Marin Four Corners 1 700c Bike 2026Go anywhere. Carry everything. The Marin Four Corners 1 is the adventure bike that doesn't try to overthink it. A custom-butted 4130 Cr Mo steel frame and matching steel fork are genuinely comfortable under load - steel soaks up road buzz and gravel chatter in a way aluminum simply can't - while staying tough enough for multi-day bikepacking with a full kit strapped on. Wheel size matches frame size for a proportional ride: XS and Small roll on 650b, while Medium through XL get 700c. A Shimano CUES 2x9 drivetrain covers loaded climbs and flat miles with ease, Tektro mechanical disc brakes keep stopping power simple and serviceable, and a stacked mount list means you can configure this bike for just about any kind of adventure. Features Custom-butted 4130 Cr Mo steel frame and fork - tough, compliant, and comfortable over long miles with a full load; butted tubing keeps weight in check without giving up strength Shimano CUES 2x9 drivetrain with 46/32T chainrings and 11-36T cassette, with a wide range for loaded climbs and fast flats, without unnecessary complexity Tektro mechanical disc brakesreliable, easy to adjust and maintain roadside, in any conditions Comprehensive mount packagebottle and accessory bosses, top tube mounts, front and rear rack mounts, fender bosses, and fork mounts for maximum carrying versatility45mm wide tires with clearance for wider rubber - ready for mixed surfaces from day one SPECIFICATIONSFrame Custom-Butted 4130 Cr Mo Steel, Rack Mounts, Fender Mounts, Top Tube Mounts, Internal Cable Routing Fork Marin 4130 Cr Mo Steel, Rack Mounts, Fender Mounts, Fork Cargo Mounts Headset VP-A74, 1-1/8" to 1. 5" Tapered Front Derailleur Shimano CUES FD-U4000-D, 2x9-Speed Rear Derailleur Shimano CUES RD-U4000, 9-Speed Shifters Shimano CUES ST-U4020, 2x9-Speed Crankset Shimano CUES FC-U4000-2, 46/32TBottom Bracket Shimano BB-UN300, 68mm, Square Taper Chain Shimano CN-LG500, Link Glide, 9-Speed Cassette Shimano CUES CS-LG400-9, 11-36T, 9-Speed Brakes Tektro MD-M300 Mechanical Disc, 160mm Rotors (Front and Rear)Wheelset Marin Aluminum Double Wall, 32H, Tubeless Compatible Front Hub Formula DC-20, 100x9mm QR, 32HRear Hub Formula DC-22, 135x9mm QR, 32H, Shimano Standard Freehub Body Spokes14g Black Stainless Steel Tires Marin 700x45c (M-XL) Wire Bead Handlebar Marin Albatross, 6061 Alloy Stem Marin 3D Forged Alloy, 70mm, All Sizes Grips Marin Ergonomic Lock-On Seatpost Marin Alloy, 27. 2mm Saddle Marin Speed Concept Pedals Alloy Platform Intended Use Gravel, Adventure, Bikepacking, Commuting Note: Components are subject to change without notice. METRICINCHMarin Four Corners 1Size XS (650b)S (650b)M (700c)L (700c)XL (700c)A: Seat Tube Length381422462495528B: Effective Top Tube532553586617647C: Stack560580618648679D: Reach377381403413427F: BB Drop5454727272G: Head Tube Length167188188209252H: Head Tube Angle70 deg70 deg71 deg71 deg71 degI: Seat Tube Angle74. 5 deg73. 5 deg73. 5 deg72. 5 deg72. 0 degJ: Standover Height668707745777810K: Chainstay Length432432450450450L: Wheelbase10351047108711071132Stem Length70 mm70 mm70 mm70 mm70 mm Handlebar Width400 mm400 mm420 mm420 mm440 mm Crank Arm Length170 mm170 mm175 mm175 mm175 mm Marin Four Corners 1Size XS (650b)S (650b)M (700c)L (700c)XL (700c)A: Seat Tube Length15. 016. 618. 219. 520. 8B: Effective Top Tube20. 921. 823. 124. 325. 5C: Stack22. 022. 824. 325. 526. 7D: Reach14. 815. 015. 916. 316. 8F: BB Drop2. 12. 12. 82. 82. 8G: Head Tube Length6. 67. 47. 48. 29. 9H: Head Tube Angle70 deg70 deg71 deg71 deg71 degI: Seat Tube Angle74. 5 deg73. 5 deg73. 5 deg72. 5 deg72. 0 degJ: Standover Height26. 327. 829. 330. 631. 9K: Chainstay Length17. 017. 017. 717. 717. 7L: Wheelbase40. 741. 242. 843. 644. 6Stem Length70 mm70 mm70 mm70 mm70 mm Handlebar Width400 mm400 mm420 mm420 mm440 mm Crank Arm Length170 mm170 mm175 mm175 mm175 mm | Marin Bikes | Four Corners 1 700C Bike | Green | L | Rubber