microSHIFT
microSHIFT M21 Rear Derailleur - 6,7 Speed, Short Cage, Dropout Claw Hanger, Black
MPN: RD-M21SA · UPC: 4710495436371
$12.99
In Stock — Ships in 4-9 Days
📦 Ships from Warehouse — 4-9 Business Days
Select Option: microSHIFT M21 Rear Derailleur - 6,7 Speed, Short Cage, Dropout Claw Hanger, Black
🏪 Free pickup: 26 Essex St (Rear), Andover MA · 978-270-4895
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M21 rear derailleurs are designed to work with 6- and 7-speed Shimano road and mountain shifters. Enjoy the wide variety of bikes you can get going again with M21 rear derailleurs.
- ✓ Robust composite and steel construction
- ✓ Compatible with Shimano 6- and 7-speed mountain and road systems
| Largest Cog | 30 |
| Rear Der/Shifter Compatibility | Shimano Mountain |
| Rear Derailleur Mount Type | Dropout Claw Hanger |
| Drivetrain Speeds | 7 |
| Chain Wrap Capacity (teeth) | 39 |
| Cage Length | Short |
| Color | Black |
Cycling Apparel Size Guide
| Size | Chest | Waist |
|---|---|---|
| S | 34" – 36" | 28" – 30" |
| M | 37" – 39" | 31" – 33" |
| L | 40" – 42" | 34" – 36" |
| XL | 43" – 45" | 37" – 39" |
| XXL | 46" – 48" | 40" – 42" |
💡 Cycling apparel runs tighter than casual wear for aerodynamic fit. If between sizes, size up for comfort or down for race fit.
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$12.99
In Stock — Ships in 4-9 Days