旅に出たくなる“本気のツーリングバイク”｜MARIN FOUR CORNERSを徹底チェック【2026年モデル】

“Serious Touring Bike” That Will Make You Want to Travel | A Thorough Look at the MARIN FOUR CORNERS [2026 Model]

October 1, 2025

If you're serious about long-distance touring and bikepacking, the MARIN FOUR CORNERS is the bike for you. It's a touring bike designed specifically for "traveling."

Rather than tackling gravel aggressively, it's made for carrying luggage and riding endlessly. Its appeal lies in its geometry, comfortable riding position, and highly expandable equipment configuration, all perfectly suited for this style of travel.

This bike offers the stability and flexibility unique to a chromoly frame, a reliable set of components, and 40 years of MTB brand expertise. From paved roads to unpaved trails, the FOUR CORNERS offers you "travel without limits."

- Table of Contents -

"About the Model, Price, and Size"
"A Bike for Enjoying the Journey, Not Just the Ride"
"Component Selection Optimized for Long Tours"
"Summary: Why the FOUR CORNERS is Called a 'Travel Bike'"

2026. MARIN FOUR CORNERS 1

【Manufacturer's Suggested Retail Price】￥165,000 (tax included)
【Colors (2 options)】Matte Black / Silver, Gloss Tan Maroon
【Sizes (Approximate Height Range)】S 650b (157-168cm), M 700c (168-178cm)

A Bike for Enjoying the Journey, Not Just the Ride

The MARIN "FOUR CORNERS" is a bike that strongly emphasizes "travel" rather than being an active gravel bike.

As shown in the official manufacturer's images, it's designed to carry a lot of luggage and powerfully traverse various surfaces, from paved to unpaved roads. It's truly a bike that sparks a sense of adventure, built with touring and long-distance rides in mind.

Compared to other gravel road bikes in the same category, it features a longer head tube, which allows for a more upright riding position. This reduces physical strain during long rides, supporting a less fatiguing and more comfortable touring experience.

The longer wheelbase provides excellent stability when riding straight. This design prevents wobbling even when carrying luggage, ensuring a secure ride during long-distance tours and on unpaved roads.

Emphasizing practicality as a touring bike, the frame is equipped with numerous bolt mounts for attaching carriers, racks, and fenders. This offers high freedom in luggage capacity and equipment, allowing for customization to suit various uses.

Additionally, it's designed to allow for replacement with an internally routed dropper seatpost, making it widely enjoyable.

Rather than enjoying the ride, it's about savoring the time spent – the FOUR CORNERS is a touring bike that supports such journeys. No rush, no haste, just at your own pace, going far. It's a model with clever features throughout, designed for comfortable long-distance riding.

Frame Geometry

Frame Size	S-422	M-462
HA	70	71
SA	73.5	73.5
TT	553	586
HT	188	188
FC
RC	432	450
BB	53.5	72
FO	43	49
WB	1047	1087
SH	707	745
SK	580	618
RH	381	403.3
Suggested Height	157-168	168-178

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Component Selection Optimized for Long Tours

The basic specifications feature MicroSHIFT Sword (2x9 speed).

With a setup that thoroughly prioritizes durability, ease of maintenance, and price balance, all essential for a touring bike, it's a reliable companion for your journeys.

The brakes utilize TRP's opposed-piston mechanical disc brakes. While they may not offer the delicate modulation of hydraulic discs, they provide ample stopping power and control, making them a popular caliper choice.

Furthermore, being cable-actuated, they are easier to maintain and troubleshoot on the go, which is a great advantage for touring. It's a braking system perfectly suited for touring.

The tires feature a center slick pattern, making them suitable for both on-road and off-road conditions. They roll lightly on paved roads and provide solid grip on unpaved surfaces, an all-rounder ideal for touring.

Also, it's important to note that the wheel diameter varies by size. The S size uses 650x45, while M size and up use 700x45, designed to provide optimal balance according to the frame size.

Behind its rugged appearance lies a selection of components focused on practicality. It can ride on any surface and be repaired on the go. This "just right" reliability is one of the charms of the FOUR CORNERS.

Specifications

Tire Size	700/650x45
Gears	2×9 speed
Pedals	Included
Specs	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
	Crankset	Forged Aluminum, 46-29T
	BB	Square Taper, Sealed Bearing
	Front Derailleur	MicroSHIFT Sword Black
	Rear Derailleur	MicroSHIFT Sword Black, 9-Speed
	Shifters	MicroSHIFT Sword Black, 2x9-Speed
	Cassette	Forged Aluminum, 46-29T
	Brake Levers	MicroSHIFT Sword w/ Integrated Shifters
	Brakes	Tektro Spyre-C Road Mechanical Disc, 160mm Rotor
	Tires	Vee Tire Co., QuikStyk, Wire Bead, 700/650x45
	Wheels	Marin Aluminum, Double Wall, Disc Specific Forged Aluminum Alloy, Disc, 32H 14g Black Stainless Steel
	Handlebar	Marin Butted Alloy, Compact 16º Flared Drop
	Stem	Marin 3D Forged Alloy
	Headset	FSA No.8D, Sealed Cartridge Bearings
	Saddle	Marin MTB
	Seatpost	Marin Alloy, 27.2mm

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Summary: Why the FOUR CORNERS is Called a "Travel Bike"

Touring bike designed more for "travel" than gravel riding
Upright riding position for comfortable long rides
Long wheelbase for excellent stability even with luggage
Reliable equipment including MicroSHIFT Sword and TRP brakes
Numerous braze-ons & 45c tires for serious bikepacking

Riding hard on paved roads, veering off onto forest trails on a whim, and cruising along a riverside at sunset. The MARIN FOUR CORNERS is there to support such free-spirited journeys.

The double-butted chromoly frame and chromoly fork that smoothly absorb shocks.

Its design, which maintains stability even when carrying bulky luggage, truly earns it the title of a "real touring bike."

The combination of 45c volume tires and 18-speed gearing ensures it handles off-road climbs with ease.

Backed by 40 years of MTB development know-how, the FOUR CORNERS offers you "road options" for your travels—whether it's serious touring, bikepacking, or weekend gravel rides.

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