This Alcon left-hand 2-pot caliper features a 34.9 mm bore and is specified for left-side brake installations. The listing identifies the caliper by piston bore and mounting hand, intended for use where a left-side two-pot caliper with a 34.9 mm bore is required to match a vehicle’s brake hardware layout and hydraulic sizing.
Alcon Left Hand 2-pot Caliper 34.9mm Bore