Hayes Dominion A4 SFL Brake Kit

All set for fast and fun trail riding adventures, this MTB hydraulic disc brake features the brand’s Small Finger Lever (SFL) design for a secure and reliable braking feel. Its intuitive lever design makes it a perfect choice for riders with smaller hands or those who prefer a smaller lever for a solid pull as you weave your way from trail to trail. Engineered for precision, this version also comes equipped with a four-piston caliper for excellent control and consistency, whatever the terrain conditions. Another highlight is this model’s range of technologies that include tool-free reach adjustment. As a result, you’ll benefit from the simplicity of being able to fine-tune the distance between your handlebar and the brake lever to match your riding style, personal preferences as well as the terrain.

MTB Disc Brake with Four-Piston Caliper

Dominion’s master cylinder is factory tuned for the shortest dead stroke possible and a crisp bite point. The Dominion A4 caliper utilises four pistons in the most structurally rigid design possible. It features a cold-forged caliper and KingPin structural pad retention bolt that increases stiffness.

Dual Port Bleed System and DOT 5.1 Fluid 

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 ultimate performance across all temperatures and easy maintenance.

Dominion A4 also features the proprietary QuickBite² system for fast and consistent burnish, when coupled with the D-Series rotor (available separately) to manage the heat with less braking noise.

The Hayes Dominion A4 SFL Brake Kit is a perfect choice of upgrade for riders with smaller hands who want to enjoy reliable braking performance on the trails. 

Manufacturer’s Part Numbers:

95-36115-K053 Black/Grey One Size Front
95-36115-K054 Black/Grey One Size Rear