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Marin Four Corners 1 Gravel Bike Black

Brand: Marin

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Steel Frame/ Marin Steel Fork

29" / 27.5" (Varies by Frame Size) Wheel Size

Hydraulic Disc Brake

Shimano Sora Groupset

3 x 9 Speed

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Product Details

Description

Midweek commute, weekend adventures. No problem for the Marin Four Corners, this is a steel-framed explorer that’s as comfortable on the asphalt as it is in the dirt. 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. The butted 4130 CrMo steel frame and fork are designed to be comfortable on rough roads but to also handle fully loaded touring and bikepacking. Marin 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. 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. Fitted with 40mm wide multi-surface Vee GP tires, the Four Corners is 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.

Key Features

Lightweight aluminum frame for durability
Versatile geometry for comfort and stability
Wide tyres for enhanced traction and control
Multiple gear options for varied terrain
Disc brakes for reliable stopping power

Specifications

Product Overview

Product

Marin Four Corners 1 Gravel Bike Black

Brand

Marin

Parent SKU

DU3YEF6M

Size SKUs

SM: MAAD247681002
MD: MAAD247681003
LG: MAAD247681004
XL: MAAD247681005

Year Model

2024

Product Features

Frame Material

Steel

Colour

Black

Wheel Size

29" / 27.5" (Varies by Frame Size)

Brake Type

Hydraulic Disc Brake

Gears

3 x 9

Fork Material

Steel

Build

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

Handlebars

Marin Butted Alloy, Compact 16º Flared Drop

Headset

FSA No.8D, Sealed Cartridge Bearings

Grips

Marin Comfort Bar Tape, Shock Absorbing Gel Pads

Stem

Marin 3D Forged Alloy

Bottom Bracket

Shimano

Pedals

Trekking Platform

Saddle

Marin MTB

Seat Post

Marin Alloy, 27.2mm

Wheels

Wheel Size

29" / 27.5" (Varies by Frame Size)

Rims

Marin Aluminum, Double Wall, Disc Specific

Hubs

FRONT: Forged Aluminum Alloy, Disc, 32H / REAR: Forged Aluminum Alloy, Disc, 32H

Spokes

14g Black Stainless Steel

Groupset

Crankset

Shimano Sora FC3030, 50-39-30T

Chain

KMC X9

Brakes

Tektro Spyre-C Road Mechanical Disc, 160mm Rotor

Shifters

Shimano Sora ST300 3x9-Speed

Rear Derailleur

Shimano Sora 9-Speed

Cassette

9 Speed

Frequently Asked Questions

What is the Marin Four Corners 1 Gravel Bike used for?

The Marin Four Corners 1 Gravel Bike is used for commuting, gravel riding, touring and bikepacking—basically any mix of paved and unpaved rides where comfort, load-carrying and reliability matter.

Why choose the Marin Four Corners 1 Gravel Bike?

Choose the Marin Four Corners 1 Gravel Bike for its durable steel frame, versatile geometry, plentiful mounts for racks and fenders, dependable Shimano Sora drivetrain and confident mechanical disc brakes—built to handle everyday rides and extended adventures.

Who is the Marin Four Corners 1 Gravel Bike designed for?

The Marin Four Corners 1 Gravel Bike is designed for riders who want a comfortable, capable bike for midweek commutes, weekend gravel exploration or fully loaded touring—available in sizes to fit riders roughly 4'11" to 6'4".

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PERFECT RIDE GUARANTEE

If you don't love it, you can swap it, up to 30 days from purchase!* Learn more »

FREE BIKE BUILD

We'll build your bike for free when you click and collect at any 99 Bikes store.

FIRST FREE TUNE-UP

Every bike comes with a complimentary free tune-up and safety check. Learn more »

Built to carry and last

Butted 4130 CrMo steel frame and fork absorb rough roads and handle fully loaded touring or bikepacking. Multiple rack, fender and bottle mounts make long trips and commuting simple.

Comfort that goes the distance

High front-end and size-specific geometry provide upright, all-day comfort and confident handling on asphalt and dirt. Shock-absorbing bar tape and a forgiving frame smooth out rough surfaces.

Ready for mixed-surface adventure

Wide 40mm multi-surface tyres, generous clearance and reliable mechanical disc brakes deliver traction and control on varied terrain. Shimano Sora 3x9 gearing gives a wide range for climbs, flats and loaded riding.

Not sure what sized bike is best?

Answer a few short questions and we'll make a recommendation on which size is best for you.

Your selected size: -

Legend

Available size

Current size

Unavailable size

Suggested sizing

Wheel Size

29" / 27.5" (Varies by Frame Size)

Stack

580

618

648

679

Reach

381

403

413

427

Top Tube Length

553

586

617

647

Seat Tube Length

422

462

495

528

Seat Tube Angle

73.5

72.5

72.0

Fork Length

Head Tube Length

188

209

252

Head Tube Angle

188.0

209.0

252.0

Handlebar Height

Bottom Bracket Drop

Chainstay Length

Wheelbase

Standover Height

707

745

777

810

Minimum Seat Height

Maximum Seat Height

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