Shimano SLX RD-M7100 Shadow+ Long Cage

This rear derailleur is only approved by the manufacturer for 1x 12-speed drives and cassettes with 10-51 teeth! 

Technical specifications: 

Material: aluminum, steel 
Version: 12-speed , long cage 
Compatibility front drive: 1x 
Compatibility Shifter: Shimano SLX SL-M7100 12-speed 
Total capacity: 41 teeth 
Max. Difference in front: - (only recommended for 1-way) 
Max. Largest sprocket: 51 teeth 
minute Largest sprocket: 51 teeth 
Max. smallest sprocket: 10 teeth 
minute smallest sprocket: 10 teeth 
Color: black, gray / blue