Hayes Disc Brakes | Dominion A4 Brake - 100cm / Regular / Stealth Black / Grey

Hayes Disc Brakes | Dominion A4 Brake - 100cm / Regular / Bronze

$249.99

Shipping calculated at checkout.

In stock, ready to ship
Inventory on the way

Need help choosing our brakes? Try our Brake-Aid brake builder

[{"id":39685365170221,"title":"100cm \/ Regular \/ Stealth Black \/ Grey","option1":"100cm","option2":"Regular","option3":"Stealth Black \/ Grey","sku":"95-36115-K003","requires_shipping":true,"taxable":true,"featured_image":{"id":28770805841965,"product_id":4542813995053,"position":1,"created_at":"2021-09-02T13:41:22-05:00","updated_at":"2021-09-02T13:41:23-05:00","alt":"Hayes Disc Brakes | Dominion A4 Brake - 100cm \/ Regular \/ Stealth Black \/ Grey","width":1800,"height":1800,"src":"\/\/hayesbicycle.com\/cdn\/shop\/products\/95-36115-K103_K104-_6.jpg?v=1630608083","variant_ids":[39685365170221,39685382111277]},"available":true,"name":"Dominion A4 Brake - 100cm \/ Regular \/ Stealth Black \/ Grey","public_title":"100cm \/ Regular \/ Stealth Black \/ Grey","options":["100cm","Regular","Stealth Black \/ Grey"],"price":24999,"weight":320,"compare_at_price":24999,"inventory_management":"shopify","barcode":"847863028778","featured_media":{"alt":"Hayes Disc Brakes | Dominion A4 Brake - 100cm \/ Regular \/ Stealth Black \/ Grey","id":21118271422509,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1800,"width":1800,"src":"\/\/hayesbicycle.com\/cdn\/shop\/products\/95-36115-K103_K104-_6.jpg?v=1630608083"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":32139583586349,"title":"100cm \/ Regular \/ Bronze","option1":"100cm","option2":"Regular","option3":"Bronze","sku":"95-36115-K001","requires_shipping":true,"taxable":true,"featured_image":{"id":15186542133293,"product_id":4542813995053,"position":2,"created_at":"2020-03-09T17:15:21-05:00","updated_at":"2020-03-09T17:15:21-05:00","alt":"Hayes Disc Brakes | Dominion A4 Brake - 100cm \/ Regular \/ Bronze","width":1800,"height":1800,"src":"\/\/hayesbicycle.com\/cdn\/shop\/products\/95-36115-K001.jpg?v=1583792121","variant_ids":[32139583586349,32139583651885]},"available":true,"name":"Dominion A4 Brake - 100cm \/ Regular \/ Bronze","public_title":"100cm \/ Regular \/ Bronze","options":["100cm","Regular","Bronze"],"price":24999,"weight":320,"compare_at_price":24999,"inventory_management":"shopify","barcode":"","featured_media":{"alt":"Hayes Disc Brakes | Dominion A4 Brake - 100cm \/ Regular \/ Bronze","id":7357367681069,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1800,"width":1800,"src":"\/\/hayesbicycle.com\/cdn\/shop\/products\/95-36115-K001.jpg?v=1583792121"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":39685382111277,"title":"180cm \/ Regular \/ Stealth Black \/ Grey","option1":"180cm","option2":"Regular","option3":"Stealth Black \/ Grey","sku":"95-36115-K004","requires_shipping":true,"taxable":true,"featured_image":{"id":28770805841965,"product_id":4542813995053,"position":1,"created_at":"2021-09-02T13:41:22-05:00","updated_at":"2021-09-02T13:41:23-05:00","alt":"Hayes Disc Brakes | Dominion A4 Brake - 100cm \/ Regular \/ Stealth Black \/ Grey","width":1800,"height":1800,"src":"\/\/hayesbicycle.com\/cdn\/shop\/products\/95-36115-K103_K104-_6.jpg?v=1630608083","variant_ids":[39685365170221,39685382111277]},"available":true,"name":"Dominion A4 Brake - 180cm \/ Regular \/ Stealth Black \/ Grey","public_title":"180cm \/ Regular \/ Stealth Black \/ Grey","options":["180cm","Regular","Stealth Black \/ Grey"],"price":24999,"weight":320,"compare_at_price":24999,"inventory_management":"shopify","barcode":"847863028785","featured_media":{"alt":"Hayes Disc Brakes | Dominion A4 Brake - 100cm \/ Regular \/ Stealth Black \/ Grey","id":21118271422509,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1800,"width":1800,"src":"\/\/hayesbicycle.com\/cdn\/shop\/products\/95-36115-K103_K104-_6.jpg?v=1630608083"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":32139583651885,"title":"180cm \/ Regular \/ Bronze","option1":"180cm","option2":"Regular","option3":"Bronze","sku":"95-36115-K002","requires_shipping":true,"taxable":true,"featured_image":{"id":15186542133293,"product_id":4542813995053,"position":2,"created_at":"2020-03-09T17:15:21-05:00","updated_at":"2020-03-09T17:15:21-05:00","alt":"Hayes Disc Brakes | Dominion A4 Brake - 100cm \/ Regular \/ Bronze","width":1800,"height":1800,"src":"\/\/hayesbicycle.com\/cdn\/shop\/products\/95-36115-K001.jpg?v=1583792121","variant_ids":[32139583586349,32139583651885]},"available":true,"name":"Dominion A4 Brake - 180cm \/ Regular \/ Bronze","public_title":"180cm \/ Regular \/ Bronze","options":["180cm","Regular","Bronze"],"price":24999,"weight":320,"compare_at_price":24999,"inventory_management":"shopify","barcode":"","featured_media":{"alt":"Hayes Disc Brakes | Dominion A4 Brake - 100cm \/ Regular \/ Bronze","id":7357367681069,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1800,"width":1800,"src":"\/\/hayesbicycle.com\/cdn\/shop\/products\/95-36115-K001.jpg?v=1583792121"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

{"id":39685365170221,"title":"100cm \/ Regular \/ Stealth Black \/ Grey","option1":"100cm","option2":"Regular","option3":"Stealth Black \/ Grey","sku":"95-36115-K003","requires_shipping":true,"taxable":true,"featured_image":{"id":28770805841965,"product_id":4542813995053,"position":1,"created_at":"2021-09-02T13:41:22-05:00","updated_at":"2021-09-02T13:41:23-05:00","alt":"Hayes Disc Brakes | Dominion A4 Brake - 100cm \/ Regular \/ Stealth Black \/ Grey","width":1800,"height":1800,"src":"\/\/hayesbicycle.com\/cdn\/shop\/products\/95-36115-K103_K104-_6.jpg?v=1630608083","variant_ids":[39685365170221,39685382111277]},"available":true,"name":"Dominion A4 Brake - 100cm \/ Regular \/ Stealth Black \/ Grey","public_title":"100cm \/ Regular \/ Stealth Black \/ Grey","options":["100cm","Regular","Stealth Black \/ Grey"],"price":24999,"weight":320,"compare_at_price":24999,"inventory_management":"shopify","barcode":"847863028778","featured_media":{"alt":"Hayes Disc Brakes | Dominion A4 Brake - 100cm \/ Regular \/ Stealth Black \/ Grey","id":21118271422509,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1800,"width":1800,"src":"\/\/hayesbicycle.com\/cdn\/shop\/products\/95-36115-K103_K104-_6.jpg?v=1630608083"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}

USA: Find Your Retailer

Description

Introducing the all-new, Stealth Dominion, our award-winning Hayes Dominion A4 brakes are back – adding even more ways for you to stop!

Dominion'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 ultimate performance across all temperatures and easy maintenance.

Dominion A4 features the proprietary QuickBite² system for fast and consistent burnish, coupled with our D-Series rotor to manage the heat with less braking noise.

Available in SFL (Small Finger Lever) - ergonomically tailored for the smaller hand.

•Tool-Free Reach Adjustment
•Flip-Flop Lever Orientation
•King Pin Pad Retention
•Crosshair Caliper Alignment
•Two-Stroke Dual-port bleed system

•310g (100cm hose and mount hardware)
•DOT 5.1 Fluid
•Tool-Free Reach Adjustment
•2-Stroke Dual Port Bleed System
•Sealed Cartridge Bearings Lever Pivot
•100cm Front Hose Length
•180cm Rear Hose Length

Dominion In The News

"The Dominion brake is a winner in every sense.. If you are in search of a good brake, start with this one"

"These are the easiest brakes I've ridden in terms of maintaining grip down steep, greasy, janky North Shore trails without the benefit of suspension. It's a bonus that they still work like new"

"I was pleasantly surprised by the Dominion A4 brake and I think most riders will be as well"

"I find myself recommending these to everyone that sees them on the trail."

"Overall, the Hayes Dominion’s performance was very impressive indeed, descent after descent we encountered nothing but consistent and precise braking."

Rotors and Brackets not included

Get everything you need!

D-Series Rotor

$59.99

Pro Bleed Kit | DOT 5.1 Fluid

from $16.99

Post Mount Disc Brake Caliper Brackets

$19.99

IS Mount Brackets

$19.99

Feel'r Gauge Brake Alignment Tool Purple

$23.99

Low Input - High Fidelity (LoFi)

Low effort system with predictable, progressive ramp up and a crisp bite point.

Loaded With Tech

Reduced Friction - A featherlight lever feel is acheived through a combination of an added glide ring on the piston and sealed ball bearings at the lever blade pivot
SRL - Our Stable Rate Link delivers a consistent lever ratio regardless of reach
Precise Engagement - Each Dominion is factory set to have the lowest dead stroke possible and a crisp bite point.
Built to last - Metal pistons are used to ensure that no matter the terrain or temperature your brake will continue to perform as it did on the first ride
Adjustable Reach - Adjust your lever reach with ease while on the trail thanks to an intuive adjustment knob design

Modal Resonance Cancellation (MRC)

FEA-optimized modal shapes of D-Series rotors are intentionally designed to oppose those of Semi-Met T106 and Sintered T100 pads, canceling out noise and vibration.

Crosshair Caliper Alignment screws allow for quick and accurate setup.

King Pin pad retention bolt adds strength.

2-Stroke dual port bleed system for maximum bleed integrity.

Dominion A4

I have ridden sram, Shimano, magura brakes and these are my favorite. Excellent power and modulation, and I find them easy to work on with the Hayes bleed kit. Was going to try another brake for my next bike but came back to these because I know how good they are

Hayes Dominion King of The Stoppers

I have 3 E bikes and I weight in excess of 200lbs so braking is very important to me. I like a great grabbing hard biting brake and my Dominion A4 that I just purchased provide MORE than enough. I have TRP brakes on my other Ebikes and will be changing them over to the Hayes in the very near future. The TRPs are good, but I just like the power and light touch of the Hayes a bit better. If ya like easy pull brakes with great power and bite, these are the brakes for you. I opted for the 220 rotors.

Fantastic

Really fantastic brakes. Stopping power is the best I've had -- and I've tried Hope E3 (2nd best), Magura MT7 (could never get them to work consistently and lever is terrible), Shimano SLX (pretty good power, probably the best lever feel, but kept blowing seals), SRAM Code (just awful). Bleeding is pretty easy. Lever feel is fantastic.

Love it

Love them so much

1 2 3

Dominion A4 in the News

Name: Dominion A4 Brake
Brand: Hayes Disc Brakes
SKU: 95-36115-K003
Price: 249.99 USD
Availability: InStock

“Gravity riders of all stripes will be stoked to squeeze these brakes."

--brian gerow, singletracks magazine, usa

Read the story here...

"With power to rival the best, superb build quality and class-leading feel, they are a highly recommended purchase for riders looking for a balanced brake with lots of sensitivity."

--trev worset, enduro magazine, germany

Read the story here...

Low Input - High Fidelity (LoFi)

Low effort system with predictable, progressive ramp up and a crisp bite point.

Loaded With Tech

Reduced Friction - A featherlight lever feel is acheived through a combination of an added glide ring on the piston and sealed ball bearings at the lever blade pivot

SRL - Our Stable Rate Link delivers a consistent lever ratio regardless of reach

Precise Engagement - Each Dominion is factory set to have the lowest dead stroke possible and a crisp bite point.

Built to last - Metal pistons are used to ensure that no matter the terrain or temperature your brake will continue to perform as it did on the first ride

Adjustable Reach - Adjust your lever reach with ease while on the trail thanks to an intuive adjustment knob design

Modal Resonance Cancellation (MRC)

FEA-optimized modal shapes of D-Series rotors are intentionally designed to oppose those of Semi-Met T106 and Sintered T100 pads, canceling out noise and vibration.

Dominion A4 Brake

Description

Dominion In The News

Rotors and Brackets not included

Low Input - High Fidelity (LoFi)

Loaded With Tech

Modal Resonance Cancellation (MRC)

Customer Reviews

You may also like

Recently viewed

Dominion A4 in the News

--brian gerow, singletracks magazine, usa

Read the story here...

--trev worset, enduro magazine, germany

Read the story here...

Low Input - High Fidelity (LoFi)

Loaded With Tech

Modal Resonance Cancellation (MRC)

Crosshair Alignment System

Patented alignment screws allow for quick and accurate setup

King Pin
Pad retention bolt adds strength

2-Stroke Dual Port Bleed System
Dual port bleed port system for maximum bleed integrity.

Dominion A4 Brake

Description

Dominion In The News

Rotors and Brackets not included

Low Input - High Fidelity (LoFi)

Loaded With Tech

Modal Resonance Cancellation (MRC)

Customer Reviews

Dominion A4 in the News

--brian gerow, singletracks magazine, usa

Read the story here...

--trev worset, enduro magazine, germany

Read the story here...

Low Input - High Fidelity (LoFi)

Loaded With Tech

Modal Resonance Cancellation (MRC)

Crosshair Alignment System

Patented alignment screws allow for quick and accurate setup

King PinPad retention bolt adds strength

2-Stroke Dual Port Bleed SystemDual port bleed port system for maximum bleed integrity.

King Pin
Pad retention bolt adds strength

2-Stroke Dual Port Bleed System
Dual port bleed port system for maximum bleed integrity.