The original Shimano Ultegra chainring, 30 teeth, 92 mm bolt circle for the Shimano Ultegra FC6703 triple crankset in glossy grey, 10x3-speed, image for illustration purposes only
The original Shimano Ultegra chainring, 39 teeth, 130 mm bolt pattern for the Shimano Ultegra FC6703 triple crankset in glossy grey, 3x10-speed.