For MTB gearing configurations
Short or long cage
Weight: 189 g. (Short cage)
8 or 9-spd compatible
M972 9-spd top normal only,"SHIMANO SHADOW RD" : low profile design intended for more aggressive riding. Quiet : will not contact chain stay. Super low profile design carries many benefits. Because of its low profile and single tension construction, no hit to chain stay in rough riding conditions.The result is smooth and silent performance
Low profile for improved durability
Low profile design saves RD from damage in a narrow passage.
Direct routing reduces the risk of snagging.
Stronger return spring for more crisp shifting feeling
Capacity : GS 33T, SGS 45T