Japhy was born out of the desire to ride everything from the backyard to the backcountry. It is designed and built to satisfy your adventurous side, and is equally at home on your favorite flow trail or an overnight epic. Japhy is the hardtail you reach for no matter what the ride ahead promises.

Taking what we learned with Hayduke, Japhy is designed around modern frame geometry and custom steel tubing for a playful and responsive character out on the trail.

With a 120mm fork and clearance up to 29x2.8, Japhy is ready to take on everything from backyard flow trails to backcountry singletrack.

Japhy 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, and chainstay lengths. Set it up how you like, and hit the trail.

"The Japhy really comes alive on rough trails and chunky roads. While zipping along at speed, the Japhy skims effortlessly through rock gardens, roots, and rutted-out trails."

- Bikepacking.com

"Japhy is scrappy and is willing to claw its way through just about anything...The Japhy is a veritable ally for whatever you can throw at it."

- The Radavist

 

"It will pick up speed well, and it will shred, and it doesn't feel heavy going uphills... This bike is for someone that wants a really nice ride feel. It rides real comfortable."

- Hardtail Party

Geometry

S M L XL

A - Effective TT Length

582

618

640

660

B - Reach

420

450

470

490

C - Wheelbase

1141

1171

1195

1215

D - CS Length

425-437

425-437

425-437

425-437

F - ST Angle

75

75

75

75

G - ST Length

380

410

450

490

H - HT Angle

66

66

66

66

I - HT Length

100

100

110

110

J - Fork Offset

51

51

51

51

K - Fork Length

492

492

492

492

BB Drop

65

65

65

65

Stack

604

604

614

614

Rider Height

5'2"- 5'7"

5'6"- 5'11"

5'10"- 6'2"

6'1"+

Standover (at 0% sag)

735

742

774

800

Max Insertion

205

220

260

300

Hardtail geometry based on 30% fork sag.

FRAME Specs

Frame Material

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

Thru Axle

Boost 148 / 174mm / M12x1.75”

Frame Includes

Seatpost collar, rear axle, sliding 148mm dropout, Wolftooth Components headset

Headtube Diameter

44mm ID, 50mm OD

Rear Dropout Spacing

148mm or 142mm

BB Type

Threaded 73mm English

Headset Lower Stack Height

13mm

Wheel Size

29x2.3-2.8. Max tire clearance is 2.8 in the forward position, and 3.0 in the rearward position.

Seatpost

34.9 clamp, 31.6 post, internally routed

Max Chainring

34t round / 32t oval / Boost Chainline

Weight

SM - 2584g, MD - 2662g, LG - 2755g, XL - 2813g - Weight includes dropouts, axle, seat collar, and cable guides

Brake Mount

Shimano mount for 160mm: SM-MA-F160P/S or SM-MA-R140P/S - SRAM mount for 160mm: 0mm IS disc brake adapter

Build Specs

Build J1 J2 J3

Frame

Japhy 29

Japhy 29

Japhy 29

Fork

Marzocchi Z2 120mm

MRP Raven 120mm

MRP Ribbon SL 120mm

Headset

Wolf Tooth Components, ZS44/EC44

Wolf Tooth Components, ZS44/EC44

Wolf Tooth Components, ZS44/EC44

Spacers

30mm

30mm

30mm

Stem

Epoch Alloy 35.0/50mm

Epoch Alloy 35.0/50mm

I9 A35/50mm

Handlebar

Epoch Alloy, 780

Epoch Alloy, 780

Epoch Carbon, 780

Grips

SDG Thrice

SDG Thrice

SDG Thrice

Brakes

Shimano Deore 4-Piston

SRAM G2 RS

Shimano XT 4-piston

Rotors

Shimano RT6 180mm

SRAM Centerline 180mm

Shimano RT8 180mm

Dropper/Lever

SDG Tellis / SDG Lever

S: 125mm - M/L/XL: 150mm

SDG Tellis / Wolf Tooth Remote

S: 125mm - M/L/XL: 150mm

SDG Tellis / Wolf Tooth Remote

S: 125mm - M/L/XL: 150mm

Saddle

SDG

SDG

SDG

Wheels

Shimano MT620 / Stans Flow S2 Comp

Industry Nine 1/1 Enduro S

Industry Nine 1/1 Enduro S

Drivetrain

Deore 12spd, 10-51

GX 12spd, 10-52

XT 12spd, 10-51

Cranks

Deore

GX

XT

Tires

Terrene McFly 2.8

Terrene McFly 2.8

Terrene McFly 2.8

Price

2300

3300

3600

Specs are subject to change at any time.

Japhy completes are built to order in Montana and estimated to ship out within 4 weeks. If your build timeline changes, Esker will reach out to you.

Japhy
Japhy
Japhy
Japhy

Japhy