







🚴♂️ Shift Smooth, Ride Proud – Upgrade Your Gear Game!
The THALOUS RD-TZ31-A Rear Derailleur is a high-quality aluminum 6/7 speed component designed for direct braze-on mounting. It delivers smooth, silent shifting with durable construction, compatible across multiple bike types including MTB, road, and city bikes, ensuring reliable performance for serious cyclists.














| ASIN | B0BQDS6ZRF |
| Best Sellers Rank | #362,841 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #332 in Rear Bike Derailleurs |
| Brand | THALOUS |
| Brand Name | THALOUS |
| Case Material Type | Aluminum |
| Color | Direct mount |
| Customer Reviews | 4.4 out of 5 stars 161 Reviews |
| Included Components | 1*rear derailleur |
| Item Type Name | bicycle rear derailleur |
| Manufacturer | THALOUS |
| Material | Aluminum |
| Material Type | Aluminum |
| Mount Type | Braze-On Mount |
| Mounting Type | Braze-On Mount |
| Unit Count | 1.0 Count |
| Warranty Description | False |
D**L
OEM quality
This was an exact manufacturer and model replacement of the derailleur that was originally installed on my mountain bike so the quality and performance is exactly the way it was originally. I was able to make the minor adjustments to match my gear shift ratios without any issues.
B**B
item as discribed
easy to use perfect fit
A**R
Just what I needed
Found a new bike but it is a girls but that ok I’m 68 and I don’t have to throw my leg over the back and I look good riding it LoL
M**1
Buen desviador de cambios
Es tal cual se describe en la publicación. Su cambio no es complicado y tampoco requiere de herramientas especializadas. Con este repuesto pude reparar mi bicicleta sin problemas a un costo módico.
C**E
Perfect replacement for huffy bike.
Simple install and fixed the broke. Derailer that was on the bike. Easy to adjust.
T**.
Mountain bike derailer
Came in on time and proper derailers. I would buy it again.
K**W
It works
This has to be the most cheaply made Shimano derailleur I’ve ever seen. Yes it does work, yes it’s easy to adjust. That’s about it. It is flimsy and Noisy! Great for a cheap bike your trying to get rid of
J**N
Bike repair part
Did a reverse picture search got exactly what I needed
Trustpilot
3 weeks ago
1 month ago