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5mm Spindle Square Taper JIS 50mm Chainline
B1H: nickel plated chain has heavy duty structure with bushing construction
2mm Sky Blue
BB Included No Chainring BCD 110 Color Black Crank Intended Use Road Crank Intended Use Tri Crank Length (mm) 172
Shimano Ultegra FC-R8100 Crankset - 172.5mm 12-Speed 52/36t Hollowtech II Spindle Interface BLK MPFN-BAA0074K 5mm Spindle Square Taper JISShimano Ultegra FC R8100 Crankset 172. 5mm 12 Speed 52 36t Hollowtech II Spindle Interface Black. An integral part of the Shimano Ultegra 12 speed road lineup the FC R8100 crankset builds upon Shimanos legendary front shifting and transmission efficiency. With new refinements for seamless 12 speed shifting the Ultegra crank is now offered in a wide variety of lengths bringing performance and improved fit for smaller riders triathletes and riders with
