Marin Four Corners

Marin Four Corners


MSRP • $2,649.99

Color • Gloss Copper




The Four Corners is built for the adventure rider looking to
explore deep off of the beaten path, sleep outdoors, and be ready
for whatever pavement, dirt road, or light singletrack is around
the next corner. The heads-up bar position and generous braze-ons
that make it possible to live on the bike for days at a time are
equally at home on the daily commute. 

Size Rider Height Range
4'11" to 5'2"
5'2" to 5'6"
5'6" to 5'10"
5'10" to 6'1"
6'1" to 6'4"



Series 3 Double Butted and Formed CrMo,Size-Specific Wheels (XS, S = 650B, M, L, XL =700C), Utilitour Biometric Geometry, Fender and Rack Mounts, 142x12mm Thru-Axle Dropouts, Chainstay Disc Mount


Butted CrMo, Fender, Rack and Bottle Cage Eyelets, 15mm Thru-Axle, Post-Mount Disc


WTB KOM i25, 25mm Inner, Tubeless Compatible

Hub Rear

Forged Aluminum Alloy, 142x12mm, Alloy Axle, Quad Cartridge Sealed Bearings, SRAM XD Driver, 6-Bolt Disc, 32H

Hub Front

Forged Aluminum Alloy, 100x15mm, 6-Bolt Disc, 32H


14g Black Stainless Steel


WTB Resolute, 650B/700Cx42, Folding Bead, Tubeless Compatible

Derailleur Rear

SRAM Apex 1 11-Speed

Derailleur Front


Shift Lever

SRAM Apex 1 1x11 Speed


FSA Gossamer Pro, Megatooth 38T Chainring, BB386EVO Alloy Spindle




e*thirteen TRS 11-Speed, 9-44T

Brakes Front

SRAM Apex 1 Hydraulic Disc, 160mm Rotor

Brakes Rear

SRAM Apex 1 Hydraulic Disc, 160mm Rotor

Brake Levers

SRAM Apex 1 Hydraulic


Marin Butted Alloy, Compact 12º Flared Drop


Marin 3D Forged Alloy


Marin Silicone Gel Tape


FSA No.8D, Sealed Cartridge Bearings


Marin Alloy


WTB Volt Sport 142 Custom


Trekking Platform



Bike Geometry
Type XS 650B S 650B M 700C L 700C XL 700C
A. STACK (MM) 560 580 617 646.3 677.6
B. REACH (MM) 376.7 381 403.3 412.6 426.6
C. HEADTUBE ANGLE 70.5° 70.5° 71.5° 71.5° 71.5°
D. HEADTUBE LENGTH (MM) 177 198 198 229 262
E. SEATTUBE ANGLE VIRTUAL 74.5° 73.5° 73.5° 72.5° 72°
F. SEATTUBE ANGLE ACTUAL 74.5° 73.5° 73.5° 72.5° 72°
G. SEATTUBE LENGTH (MM) 381 422 462 495 528
H. TOPTUBE ACTUAL (MM) 518 533 564 589 616
I. TOPTUBE EFFECTIVE (MM) 532 552.8 586.1 616.4 646.8
J. BOTTOM BRACKET HEIGHT (MM) 285 285 285 285 285
K. BOTTOM BRACKET DROP (MM) 53.5 53.5 72 72 72
L. CHAINSTAY (MM) 432 432 450 450 450
M. WHEELBASE (MM) 1030.4 1041.8 1081 1100 1125.1
N. STANDOVER HEIGHT (MM) 666.55 706.38 744.53 777.26 809.8
O. FORK OFFSET (MM) 43 43 49 49 49
SEATPOST DIAMETER (MM) 27.2 27.2 27.2 27.2 27.2
HANDLEBAR WIDTH (MM) 400 400 420 440 440
STEM LENGTH (MM) 70 70 70 70 70
CRANK LENGTH (MM) 170 170 170 175 175


Tech 1 Image Fc Elite

Five Frame Sizes

The Four Corners is available in five frame sizes to fit riders 4’11 to 6’4” without compromise. For proper fit and bike handling sizes XS and S use 650B wheels, sizes M, L, and XL use 700C.

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Bottle / Gear Mounts

New for 2018 are fork leg bottle or accessory cage mounts, along with traditional front triangle bottle mounts (three on sizes M-XL, two on XS-S) for up to six bottle cage mounts total.

Tech 3 Image Fc Elite

Fender / Rack Mounts

The Four Corners has separate fender and rack mounts on both the frame and fork to fit a variety of aftermarket accessories securely and without interference with one another.

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Steel is Real

The Four Corners uses a double butted and formed 4130 CrMo frame specially tuned for loaded touring with upright geometry for comfortable and efficient all-day rides.

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Disc Brakes

Disc brakes provide smooth, controlled stopping in all conditions with minimal maintenance.


  • "If you’re a commuter or utility rider who wants to do some touring on the weekends, the Four Corners is solid candidate. With a change of tires it’s also a capable dirt-road explorer. A few short years ago a bike of this caliber this would have sold for much more. But despite its base-level designation, the Four Corners performs well above its price point. It’s so capable, in fact, that I often found myself inadvertently comparing it to bikes retailing for $500-$1000 more. Sure, those more expensive bikes might be a little lighter, and come spec’d with fancier components, but the Four Corners gives up nothing when it comes to function and versatility."

  • "If you appreciate an upright, comfort-oriented geometry, plus the ability to run big tires, the 2018 Marin Four Corners certainly looks like a good value."

  • "The mark of a good adventure bike is how easily it can go from dirt roads and gravel paths to the city streets of a daily commute. Marin's Four Corners bike is optimized for comfortable multi-terrain touring, with a long, tall frame that steers slowly and has extra braze-ons for storing cargo without sacrificing balance and speed."

  • "Four Corners is a recommendable, very attractive price and universal expedition bike."

  • "The Four Corners is a comfy, fun bike to ride over all terrains, equally at home loaded up with touring/bikepacking bags as it is at home on the daily commute."

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