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Shimano RD-TY21B Bike Rear Derailleur 6/7 Speed

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Product details

Management number 235470347 Release Date 2026/07/02 List Price US$8.00 Model Number 235470347
Category

Shimano RD-TY21B Bike Rear Derailleur 6/7 Speed

Shimano RD-TY21B Bike Rear Derailleur is a reliable and durable component designed to enhance the performance of your 6-7 speed bicycle. It features a Direct Mount design for enhanced stability, is easy to install and adjust, and provides smooth and precise shifting. Compatible with a wide range of bicycle models, this rear derailleur is an excellent choice for riders looking to upgrade their bike's shifting performance.


Feature

  • MODEL: Shimano RD-TY21B
  • PERFORMANCE: Forged with high-hardness aluminum alloy. The hollow weight-reduction design is adopted, and the speed change is more stable.
  • PRECISE ADJUSTMENT: High-hardness aluminum alloy body adjustment, adjustment is more precise. It can be adjusted slightly in multiple places to ensure accurate speed change performance.
  • INSTALLATION: Fast and convenient installation and easy maintenance. (Note: The bike's rear derailleur includes a direct mount and a hanger mount. Please check the mount type of the original part before ordering.)
  • SCOPE OF APPLICATION: Suitable for mountain bikes, station wagons, folding bikes, etc.


Specification:

Model Shimano TY21B,  Black
Speed grade 6 speed/7 speed
Installation method Direct mount and hanger mount
Weight About 267g
Application  Suitable for mountain bikes/folding bikes/road bikes/variable speed bikes

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