Hayes Brake Caliper Dominion A4 4-Piston (74mm) - Bronze MFPN=HB-0003 Overlapping Composite Matrix handle

Overlapping Composite Matrix handle

Compatible with threaded cartridges

Orbit chain management technology keeps the drivetrain quiet and secure

spindle CrMo size 9/16" color purple weight 320g

The slick centerline and hatched intermediate tread of the Expanse transitions into minimalistic outer knobs that instill confidence regardless of road conditions

Hayes Brake Caliper Dominion A4 4-Piston (74mm) - Bronze MFPN=HB-0003 Overlapping Composite Matrix handleComplete caliper replacement for Hayes systems Includes: caliper, bleed screw + cap, and pistons (does not include pads) Model Dominion A4 Description 4 Piston Caliper Mount 74mm Color Bronze