Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike
Earthling Dirt Bike

Earthling Dirt Bike

$3,500.00

PRE-ORDER CLOSED. ETA: AUGUST '25

Open your mind. Forget what you know. Reconsider the frameworks constructed to define and justify "Gravel." The Earthling delivers in the dirt, and honors the path to it. It's all possible.


Welcome to the Slug Center for self-discovery, where traction, stability, and sacred geometry merge with advanced additive technologies and custom tubing, creating the modern gravel bike you've been searching for. Touch trail. Ground yourself. Ride, Earthling.
Size
Build Kit
Material
Quantity

*Photos are not representative of the actual build kit. See below for the complete parts list. Part spec is subject to change.

Build Kit Details

  • Frameset

  • Shimano GRX

Frameset: Slug Earthling

Fork: ENVE Adventure

Headset: Slug EC34| EC44

Frameset: Slug Earthling

Fork: ENVE Adventure

Drivetrain: Shimano GRX RX820

Wheels: Astral Outback | Alloy

Tires: WTB Nano 700 X 52

Seatpost: MSW

Stem: Promax

Handlebars: Salsa Cowchipper

Tape: MSW Anti-Slip

Saddle: Form Throne RS

Bottom Bracket: Shimano BSA

Headset: Slug EC34| EC44
Title

Geo Chart

50cm

52cm

54cm
Title

A Reach

369

374

389
Title

B Stack

537

556

570
Title

C BB Drop

74

74

74
Title

D ST Length

470

495

515
Title

E TT Length

525

535

554
Title

F HT Length

100

120

135
Title

G Chainstay

435

435

435
Title

H HT Angle

71

71

71
Title

I ST Angle

74

74

74
Title

J Wheelbase

1010

1021

1041
Title

K Fork A-C

395

395

395
Title

Fork Rake

50

50

50
Title

Standover Ht.

719

743

768
Title

Trail

71

71

71
Title

56cm

58cm

60cm

62cm
Title

401

414

426

434
Title

589

608

636

666
Title

74

74

74

74
Title

540

560

580

600
Title

572

590

608

626
Title

155

175

205

235
Title

435

435

435

435
Title

71

71

71

71
Title

74

74

74

74
Title

1060

1080

1101

1119
Title

395

395

395

395
Title

50

50

50

50
Title

792

811

825

844
Title

71

71

71

71
Title

Frame Specs

Sizes: 50-62cm

Headset: EC34 | EC44

Seatpost Diameter: 27.2mm

Seat Clamp: 31.8mm

Fork Axle-Crown: 395-398mm

Fork Offset: 49-50mm

Brake Mount: Flat-mount 140mm

BB Shell: 68mm Threaded BSA

Rear Spacing: 12 x 142mm

Max Tire: 700 x 58mm

Max Chainring: 46T (see notes below)

Water Bottle Mounts: 3x (50-58cm) | 4x (60-62cm)

Rack Mounts: Rear

Included: Rear Axle, Seat Clamp, and UDH

FAQ

What is the recommended fork length?

Our geometry is based off of a 395mm fork with a 50mm offset. A 398mm ENVE adventure fork is also a great option for carrying more gear, or riding a bigger tire.
 

What is the largest rear rotor that will fit on the Earthling?

The Earthling will fit up to a 160mm rotor. The frame is 140mm-direct, so that's the minimum size that's compatible. 

What kind of headset does this bike use?

The Earthling uses external press-in headset cups. The upper cup is an external 34mm and the lower cup is an external 44mm. The SHIS name is: EC34/28.6 EC44/40.

Does the Earthling use a SRAM Universal Derailleur Hanger (UDH)?

Yes, and one is included with every frame.

Can I run SRAM Transmission on the Earthling?

Yes.

What is the max tire width for the Earthling?

We recommend a 700 x 58mm on the rear

Will 650B wheels/tires fit?

Yes. The BB will get low, so if you choose to, 650 x 55mm is the minimum recommended tire size.

What is the max chainring that will fit?

1X: 46T (47.5mm chainline). 2X: 43x30T (47.5mm chainline)
Title

Geo Chart

Frame Specs

Sizes: 50-62cm

Headset: EC34 | EC44

Seatpost Diameter: 27.2mm

Internal Dropper Port on Lower Seat Tube: ...

Seat Clamp: 31.8mm

Fork Compatibility: 395-398mm

Fork Offset: 49-50mm

Brake Mount: Flat-mount 140mm

BB Shell: 68mm Threaded BSA

Rear Spacing: 12 x 142mm

Max Tire: 700 x 58mm

Max Chainring: 46T (see notes below)

Water Bottle Mounts: 3x (50-58cm) | 4x (60-62cm)

Rack Mounts: Rear

Included: Rear Axle, Seat Clamp, and UDH

FAQ

What is the recommended fork length?

Our geometry is based off of a 395mm fork with a 50mm offset. A 398mm ENVE adventure fork is also a great option for carrying more gear, or riding a bigger tire.
 

What's the largest rear rotor that will fit on the Earthling?

The Earthling will fit up to a 160mm rotor. The frame is 140mm-direct, so that's the minimum size that's compatible. 

What kind of headset does this bike use?

The Earthling uses external press-in headset cups. The upper cup is an external 34mm and the lower cup is an external 44mm. The SHIS name is: EC34/28.6 EC44/40.

Does the Earthling use a SRAM Universal Derailleur Hanger (UDH)?

Yes, and one is included with every frame.

Can I run SRAM Transmission on the Earthling?

Yes.

What is the max tire width for the Earthling?

We recommend a 700 x 58mm on the rear

Will 650B wheels/tires fit?

Yes. The BB will get low, so if you choose to, 650 x 55mm is the minimum recommended tire size.

What is the max chainring that will fit?

1X: 46T (47.5mm chainline). 2X: 43x30T (47.5mm chainline)

Bay Area Dirt Bike

Tech Features

Premium 3Al-2.5V
Titanium

Heat-treated with brushed finish and bead-blasted logos.

3D-printed (SLM)
Titanium yoke

Variable wall thickness for added strength and an integrated aesthetic.

Universal Derailleur
Hanger

DUH. Source a new hanger anywhere, anytime. Transmission compatible.

Design Features

Proudly Made
in Taiwan

Proudly Made
in Taiwan