







⚙️ Shift into the future of smooth rides — don’t get left behind!
The Rear Derailleur RD-TY21B is a high-performance, hanger mount derailleur compatible with 6 and 7-speed bikes. Crafted from durable aluminum alloy, it ensures stable and precise shifting across mountain, commuter, cruiser, and folding bikes. Designed for easy installation and trusted by riders for its reliability, this derailleur upgrades your bike’s drivetrain for a safer, smoother ride.




| ASIN | B0CXPJDS3B |
| Best Sellers Rank | #110,560 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #52 in Rear Bike Derailleurs |
| Brand Name | Relwears |
| Customer Reviews | 4.3 4.3 out of 5 stars (43) |
| Date First Available | March 11, 2024 |
| Included Components | NO |
| Item Package Dimensions L x W x H | 5.59 x 5.59 x 2.44 inches |
| Manufacturer | Relwears |
| Model Name | TY21B Rear Derailleur |
| Package Weight | 0.33 Kilograms |
| Size | 6/7 Speed |
| Warranty Description | 1 |
E**N
exact fit for the bike
Was a direct fit for my grandsons bike which he and his sister have been riding since he installed it with no problems. works better then the one that came on the bike
A**S
Good product
Good product but on work on old stily frames like side doesn't not fit on new model mountain bikes when the braket its down it only mount on the side
D**K
Works ok.
Works ok. I've seen better and seen worse.
J**T
Buy it!
I got an estimate of $100 to fix this part at a bike shop. I bought this and replaced it in less than an hour. I’m so happy!!!
M**N
Reliable and Affordable Rear Derailleur for Smooth Shifting
I recently installed this rear derailleur on my mountain bike, and it has made a noticeable difference in my riding experience. The derailleur is made of high-quality aluminum, ensuring durability and a long service life. Despite its sturdy construction, it’s surprisingly lightweight, which is a great bonus for performance cycling. The installation process was straightforward and hassle-free. The hanger mount design fit perfectly on my bike, and the instructions were clear and easy to follow. Within no time, I had it set up and ready to go. Just be sure to check your bike’s mount type before purchasing to avoid any compatibility issues. One of the standout features is the smooth shifting performance. This derailleur ensures precise and reliable gear changes, which is crucial for maintaining a stable and safe ride. Whether I'm tackling steep inclines or cruising on flat terrain, the shifting is consistently smooth and responsive. It’s especially beneficial during intense rides where quick and accurate gear changes are necessary. I also appreciate the wide application of this derailleur. It’s suitable for various types of bikes, including mountain bikes, road bikes, and city bikes. This versatility makes it a valuable addition to any cyclist’s toolkit, whether you're an avid mountain biker or someone who enjoys casual city rides. Overall, this rear derailleur offers excellent performance at a very affordable price. It’s durable, easy to install, and provides smooth shifting for a safer and more enjoyable riding experience. If you're looking to upgrade your bike’s derailleur without breaking the bank, this is a fantastic option.
T**D
Quality Derailleur
This is a well made and functional derailleur. Installation was straightforward and simple and the upgrade over the old worn out derailleur that it replaced is a welcome addition to an old bike we've been tinkering with. A good value at the price point.
T**S
It works well.
It's easy to install.
W**S
Lowest end Shimano. Buy Upgraded versions
Low end product, look for higher end derailleur. TX800 is better and only a few dollars more. Just make sure to get hanger brackets if necessary. Two of mine broke.
H**G
passt ..
ترست بايلوت
منذ أسبوعين
منذ أسبوعين