Hayes Dominion T2, product shot
Photo: Hayes
Brake
Hayes Dominion range · 4 versions

HayesDominion T2

Not listed on Hayes' EU store; US store shows US$162.49 per brake (tagged sale/closeout)

Pistons
2 x 24 mm
Fluid
DOT 5.1
Hose
K2, 100 cm front / 180 cm rear
Lever
Carbon fibre, tooled reach & pad-contact adjust
Weight
254 g
Weight
254 gper brake, claimed

Overview

Hayes' limited-edition lightweight two-piston Dominion with carbon lever (254 g claimed, 24 mm pistons); US$162.49 per brake on Hayes' US store, flagged as sale/closeout.

The limited-edition Dominion T2 is the lightweight two-piston version of the Dominion, built with a Reynolds-designed, in-house-produced carbon-fibre lever, titanium hardware, composite reservoir cover, aluminium-backed pads and weight-reducing machining. Hayes says it is 50 g lighter per brake than the Dominion A2, at 254 g.

It keeps the Dominion's DOT 5.1 hydraulics with Two-Stroke dual-port bleed and K2 hose, 24 mm caliper pistons, Crosshair caliper alignment and a sealed cartridge-bearing lever pivot, and adds tooled reach and pad-contact adjustment with axial lever orientation.

  • 254 g per brake, 50 g lighter than the A2
  • Reynolds carbon lever, titanium hardware
  • 24 mm caliper pistons
  • Tooled reach and pad-contact adjust
  • DOT 5.1, Two-Stroke dual-port bleed

Gallery

Full specifications

Caliper

Caliper piston diameter
24 mm
Alignment
Crosshair caliper alignment
Pads
Aluminium backing plates

Lever

Reach adjust
Tooled
Pad contact adjust
Tooled
Lever orientation
Axial
Lever pivot
Sealed cartridge bearings
Materials
Carbon-fibre lever, composite reservoir cover, titanium hardware

Hydraulics

Fluid
DOT 5.1
Bleed
2-Stroke dual-port bleed system
Hose
K2 hose
Hose length
100 cm front / 180 cm rear

General

Weight
254 g
US price
US$162.49 per brake (sale)

Manufacturer specification — Hayes. Specs and prices can change; check with the brand or your dealer.

Hayes Dominion versions compared

Dominion A4Dominion T4Dominion A2Dominion T2
Price€278—€139—
Pistons4 x 17 mm4 x 17 mm2 x 24 mm2 x 24 mm
FluidDOT 5.1DOT 5.1DOT 5.1DOT 5.1
HoseKevlar, 180 cm—Kevlar, 100 cm front / 180 cm rearK2, 100 cm front / 180 cm rear
BleedTwo-Stroke dual port———
LeverTool-free reach adjust; SRL short-reach optionCarbon fibre, tooled reach & pad-contact adjustTool-free reach adjust; SRL optionCarbon fibre, tooled reach & pad-contact adjust
Weight310 g257 g303 g254 g
Rotor sizes—160 / 180 / 203 mm (D-Series)——
Weight310 g257 g303 g254 g
E-bike ratedYes———

eMTBs that come with the Hayes Dominion

Hayes Dominion T2: FAQ

How much does the Hayes Dominion T2 weigh?

Hayes quotes 254 g (per brake, claimed).

Is the Hayes Dominion T2 suitable for e-bikes?

Hayes does not specifically rate it for e-bikes. Check the manufacturer’s approval and your bike maker’s recommendations before fitting it to an eMTB.

What are the key specs of the Hayes Dominion T2?

Pistons: 2 x 24 mm; Fluid: DOT 5.1; Hose: K2, 100 cm front / 180 cm rear; Lever: Carbon fibre, tooled reach & pad-contact adjust; Weight: 254 g.

What other versions of the Hayes Dominion are there?

Dominion A4 (€278), Dominion T4, Dominion A2 (€139).

More Hayes brakes

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