SHIMANO FC-M311-L Crankset for 7/8 Rear Speeds w/ chain guard fitness tracking for divers It offers variable speed control

It offers variable speed control and a unique pulse action that reduces heat generation while providing more effective mixing and cell disruption

Heat Exchanger: Cupro-nickel

while answering all your queries

Don't let power outages or remote locations hinder your productivity and convenience

SHIMANO FC-M311-L Crankset for 7/8 Rear Speeds w/ chain guard fitness tracking for divers It offers variable speed controlOUTER RING MATERIAL Steel AXLE LENGTH OF BB LL123 THREADED BB SHELL WIDTH 68,73 CRANK ARM FINISH Painted COMPATIBLE BB TYPE Square Taper MIDDLE RING MATERIAL Steel GEAR ARMS 4 COMPATIBLE CHAIN HG 8 7 speed SERIES Altus INNER RING MATERIAL Steel GENERATION M311 CRANK ARM LENGTH 170,175 CHAIN RING COMBINATION 42 32 22,48 38 28 CRANK ARM MATERIAL Aluminum