Quick Summary
The SRAM MTB X3 rear derailleur is a black, long cage rear derailleur for 7-8 speed setups. It is described as a rear derailleur for mountain bikes, and the long cage format is an important detail for buyers matching drivetrain setup and chain capacity.
The outer cage is steel. If you are choosing between similar derailleur options, check the speed range, cage length and colour match before selecting an offer.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Rear derailleur for MTB use. |
| Speed range | 7-8 speed. Match this to the drivetrain on the bike. |
| Cage size | Long cage. Cage length is a key check for drivetrain compatibility. |
| Colour | Black. |
| Outer cage | Steel outer cage. |
What to Compare Before Buying
- Speed range: This model is for 7-8 speed systems, so compare it with the speed setup on the bike.
- Cage length: The long cage is a main distinguishing feature, so check that this is the version you need.
- Finish: The derailleur is black, which matters if you are matching an existing bike build.
- Component style: As a rear derailleur, it should be checked against the bike’s current drivetrain arrangement before purchase.
Before You Decide
Confirm the 7-8 speed range, long cage format and black finish before choosing an offer. If you are replacing an existing derailleur, make sure the bike’s drivetrain matches this version.
