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Shimano Ultegra SL FC-6604 10 Spd Triple Chainset

Lightweight HollowTech II Ultegra 10 speed triple Chainset. The innovative HollowTech forged and anodised aluminium crank arms utilises a hollow design that minimises flex and keeps the weight low. HollowTech II allows the bottom bracket bearings to be spaced wider apart (outboard from the frame), enabling the use of larger bearings and an increased axle diameter. Precision engineering and highly advanced features make the Ultegra chainset the choice for road racing's elite riders

  • HollowTech II 10-speed Ultegra triple chainset offers the optimum balance of lightweight and rigidity
  • Integrated bottom bracket design gives wider bearing placement plus larger axle for increased stiffness and efficiency
  • Minimal bearing interface gives superbly smooth rolling
  • Lightweight anodised SG-X aluminium chainrings for smooth and precise shifting