Hayes Dominion A4

Brake Caliper

Specifications

Manufacturer: Hayes
Name: Dominion A4
Series: Dominion
Brake Type: Hydraulic Disc
Disc Mount Type: Post Mount
Fluid Type: Dot
Max Rotor Size (mm): 220
Weight (g): 310

Included Components

shifter
Hayes Dominion A4 Lever

Image	Component	Part	Quantity
	shifter	Hayes Dominion A4 Lever	1

Compatibility

Hayes Dominion A4 is a Hayes brake caliper. Everything listed below was matched on a specification we hold for both parts: the interface each pairing actually depends on, such as freehub body, speed count, actuation or mounting standard. Where we could not verify that interface, the part is left out rather than assumed to fit.

Rotors within this caliper size limit20

Mechanically compatible

FSA

AFTERBURNER rotor

This caliper is rated to 220mm and takes the 160mm rotor

Mechanically compatible

LTWOO

Brake Rotor (RT-R00-140)

This caliper is rated to 220mm and takes the 140mm rotor

Mechanically compatible

LTWOO

Brake Rotor (RT-R00-160)

This caliper is rated to 220mm and takes the 160mm rotor

CENTER LOCK DISC BRAKE ROTOR ICE TECHNOLOGIES (SM-RT800)

Mechanically compatible

Shimano

CENTER LOCK DISC BRAKE ROTOR ICE TECHNOLOGIES (SM-RT800)

This caliper is rated to 220mm and takes the 140/160mm rotor

Mechanically compatible

SRAM

CenterLine Rotor 6 Bolt

This caliper is rated to 220mm and takes the 140/160/180/200/203/220mm rotor

Mechanically compatible

SRAM

CenterLine Rotor Centerlock

This caliper is rated to 220mm and takes the 140/160/180/200/220mm rotor

Mechanically compatible

SRAM

CenterLine X Rotor 6 Bolt

This caliper is rated to 220mm and takes the 140/160/180mm rotor

Mechanically compatible

SRAM

CenterLine X Rotor Centerlock

This caliper is rated to 220mm and takes the 140/160/180mm rotor

Mechanically compatible

SRAM

CenterLine XR Rotor 6 Bolt

This caliper is rated to 220mm and takes the 140/160mm rotor

Mechanically compatible

SRAM

CenterLine XR Rotor Centerlock

This caliper is rated to 220mm and takes the 140/160mm rotor

Mechanically compatible

Hayes

D-Series Rotor

This caliper is rated to 220mm and takes the 160/180/203/220mm rotor

DISC BRAKE ROTOR ICE TECHNOLOGIES FREEZA (RT-CL900)

Mechanically compatible

Shimano

DISC BRAKE ROTOR ICE TECHNOLOGIES FREEZA (RT-CL900)

This caliper is rated to 220mm and takes the 140/160/180/203mm rotor

Mechanically compatible

Hope

FIXED ROTOR

This caliper is rated to 220mm and takes the 120/140/160/180/183/185/200/203/205/220mm rotor

Mechanically compatible

Galfer

Floating Rotor 180mm 6-Bolt

This caliper is rated to 220mm and takes the 180mm rotor

Mechanically compatible

Galfer

Floating Rotor 203mm 6-Bolt

This caliper is rated to 220mm and takes the 203mm rotor

Mechanically compatible

Hope

FLOATING ROTOR 6 Bolt

This caliper is rated to 220mm and takes the 140/160/180/200/203/220mm rotor

Mechanically compatible

Hope

FLOATING ROTOR Centerlock

This caliper is rated to 220mm and takes the 140/160/180/200/203/220mm rotor

Mechanically compatible

SRAM

G2 CleanSweep Rotor

This caliper is rated to 220mm and takes the 140/160/180/200mm rotor

Mechanically compatible

SRAM

G3 CleanSweep Rotor

This caliper is rated to 220mm and takes the 203mm rotor

Mechanically compatible

SRAM

HS2 Rotor 6 Bolt

This caliper is rated to 220mm and takes the 160/180/200/220mm rotor

Frames with a matching brake mount20

Mechanically compatible

Wilier

101X

Both use a post mount disc brake

Mechanically compatible

Wilier

110FX

Both use a post mount disc brake

2019 new all mountain suspension enduro frame

Mechanically compatible

LightCarbon

2019 new all mountain suspension enduro frame

Both use a post mount disc brake

29er Carbon Frame Full Suspension XC Frame

Mechanically compatible

LightCarbon

29er Carbon Frame Full Suspension XC Frame

Both use a post mount disc brake

29er Light XC Full Suspension Carbon Frame Internal Cable Routing

Mechanically compatible

LightCarbon

29er Light XC Full Suspension Carbon Frame Internal Cable Routing

Both use a post mount disc brake

Mechanically compatible

Santa Cruz

5010 Frame 2024

Both use a post mount disc brake

Mechanically compatible

Santa Cruz

5010 Frame 2025

Both use a post mount disc brake

Mechanically compatible

Wilier

503X Race

Both use a post mount disc brake

Mechanically compatible

Whyte

629 2024

Both use a post mount disc brake

Mechanically compatible

Whyte

905 2023

Both use a post mount disc brake

Mechanically compatible

Whyte

909 X 2023

Both use a post mount disc brake

Mechanically compatible

LightCarbon

Affordable Chinese Carbon MTB Frame

Both use a post mount disc brake

Mechanically compatible

LightCarbon

All New Enduro Carbon Frame LCFS947

Both use a post mount disc brake

Mechanically compatible

Gloria

All Terrain

Both use a post mount disc brake

Mechanically compatible

Orbea

Alma H

Both use a post mount disc brake

Mechanically compatible

Orbea

Alma M

Both use a post mount disc brake

Mechanically compatible

Yeti

ARC Frame 2026

Both use a post mount disc brake

Mechanically compatible

Yeti

ASR Frame 2026

Both use a post mount disc brake

Mechanically compatible

Avalanche

Both use a post mount disc brake

Mechanically compatible

Cannondale

Bad Habit Carbon

Both use a post mount disc brake

Frequently Asked Questions

What fits Hayes Dominion A4?

On this page we list rotors within this caliper size limit, frames with a matching brake mount. Each listing was matched on a specification we hold for both parts; anything we could not verify is omitted rather than assumed to fit.

Is Hayes Dominion A4 compatible with rim brakes?

No. Hayes Dominion A4 is built for hydraulic disc systems. The mounting standards and wheel/frame interfaces for disc brakes are different and cannot be mixed.