SHIMANO FC-6800 Ultegra 11 Speed Bicycle Chainrings

Upgrade your Ultegra FC‑R8000 crankset with a high‑rigidity chainring engineered for powerful pedaling efficiency and exceptionally smooth front shifting.

Best for

• Road cyclists running a 39/53T standard chainring setup
• Riders seeking precise, fast front shifting on an 11‑speed drivetrain
• Maintaining or optimizing Shimano Ultegra R8000 performance

Not ideal for

• Compact cranksets (34/50T)
• Non‑Shimano 110 mm BCD crank arms

What this product does

This chainring replaces the 39T inner ring on a Shimano Ultegra FC‑R8000 crankset, using Hollowglide technology to reduce weight, increase stiffness, and deliver quicker, more precise front shifting under load.

Compatibility

• Shimano Ultegra FC‑R8000 (11‑speed)
• Standard 39/53T chainring configurations
• 110 mm BCD, 4‑bolt Shimano asymmetric pattern

Benefits

• Hollowglide hollow‑core structure cuts weight while boosting rigidity
• Improved power transfer for more efficient pedaling
• Faster, smoother front shifting thanks to optimized tooth profiling
• Lightweight 4‑bolt design enhances drivetrain stiffness

Technical specs

• Teeth: 39T
• Speed: 11‑Speed
• BCD: 110 mm
• Bolt Pattern: 4‑Bolt (Shimano asymmetric)
• Material: Aluminum
• Color: Silver/Black (Ultegra finish)