Shimano Ultegra SL 6604 10-speed Triple HollowTech II chainset

Ultegra SL HollowTech II chainset offers a fine balance of light weight and rigidity with incredible shifting performance

• Ultegra SL 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 the frame) enabling the use of larger bearings and an increased axle diameter
• Their is also the benefit of easier installation , adjustment and maintenance
• Lightweight and rigid steel bottom bracket axle
• SG-X aluminium anodized chainrings available in 53-39T / 52-39T (FC6600 double), 52-39-30T (FC6603 triple) and 50-34T (FC6650 compact)
• Available in 165 mm, 170 mm, 172.5 mm and 175 mm
• Aluminium chainring bolts
• Weight 893 g (53 / 39T, 170 mm including bottom bracket)
• You need to purchase the Hollowtech II bottom bracket cups to go with this item.