Hayes Dominion A4 Small Finger Lever Disc Brake (Fits Front or Rear) 120023-01 efficient pedaling is key

efficient pedaling is key

The clad steel / alloy / steel rotor construction allows heat generated from braking to radiate quickly through the aluminium core achieving surface temperature drops of around 50 deg C

It’s 20mm of adjustable

only 3 or 4 balls make contact during the load

keeping you comfortable even on the longest days in the saddle

Hayes Dominion A4 Small Finger Lever Disc Brake (Fits Front or Rear) 120023-01 efficient pedaling is keyDominion's master cylinder is factory tuned for the shortest dead stroke possible and a crisp bite point. The Dominion A4 caliper utilizes four pistons in the most structurally rigid design possible. It features a cold forged caliper and KingPin structural pad retention bolt that increases stiffness. With a motorsports inspired Two Stroke dual port bleed system, industry leading DOT 5. 1 fluid and Kevlar hose, the hydraulic system is engineered for