Four Corners

2021 Marin Four Corners profile, black. 2021 Marin Four Corners profile, green.

See this bike in a different color:

  • Price: $1,099.00*
  • Wheel Size: 650B, 700C
  • Frame: CroMo/Steel
  • Size Range: XS, S, M, L, XL

Manufacturer’s suggested retail price may not include additional shipping or preparation charges. Please contact your local Marin dealer for a quote.

TOURING

BIKEPACKING

DEDICATED COMMUTING

The Four Corners is built for the adventure rider looking to explore deep off of the beaten path, sleep outdoors, and be ready for whatever pavement, dirt road, or light singletrack is around the next corner. The heads-up bar position and generous braze-ons that make it possible to live on the bike for days at a time are equally at home on the daily commute

Specifications

  • Frame

    Utilitour Double Butted CrMo, Size-Specific Wheels (XS, S = 650B, M, L, XL = 700C) , Biometric Geometry, Fender and Rack Mounts, Disc Mount

  • Fork

    CrMo, Fender, Rack, and Bottle Cage Eyelets, IS Disc Mount

  • Rims

    Marin Aluminum, Double Wall, Disc Specific

  • Hub, Rear

    Forged Aluminum Alloy, 32H

  • Hub, Front

    Forged Aluminum Alloy, 32H

  • Spoke, Nipples

    14g Black Stainless Steel

  • Tires

    WTB Resolute, 650B/700Cx42mm, Puncture Protection

  • Derailleur, Rear

    Shimano Sora 9-Speed

  • Derailleur, Front

    Shimano Sora

  • Shift Lever

    Shimano Sora 3x9-Speed

  • Crankset

    Shimano Sora Hollowtech II, 50/39/30T

  • Bottom Bracket

    Shimano Hollowtech II

  • Chain

    KMC X9

  • Cassette

    Shimano HG300 9-Speed, 11-34T

  • Brake, Front

    Tektro Spyre-C Road Mechanical Disc, 160mm Rotor

  • Brake, Rear

    Tektro Spyre-C Road Mechanical Disc, 160mm Rotor

  • Brake Levers

    Shimano w/ Integrated Shifters

  • Handlebar

    Marin Butted Alloy, Compact 12º 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

    Trekking Platform

Geometry

Four Corners geometry diagram
XS S M L XL
Stack 560 580 617 646.3 677.6
Reach 376.7 381 403.3 412.6 426.6
Head Tube Angle 70.5° 70.5° 71.5° 71.5° 71.5°
Head Tube Length 177 198 198 229 262
Seat Tube Angle 74.5° 73.5° 73.5° 72.5° 72°
Seat Tube Length 381 422 462 495 528
Top Tube Effective 532 552.8 586.1 616.4 646.8
BB Height 285 285 285 285 285
BB Drop 53.5 53.5 72 72 72
Chain Stay 432 432 450 450 450
Wheel Base 1030.4 1041.8 1081 1100 1125.1
Stand Over Height 666.55 706.38 744.53 777.26 809.8
Fork Offset 43 43 49 49 49
Seat Post Diameter 27.2 27.2 27.2 27.2 27.2
Handlebar Width 400 400 420 440 440
Stem Length 70 70 70 70 70
Crank Length 170 170 170 175 175

All lengths in millimeters

Technology

Four Corners frame detail, showing seattube and rear wheel

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.

Four Corners fork and gear mount

BOTTLE / GEAR MOUNTS

Fork leg bottle or accessory cage mounts on the base Four Corners, along with traditional front triangle bottle mounts (three on sizes M-XL, two on XS-S) provide up to six bottle cage mounts total.

Four Corners rear dropout and brake mount

DISC BRAKES

Disc brakes provide smooth, controlled stopping in all conditions with minimal maintenance.

STEEL IS REAL

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

Learn More

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