Shimano RD-TY21B Rear Derailleur for Mountain Bikes

Upgrade your mountain bike's shifting performance with the Shimano RD-TY21B Rear Derailleur

Product Price

$17.99

Product Review Score

4.31 out of 5 stars

131 reviews

Product Summary

The Shimano RD-TY21B Rear Derailleur is a high-quality, reliable option for mountain bikers looking to upgrade their bike's shifting capabilities. Its smooth operation and durability make it a great choice for any rider.

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Additional Product Details

  • Model: RD-TY21B Black Rear Derailleur, suitable for 6/7speed
  • 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 rear derailleur is hub bolt mount, not direct mount. Please check the mount type of the original part before ordering.)
  • Scope of Application: Suitable for mountain bikes, station wagons, folding bikes, etc. If you have any questions, please feel free to contact us. We will provide timely response and quality service

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