The new Ultegra FC-6700-G crankset features the innovative design of hollow chainrings like the Dura-Ace FC-7900 crankset but with a much more affordable price tag. The resulting triangle shape of the chainring makes it incredibly stiff, improving power transfer and shift performance. The spacing between chainrings is a bit wider eliminating possible chain rub when in the small/small gear configuration. Hollowtech II arms are light and super stiff.
The FC-6700-G is available with Standard 53/39T (6700; 130 BCD) or Compact 50/34T (6750; 110 BCD) chainrings. 710 grams (Standard 53/39T; 172.5mm). The only difference between this and the standard 6700 model is a Grey finish.
Note: The Ultegra SM-BB6700 Bottom Bracket Cups are sold separately.
A guide to understanding and calculating bicycle gear inches.