15
Apr
2019

Hayes Dominion A2 & A4 Brakes, JUNIT Kids Components, STR Rims, SRC Hubs, Protaper

4/15/2019 : sicklines

The Hayes Performance Systems had a variety of new products at Sea Otter on display. The Dominion brakes are well thought out and they introduced a 2 piston model at the show. In addition to the brakes they have also designed a lot of kids specific (6-10yrs) items in 20/24″ through a variety of components they’ve calling JUNIT. Learn more about it all inside.

Hayes has clearly been busy developing new products and refining their lineup. They recently acquired Reynolds Wheels and had many quality new products on display.  Check out the videos and pictures below for details.

Dominion Brake Video

JUNIT Video

The Dominion brake family grew at Sea Otter with a 2 piston brake offering called the Dominion A2. It packs many of the same features as the Dominion A4 but in a lighter XC/Trail/Enduro format.  You can mix/match the calipers to suit your needs as well.

, Hayes Dominion A2 & A4 Brakes, JUNIT Kids Components, STR Rims, SRC Hubs, Protaper

The Dominion brake as a whole is pretty impressive and has very a good lever feel. Hayes includes a lifetime leak proof warranty as well. The brake lever features an adjustable deadstroke adjustment, cartridge bearings in the lever, internal teflon glide ring, tool-free reach adjust, DOT 5.1 fluid, as well as sintered & organic pads included in the box.  Check out the cutaway pictures below for details into the brake lever.

, Hayes Dominion A2 & A4 Brakes, JUNIT Kids Components, STR Rims, SRC Hubs, Protaper

Deadstroke adjustment is done via an allen bolt you see behind the lever blade., Hayes Dominion A2 & A4 Brakes, JUNIT Kids Components, STR Rims, SRC Hubs, Protaper

, Hayes Dominion A2 & A4 Brakes, JUNIT Kids Components, STR Rims, SRC Hubs, Protaper

, Hayes Dominion A2 & A4 Brakes, JUNIT Kids Components, STR Rims, SRC Hubs, Protaper

The rotor is 1.95mm still but they’ve redesigned it to help dissipate heat better.  Both the A2 & A4 are available in the usual rotor sizes as well (160,180,203).

, Hayes Dominion A2 & A4 Brakes, JUNIT Kids Components, STR Rims, SRC Hubs, Protaper

When it comes time for service, the dual sided bleed ports on the Dominion A2/A4 will be much easier since each side of the caliper can be bled where air bubbles often like to hide in disc brakes.

, Hayes Dominion A2 & A4 Brakes, JUNIT Kids Components, STR Rims, SRC Hubs, Protaper

Hayes also worked on many new things this year as they’ve acquired Reynolds, updated their branding, and helped develop a number of 6-10yr old kid friendly products they’ve labeled JUNIT across their lineup.  They worked with the Outlaw Team to develop kid specific components in 20″ and 24″.

, Hayes Dominion A2 & A4 Brakes, JUNIT Kids Components, STR Rims, SRC Hubs, Protaper

For stopping power on these bikes they paired the Dominion A2 / A4 brake with a smaller single finger lever (SFL) option for the kids.  To go with their smaller hands this single finger lever is paired onto a ProTaper JUNIT specific handlebar that is much narrower at the end of the handlebars for their smaller hands.  The Manitou Machette JUNIT fork is available in 20″ or 24″ options and utilizes a modified Dorado Air spring to give these riders the support they need on the trails.  They adapted a Sunringle DUROC30 tubeless rim (STR) in a few wheel options or as rim only. Details below and in the pricing section.

, Hayes Dominion A2 & A4 Brakes, JUNIT Kids Components, STR Rims, SRC Hubs, Protaper

JUNIT [pronounced jay:unit] components feature youth-sized 20” and 24” suspension, wheels, hydraulic brakes, and a unique handlebar/grip system, specifically tailored for youth riders.

A key component of the JUNIT system is that the Manitou Machete 20” and 24” suspension forks offer complete adult functionality and adjustability, yet specifically tuned for kids. Our team was able to apply our extensive suspension expertise and knowledge to create something truly unique. Finally, young riders have the option of either a 20” or 24” fork to shred on a lightweight, high-quality Manitou chassis.

Another component of the JUNIT system is the new SUNringlé Düroc wheels. Offered in both 20” and 24”, JUNIT Düroc are high-quality, tubeless ready wheels for kids. Our wheel engineers applied their experience in designing rim profiles, materials, as well as applying SUNringlé Tubeless Ready (STR) technology yielding a premium youth wheel system.

Building off our award-winning Dominion A4 hydraulic brake, our product development team set out to design a brake system specifically for any rider with smaller hands. Dominion SFL (Short Finger Lever) maintains all the power and feel of our proven A4 design, fitted with a specifically smaller designed and narrower brake lever optimized for small hands.

JUNIT ProTaper MTB handlebar and grip is the final part of this system. Engineering began by researching anthropometric data from a NASA database. We determined the average hand size of a 6-10 year old which set the team into motion. Normally, grip diameter is a result of adding material to a standard handlebar size. For the JUNIT ProTaper handlebar system, we flipped the script. We began by determining the ideal grip diameter and worked inward. The result is a handlebar and grip with a 23mm outside diameter that’s ideal for a smaller ergonomic profile. The JUNIT ProTaper handlebar and grip are specifically designed to be used together.

 

Pricing
Dominion A2 (2 piston brake) $229.99
Dominion A4 (4 piston) $229.99
D Series Rotor (160/180/203mm) $49.99
Dominion A2 SFL (Single Finger Lever for Kids/JUNIT) $229.99
Dominion A2 SFL (Single Finger Lever for Kids/JUNIT) $229.99
Manitou Machette JUNIT – 20″ Boost in 120mm or 100mm of travel $449.99
Manitou Machette JUNIT – 24″ Boost in 145mm, 120mm or 100mm of travel $449.99
ProTaper JUNIT Handlebar and Grip Combo $84.99
ProTaper JUNIT Grips Only (Only compatible with JUNIT handlebar) $28.99
Sunringle DUROC30 JUNIT Wheel (Front 100×15/QR or 110×15) $239.99
Sunringle DUROC30 JUNIT Wheel (Rear 142/QR or 148×12) $359.99
Sunringle DUROC30 Rim Only JUNIT 20″ or 24″ 129.99ea

 

Learn more at www.hayesdiscbrake.com

 

See more of our 2019 Sea Otter coverage

 


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