MARIN FOUR CORNERS 2025

Midweek commute, weekend adventures. No problem for the Marin Four Corners, our steel-framed explorer that’s as comfortable on the asphalt as it is in the dirt.

A butted 4130 CrMo steel frame and fork are designed to be comfortable on rough roads but to also handle fully loaded touring and bikepacking. We’ve included six bottle mounts, rack and fender eyelets, lowrider fork mounts, generous tire clearance and disc brakes to set you up for all conditions and all terrain.

Don’t be fooled, that classic frame material doesn’t mean low-tech. We’ve used biometric fit data to offer five different frame sizes, with size-matched 650b or 700C wheels to perfectly suit riders between 4’11” – 6’4”. A high front-end creates all-day comfort and heads-up visibility, off-road-ready geometry means you won’t skip a beat when you head off the asphalt and explore Beyond Road.

40mm wide multi-surface Vee GP tires are up for wherever your adventures take you, while Shimano's supremely reliable Sora 3x9 drivetrain ensures that you'll always have the right gear ratio. Finally, Tektro Spyre-C mechanical disc brakes deliver controlled braking, even when riding fully loaded.

SPECIFICATIONS

FRAME
Series 1 CrMo, Size-Specific Wheels (XS, S = 650B, M, L, XL = 700C) , Biometric Geometry, Fender and Rack Mounts, Disc Mount

FORK
Series 1 CrMo, Fender, Rack, and Bottle Cage Eyelets, IS Disc Mount

RIMS
Marin Aluminum, Double Wall, Disc Specific

HUB REAR
Forged Aluminum Alloy, Disc, 32H

HUB FRONT
Forged Aluminum Alloy, Disc, 32H

SPOKES
14g Black Stainless Steel

TIRE
Vee Tire Co., GPVee, 700/650x40

DERAILLEUR REAR
Shimano Sora 9-Speed

DERAILLEUR FRONT
Shimano Sora

SHIFT LEVERS
Shimano Sora ST300 3x9-Speed

CRANKSET
Shimano Sora FC3030, 50-39-30T

BOTTOM BRACKET
Shimano

CHAIN
KMC X9

CASSETTE
Shimano HG200 9-Speed, 11-34T

BRAKES FRONT
Tektro Spyre-C Road Mechanical Disc, 160mm Rotor

BRAKES REAR
Tektro Spyre-C Road Mechanical Disc, 160mm Rotor

BRAKE LEVERS
Shimano w/ Integrated Shifters

HANDLEBAR
Marin Butted Alloy, Compact 16º Flared Drop

STEM
Marin 3D Forged Alloy

GRIPS
Marin Comfort Bar Tape, Shock Absorbing Gel Pads

HEADSET
FSA No.8D, Sealed Cartridge Bearings

SEATPOST
Marin Alloy, 27.2mm

SADDLE
Marin MTB

PEDALS
Trekking Platform

Specifications, pricing, and availability are subject to change without notice.