ABSOLUTEBLACK OVAL 110mm 52T 5B 2X BLACK TANDEM *Important: Will not work with

*Important: Will not work with crank spindles less than 104mm

SHIMANO Equivalent BL-M421

Required bar outer diameter of 23

city/touring

Compatible with 26-34T round chainrings - 32T max oval

ABSOLUTEBLACK OVAL 110mm 52T 5B 2X BLACK TANDEM *Important: Will not work withOne of a kind special oval shape that helps you climb easier and faster Allows use of an oval small ring with a round large ring, or 2 oval rings Over 15% stiffer than Rotor Qrings due to thicker, 5mm construction Superb quality with great 6 point shifting design Reduces stress on knees and helps to maintain your legs fresher for longer Provides excellent weight to strength ratio