1x9 speed. Max cog 34-38T, capacity 27T. Super Short cage is an ideal fit for kids bikes with 20" wheels. With adjustable clutch for increased chain tension. Compatible with microSHIFT Advent MTB (SL-M9195, SL-9295, SL-8195, SL-819) gear shifters and Road (SB-M090) shift brake levers.
