Shimano Dura-Ace R9200 12 Speed Crank

Goes without saying Shimano has stuck to the alloy crank with hollow chainrings and 24mm steel spindle format that works so well.

OUTER RING MATERIAL Aluminum/ CFRP
CRANK AXLE MATERIAL Steel
AVERAGE WEIGHT 680g,690g,-
THREADED BB SHELL WIDTH 68/70
CRANK ARM FINISH Anodized
COMPATIBLE BB TYPE Outboard
CRANK AXLE FINISH Plated
GEAR ARMS 4
COMPATIBLE CHAIN CN-M9100
SERIES Dura-Ace
INNER RING MATERIAL Aluminum
GENERATION R9200
INNER RING FINISH Anodized
CRANK ARM LENGTH 160,165,167.5,170,172.5,175,177.5
CHAIN RING COMBINATION 50-34,52-36,54-40
OUTER RING FINISH Anodized
CRANK ARM MATERIAL Aluminum