Quick Summary
The SHIMANO RD-A070 is a road direct mount rear derailleur in black. It is specified with an 11T minimum top sprocket, a 28T maximum low sprocket and a total capacity of 33T, with SMARTCAGE (11/13T) noted as part of the model name.
For a replacement or upgrade, the main checks are cassette range, total capacity and whether your frame and drivetrain are set up for the direct mount format.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | SHIMANO |
| Model | RD-A070 |
| Product type | Road direct mount rear derailleur |
| Colour | Black |
| Minimum top sprocket | 11T minimum top sprocket, which affects cassette compatibility. |
| Maximum low sprocket | 28T maximum low sprocket, which affects the sprocket range it is intended to work with. |
| Total capacity | 33T total capacity. |
| SMARTCAGE | SMARTCAGE (11/13T) is stated as part of the model name. |
What to Compare Before Buying
- Mounting format: This is a direct mount rear derailleur, so check that your frame and drivetrain are set up for that format.
- Cassette range: Compare the stated 11T minimum top sprocket and 28T maximum low sprocket with the sprockets on your bike.
- Total capacity: The stated 33T capacity should be checked against the chain and sprocket combination you plan to use.
Before You Decide
Confirm the direct mount format, the 11T to 28T sprocket range and the 33T total capacity before choosing this derailleur. The black finish and RD-A070 model name help identify the exact part, but fit depends on the drivetrain setup.
