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Shimano Ultegra Hollowtech II FC6600 Chainset

The Ultegra HollowTech II chainset offers a fine balance of light weight and rigidity with incredible shifting performance. HollowTech II allows the bottom bracket bearings to be spaced wider apart (outboard theframe) enabling the use of larger bearings and an increased axle diameter. There is also the benefit of easier installation , adjustment and maintenance

  • SG-X aluminium anodized chainrings available in 53-39T / 52-39T (FC-6600 double), 52-39-30T (FC-6603 triple)
  • Available in 165 mm (double), 170 mm, 172.5 mm, 175 mm
  • Weight 833 g (53 / 39T, 170 mm including bottom bracket)