Shimano Ultegra ST-R8020 Shifter Only (Disc Brake) General Chainrings have 3mm offset -

Chainrings have 3mm offset - The same as Easton chainrings

Shimano PD-R9100

The result is a very fast and versatile XC profile

less than 2 microns in diameter

Shimano Ultegra ST-R8020 Shifter Only (Disc Brake) General Chainrings have 3mm offset -The SHIMANO ULTEGRA R8020 series shifters bring greater rider control in all conditions thanks to SHIMANO's category leading hydraulic disc brakes. Lighter front shift action and refined ergonomic shape sweeten the deal. Specifications Left or Right Mechanical Shifter (Choose from drop down menu) Hydraulic Disc Brake Specific Does not include any calipers, cables or fittings. Mfr Claimed Weight TBC