Quick Summary
The Enmja RD-TZ31A is a direct mount rear derailleur for compatible 6-speed and 7-speed bicycle drivetrains. It is made for bikes that use the direct mount or bolt-on style, not hanger or hook mount setups.
The main buying check is fit. Confirm your drivetrain speed and mounting style before choosing an offer, since the wrong mount type will not install correctly.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Model | RD-TZ31A, which helps identify the exact replacement. |
| Product type | Rear derailleur for a bicycle drivetrain. |
| Speed compatibility | 6-speed and 7-speed drivetrains, so the bike setup should match this range. |
| Mounting style | Direct mount / bolt-on version for a compatible threaded derailleur hanger or frame mounting point. |
| Included adjustment points | H/L limit screws and cable tension adjustment are listed, which matters for setup and fine-tuning. |
| Construction | Aluminum alloy and steel components with PA nylon guide pulleys. |
Compatibility, Size and Fit
This derailleur is intended for bikes that use a direct mount or bolt-on rear derailleur setup. It is not compatible with hanger or hook mount systems.
Before buying, check the bike’s rear mounting style and confirm that the drivetrain is 6-speed or 7-speed. Matching those two details is the key step in avoiding the wrong part.
What Else You May Need
A compatible bike frame or hanger mounting point is required for installation. If you are replacing an existing derailleur, compare the mounting style and speed setup on the bike before ordering.
Before You Decide
Confirm the RD-TZ31A model, the 6-speed or 7-speed drivetrain, and the direct mount or bolt-on style before choosing an offer. If your bike uses a hanger or hook mount, this part is not the right fit.
Reviews
There are no reviews yet.