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Description

A lighter yet stiffer bottom bracket spindle and the HollowTech II crank make this Ultegra SL chainset a top contender in the performance range. Chamfered chainrings for optimal gear changes, swift, smooth and precise. The bottom bracket bearings can be spaced out a little further allowing for an increased axle diameter and larger bearings. This makes for a stiffer axle and less flex, more power transference. Note the bottom bracket does not come with the chainset and needs to be ordered seperately.

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• Features
• 170 mm including bottom bracket
• (53 / 39T
• SG-X aluminium anodized chainrings with aluminium chainring bolts
• Weight 797g