Marin Bikes Four Corners 1 CUES Drivetrain - Road Bike for Gravel, Adventure, Touring

The Marin Four Corners 1 is built for riders who want to explore beyond their everyday routes. Whether commuting to work, taking on weekend adventures or setting off on multi-day bikepacking trips, this versatile touring bike offers dependable performance and practical carrying capacity without stretching your budget.

Its custom-butted Series 1 CrMo steel frame and fork are designed to provide a comfortable ride over rough and uneven surfaces while maintaining the strength needed for fully loaded journeys. Multiple bottle cage, accessory, rack and mudguard mounts make it easy to carry the essentials for longer rides and everyday use.

Marin's size-specific wheel setup helps match the bike to the rider, with 650B wheels on XS and S frames and 700C wheels on M, L and XL sizes. A Shimano CUES 2x9-speed drivetrain, wide 45mm tyres and mechanical disc brakes provide a practical combination for commuting, touring and gravel exploration.

Frame and Fork

The Series 1 CrMo steel frame features size-specific wheel sizing, biometric geometry and mounts for racks and mudguards. The matching CrMo fork adds eyelets for racks, bottle cages and fenders, making the Four Corners 1 suitable for practical touring setups.

Drivetrain and Braking

The Shimano CUES 2x9-speed drivetrain combines a 46/32T crankset with an 11-36T cassette to provide a versatile range of gears. Tektro Spyre-C mechanical disc brakes, paired with 160mm rotors front and rear, provide dependable braking control.

Technical Specifications

Technology

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.

Bottle / Gear Mounts
Fork leg bottle or accessory cage mounts on the Four Corners, along with an abundance of gear mounts within the front triangle, meaning that you can carry pretty much anything you want.

Tall Headtubes
The Four Corners is built around a tall headtube, allowing for more frame carrying capacity (larger bags), great rider visibility for taking in the sights, as well as the ability to utilize the multiple positions on the drop bars for all-day comfort.

Disc Brakes
Disc brakes provide smooth, controlled stopping in all conditions with minimal maintenance. Especially important when riding a fully loaded bike.

Steel Is Real
The Four Corners uses butted and formed Series 1 4130 CrMo frames and CroMo forks specially tuned for loaded touring with upright geometry for comfortable and efficient all-day rides.

Generous Tire Clearance
The Four Corners 1 can accommodate tires up to 45mm wide.

Dropper Post Compatible
The Four Corners offers a port on the lower part of the seat tube, allowing the installation of an aftermarket dropper post. Droppers are great at adding clearance when riding technical trails, or for simply putting a foot down while stopped at a light.

Geometry and Size Guide

All lengths in millimeters