Ultegra FC-R8100

The Shimano Ultegra FC‑R8100 crankset delivers an ideal balance of stiffness, strength, weight, and efficiency for modern 12‑speed road drivetrains. With HOLLOWTECH II arms and a HOLLOWGLIDE outer chainring, it maximizes power transfer while ensuring fast, precise front shifting. Its 50‑34T compact gearing and 24 mm spindle make it a versatile, high‑performance choice for any road setup.

• Optimal stiffness‑to‑weight balance for efficient power transfer

• HOLLOWGLIDE chainring construction for lighter weight and quicker, more precise front shifting

• HOLLOWTECH II crank arm technology

• 50‑34T chainrings (compact)

• 170 mm crank length

• 110 BCD

• 24 mm spindle (Hollowtech II)

• Designed for 12‑speed road drivetrains

• Chainline: 43.5 mm

• BB not included

• Vendor Item #: IFCR8100CX04

Ideal for road cyclists seeking a lightweight, stiff, and reliable 12‑speed crankset that delivers smooth shifting and excellent power transfer.