, shifter, cassette and chain. Check the listed capacity against the bicycle’s gearing, and use appropriate installation guidance for setup.

Reviews

There are no reviews yet.

Be the first to review “Aikolesa RD-TY300 6/7-Speed Direct-Mount Rear Derailleur”

Your email address will not be published. Required fields are marked *

Scroll to Top