microSHIFT RD-M21 Rear Derailleur 6 / 7 Speed - Short Cage

Our line of mountain and trekking derailleurs starts with M21, but that doesn’t mean it’s entry level. Using the same kinematics as our more expensive derailleurs and innovative construction technics, M21 delivers responsive performance in an attainable package.

Ideal for cross country and general off-road trail riding, this rear mech provides fast and smooth gear shifting performance in all conditions.

• Robust attachment body improves durability and shifting response
• Guide Pulley: Engineering Composite with Steel Bushing
• Tension Pulley: Engineering Composite with Steel Bushing
• Bracket Body: Resin / Black
• Mount Type: Reverse Bracket Type
• Speed: 6/7 
• Cage length:Short Cage
• Max tooth sprocket: 30T
• Min tooth sprocket: 13T