A huge range of derailleur hangers to suit nearly all bikes.

Use wheels manufacturing site to tell what derailleur hanger is suitable for your bike:

http://wheelsmfg.com/products/derailleur-hangers.html

The M3000 groupset is an innovation in 9-speed technology. When 10 and 11-speed systems are dominating the market, this 9-speed component benefits from the advancements achieved by the most modern of parts. For many riders however, 9-speed is more than enough gearing for most applications.

Shimano Acera M360 7/8-Speed Rear Mech
The Shimano Acera M360 7/8-Speed Rear Mech offers a light shifting action operation and over-size pulleys for a wide gear choice. This rear mountain bike derailleur is compatible with 7- and 8-speed drivetrains.

Shimano Alivio M4000 Shadow 9 Speed Rear Mech
Alivio MTB - dedicated Mountain Biking components. Control with Confidence: Proven race technology with improved ergonomics, durability and reliability.

Shimano Deore M6000 Shadow+ 10 Speed Rear Mech
Loaded with features that have trickled down from Shimano's top-of-the-line XTR model, the Deore M6000 Shadow+ 10 Speed Rear Mech offers you pro-level performance without the pro-level price tag.

Shimano Altus M310 7/8 Speed Rear Derailleur
The Altus M310 is an affordable but high performing rear derailleur. Ideally suited to a 7 or 8-speed drivetrain, it has enough capacity to handle a double or triple crankset. With its light action design, Teflon coated bushings and efficient spring, this derailleur is perfect for leisure cycling and touring.