Shimano 105 FC-R7100 Crankset Crankarm Length:160mm utilizing a layer of compound

utilizing a layer of compound mixed with aramid that covers the inner layer of the tire

Made of eco-friendly biodegradable ingredients

and 250g lighter than S5

combining great value with trickle-down technology from Shimano's top-tier groups

Shimano 105 FC-R7100 Crankset Crankarm Length:160mm utilizing a layer of compoundOUTER RING MATERIAL Aluminum GFRP CRANK AXLE MATERIAL Steel AVERAGE WEIGHT 754g THREADED BB SHELL WIDTH 68 70 CRANK ARM FINISH Anodized COMPATIBLE BB TYPE Outboard CRANK AXLE FINISH Plated GEAR ARMS 4 COMPATIBLE CHAIN HG 12 speed SERIES 105 INNER RING MATERIAL Aluminum GENERATION 105 R7100,R7100 INNER RING FINISH Anodized CRANK ARM LENGTH 160,165,170,172. 5,175 CHAIN RING COMBINATION 50 34,52 36 OUTER RING FINISH Anodized CRANK ARM MATERIAL Aluminum