Brand: microSHIFT
Name: microSHIFT M21 Rear Derailleur - 67 Speed Short Cage Black
Model Number: RD-M21S
UPC: 657993356869
Color: Black
Speed compatibility: 6, 7
Cable Pull Ratio: 1.7 - Shimano standard, SRAM 2:1
Cage Length: Short
Actuation: Cable
Clutch: Unknown
Total Capacity: 39
Top Gear Max: 34
Weight: 303 grams
Chainring Differential: 39
Round/Oval: Round