Shimano Tourney Bicycle Rear Derailleur RD-TY300/RD-TX800

  • RD-TX800
  • RD-TY300

After-Sale Guarantee: 1-Month FREE Return/Exchange and 1-Year FREE Exchange Instead Of Repair

Compatible with 6/7/8 speed shifting drivetrains, the SHIMANO TOURNEY derailleur is offered in a wide range of fitments and cage options.

The RD-TY300/RD-TX800 is compatible with a wide range of Shimano drivetrain systems and is suitable for use with mountain bikes, hybrid bikes, and road bikes. It is engineered to provide accurate and precise shifting, enabling you to quickly and easily change gears to suit the terrain and your riding style.

Shimano TY300 features


  • MODEL: Shimano RD-TY300 / RD-TX800
  • 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 rear derailleur is directly mounted, not hub bolt mounted. Please check the mount type of the original parts before ordering.)
  • SCOPE OF APPLICATION: Suitable for mountain bikes, station wagons, folding bikes, etc. 


Model RD-TY300/RD-TX800
6/7/8 speed
Material Aluminum Alloy
Type Direct Mount
Weight  About 310g


Shimano Tourney Bicycle Rear Derailleur RD-TY300 customer photos

Customer Reviews

Based on 5 reviews
Great derailleur!

Shimano quality, great derailleur!


Fast shipment.Item corresponds to the description.Bike runs like a new again.I am happy with this purchase.

Luz Adriana Pe?a


It works! Well, whaddya expect?

First time purchasing a rear derailleur for a DIY fix. Well, well, well, it works, and I'm pleased. The best part is that "the Mrs." continues to prove her handy-woman status. My hats off to her majesty!

Edgar cintron
Awesome item

I really liked the item. It works perfect, I got no complaints. Worth the money. Thanks you.

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What should I consider when choosing bicycle tires?

When selecting bicycle tires, consider the size, tread, width, durability, pressure, weight, and riding style. Choose a tire that fits your bike's wheels, is appropriate for the terrain you'll be riding on, is durable and puncture-resistant, can handle the recommended tire pressure, and matches your riding style.

What size bike tire do I need for my bike?

To determine the size of tire you need for your bike, you can look at the sidewall of your current wheel, which will have the tire size printed on it. The size will typically be expressed as a combination of numbers and letters, such as "700x23c" or "26x2.0". The first number refers to the diameter of the tire, which is measured in millimeters for metric sizes (e.g. 700) or inches for imperial sizes (e.g. 26). The second number refers to the width of the tire, also measured in millimeters or inches. The letter at the end indicates the type of tire (e.g. "c" for clincher)
If you're unsure about what size tires to get or have any doubts about compatibility, you can consult your bike's owner's manual or contact the manufacturer for advice.

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