The Shimano Ultegra R8100 left crank arm is the perfect choice for road cyclists seeking exceptional performance. Thanks to the Hollowtech II generation, this crank arm reduces weight without compromising strength, ensuring optimal power transfer and fast, precise front shifting. Available in various lengths, it integrates perfectly with the Ultegra R8100 12-speed crankset of the same range. This high-quality crank arm boosts performance with every pedal stroke!

The Shimano Ultegra R8100 left crank arm is compatible with the same Ultegra R8100 12-speed crankset. Available in 4 lengths: 165, 170, 172.5, and 175 mm, pair it with the right crank arm and chainrings to form a complete crankset. It reduces weight while maintaining strength for better power transfer and faster, more precise front shifting.

Features:

• Use: Road
• Lengths: 165, 170, 172.5, and 175 mm
• Speeds: 12
• Hollowtech II generation
• Reduces weight and maintains aerodynamic strength for better power transfer and faster, more precise front shifting