MARIN FOUR CORNERS 1 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 Quickstyx 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, Plentiful Gear Mounts 

• 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. Quickstyx, 700/650x45

• Derailleur Rear

  microSHIFT Sword Black, 9-Speed

• Derailleur Front

  microSHIFT Sword Black

• Shift Levers

  microSHIFT Sword Black, 2x9-Speed

• Crankset

  Forged Aluminum, 46-29T

• Bottom Bracket

  Square Taper, Sealed Bearing

• Chain

  KMC X9

• Cassette

  microSHIFT, 9-Speed, 11-38T

• Brakes Front

  Tektro Spyre-C Road Mechanical Disc, 160mm Rotor

• Brakes Rear

  Tektro Spyre-C Road Mechanical Disc, 160mm Rotor

• Brake Levers

  microSHIFT Sword 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

  Nylon Platform

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