Shimano Dura-Ace Crankset 12-Speed FC-R92000 172.5mm 54-40T Hollowtech SRAM up to 6 hours in

up to 6 hours in GPS mode with music

No more creaking

All new brake delivering mini-Code power

Or if you prefer a fixed cleat with no float

Shimano Dura-Ace Crankset 12-Speed FC-R92000 172.5mm 54-40T Hollowtech SRAM up to 6 hours inOUTER 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