Hayduke started with a vision for the perfect hardtail. Designed around modern frame geometry, a versatile dropout system, and custom drawn tubing, Hayduke is a capable mountain bike built to be used as a single-speed, a singletrack machine, or a bikepacking rig. Since its creation, the story of this beloved hardtail has been one of local singletrack rides, stargazing overnighters, and worldwide exploration.

 

With the next generation, we've updated the geometry for a more playful and responsive character out on the trail, crafted up a lighter and stronger proprietary tubing design, and added a plethora of braze-ons to attach anything that you can dream up—all while staying true to the character of the bike to keep the soul of the Hayduke.

 

Hayduke's steel frame uses a custom drawn externally tapered, seamless, quadruple butted, heat treated 4130 cromoly tubeset that is specific to each frame size—making for a better quality frame while reducing weight and cost for the rider.

The versatile Portage dropout system was designed for riders to easily switch drivetrain types, hub widths, wheel sizes, chainstay lengths, and accept racks. Set it up how you like, and hit the trail.  

 

Geometry

XS S M L XL

A - TT Length

570

590

625

645

666

B - Reach

402

420

450

467

488

C - Wheelbase

1105

1126

1155

1176

1197

D - CS Length

425-437

425-437

425-437

425-437

425-437

F - ST Angle

74

74

74

74

74

G - ST Length

350

380

435

485

530

H - HT Angle

67.6

67.6

67.6

67.6

67.6

I - HT Length

95

100

100

110

110

J - Fork Offset

51

51

51

51

51

K - Fork Length

495

495

495

495

495

BB Drop

50

50

50

50

50

Stack

586

590

590

600

600

Specs

  • Frame Specs

Frame Material

Custom drawn tapered seamless, quadruple butted, heat treated 4130 cromoly. Electrophoretic deposition coating inside and out for rust protection.

Frame Weight

XS - 2340g

SM - 2393g

MD - 2516g

LG - 2588g

XL - 2650g

*Weight includes seat collar and cable guides

Frame Includes

Seatpost collar, rear axle, dropout choice (142 or 148mm, fixed or sliding), Wolftooth Components headset, clear frame protection.

Headtube Diameter

44mm ID, 50mm OD

Rear Dropout Spacing

148mm or 142mm

Dropout Weight

Fixed with bolt-on axle - 219g

Fixed with SRAM Maxle Ultimate - 263g

Adjustable with bolt-on axle - 249g

Adjustable with SRAM Maxle Ultimate - 294g

BB Type

Threaded 73mm English

Headset Lower Stack Height

13mm

Wheel Size

27.5x2.8-3.0 / 29x2.3

Seatpost

31.6, internally routed

Build Specs

  • Build Options
  • Build Process

Frame ($675)

Base ($2000)

Upgrade Options

   

 

 

Fork

Fox 34 Float 120mm

Fox 34 StepCast Performance 120mm ($100)

Rockshox Revelation RC 120mm ($100)

Fox F34 StepCast Factory 120mm ($250)

Rockshox Pike RCT3 120mm ($250)

Cane Creek Helm 120mm Air ($250)

Wheelset

Sun Duroc 40

NoTubes Baron MK3 Wheelset ($100)

I9 101 to Sun Duroc 40 ($350)

I9 Hydra w/ NoTubes MK3 or RaceFace Arc35 ($500)

Reynolds TR Carbon ($650)

I9 Backcountry 360 or 450 ($750)

Reynolds Black Label Carbon w/ I9 Hubs ($1200)

I9 Hydra Backcountry 360c Carbon ($1500)

Tires

Terrene McFly 27.5x2.8 Tough

Terrene Chunk 27.5x3.0 Tough

Drivetrain

Shimano SLX drivetrain

SRAM NX Eagle drivetrain

Shimano XT drivetrain ($300)

SRAM GX Eagle drivetrain ($300)

SRAM XO Eagle drivetrain ($900)

SRAM XX1 Eagle AXS drivetrain ($1600)

Derailleur

w/ drivetrain

w/ drivetrain

w/ drivetrain

w/ drivetrain

w/ drivetrain

w/ drivetrain

Cassette

w/ drivetrain

w/ drivetrain

w/ drivetrain

w/ drivetrain

w/ drivetrain

w/ drivetrain

Crankset

RaceFace Aeffect

w/ drivetrain

RaceFace Aeffect

w/ drivetrain

w/ drivetrain

w/ drivetrain

Chain

w/ drivetrain

w/ drivetrain

w/ drivetrain

w/ drivetrain

w/ drivetrain

w/ drivetrain

Headset

Wolftooth ZS44/ZS44 Black

Wolftooth ZS44/ZS44 any color w/ Stainless Bearings ($50)

Cane Creek ViscoSet Steering Damper ($60)

Brakes

Shimano SLX w/ Finned Pads RT-64 rotors

Shimano XT w/ Finned Pads RT-74 rotors ($100)

SRAM Guide R ($100)

Shimano XT w/ Finned Pads IceTech Rotors ($175)

SRAM Guide RSC ($175)

Shimano XT 4-pots w/ IceTech rotors ($250)

Hayes Dominion ($250)

Seatpost

RaceFace Ride

RaceFace Aeffect Dropper 150mm ($100)

RaceFace Turbine R Dropper 150mm ($300)

Fox Transfer Factory Dropper 150mm ($350)

Saddle

Custom Esker Ergon SME3

Stem

RaceFace Turbine 31.8mm clamp, 60mm

RaceFace Turbine 35.0mm Clamp, 60mm

RaceFace Turbine R 35.0mm clamp, 60mm ($30)

Industry Nine A35, 60mm ($100)

Handlebar

Esker alloy, 760mm width, 31.8mm clamp

Esker Epoch Alloy, 780mm width, 35.0mm ($20)

Esker Epoch Carbon, 780mm width, 35.0mm ($70)

RaceFace Turbine R, 35.0mm, 20mm rise ($90)

Grips

Ergon GE1

Wolftooth Fat Paws ($10)

Wolftooth Karv ($8)

Each and every Esker bike is built to order, giving you the ability to select the parts that matter to you. Once you purchase an Esker, your bike will be put into the build queue and sent to production where it will be assembled and shipped out to you within 1-2 weeks.

“The Hayduke is superior for rugged bikepacking... I’m exploring new terrain every day and the Hayduke is the best tool for the job.”

- Bikepacking.com

“Hayduke is a steel hardtail with a trail bike attitude and impressive versatility.”

- Dirt Rag

Smooth singletrack, technical trail, bikepacking, and downhill riding, the Hayduke crushed it all.

- GearJunkie

Esker Hayduke
Esker Hayduke
Esker Hayduke

Esker Hayduke

Regular price $675.00