Marin Bikes | Four Corners 2

📏Size Guide

Built for bikepacking, commuting, and everything in between, the 2025 Marin Four Corners 2 is your go-anywhere steel explorer. Whether you're grinding out weekday miles or heading into the hills on the weekend, this fully-equipped adventure bike blends long-haul comfort with true versatility. The new Series 3 CrMo frame enhances durability without sacrificing ride quality, while wide-range SRAM gearing and hydraulic disc brakes keep you in control wherever the road—or trail—leads.

Designed around modern touring needs, the Four Corners 2 comes loaded with mounts for racks, fenders, and up to six water bottles. With wheel sizes that scale with frame size and geometry tuned for stability and comfort, it's ready to go far, carry heavy, and keep rolling through it all.

Key Features:

• Series 3 Double-Butted 4130 CrMo Frame & Fork
Steel construction for a smooth ride, plus added strength for fully loaded adventures

• SRAM Apex 1x12-Speed Drivetrain
Simple, wide-range gearing for steep climbs and loaded touring

• SRAM Apex 1 Hydraulic Disc Brakes
Confident braking power and modulation in all conditions

• Size-Specific 650b or 700C Wheels
Optimized fit and handling for riders from 4'11" to 6'4"

• Vee Tire Quickstyx 44mm Tires (Tubeless-Ready)
Versatile, high-volume tires with room for up to 50mm wide rubber

• Six Bottle Mounts + Rack, Fender & Lowrider Mounts
Full touring-ready capacity for long hauls and remote rides

• Upright Geometry with High Front End
All-day comfort and visibility, on or off pavement