Marin Four Corners 2 2025 - Gravel Bike
Don’t be fooled, that classic frame material doesn’t mean low-tech. We’ve used biometric fit data to offer five different frame sizes, with size-matched 650b or 700C wheels to perfectly suit riders between 4’11” – 6’4”. 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.
40mm wide multi-surface Vee GP tires are 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.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Series 3 Double Butted CrMo, Size-Specific Wheels (XS, S = 650B, M, L, XL = 700C) , Biometric Geometry, Fender and Rack Mounts, Thru-Axle, Flat Mount 160 Disc Mount |
| Fork | Series 3 CrMo, Thru-Axle, Flat Mount 160 Disc Mount, Fender, Rack, and Bottle Cage Eyelets |
| Headset | FSA No.42/ACB |
| Stem | Marin 3D Forged Alloy |
| Bars | Marin Butted Alloy, Compact 16º Flared Drop |
| Front Brake | SRAM Apex 1 Flat-Mount Hydraulic Disc, 160mm Rotor |
| Rear Brake | SRAM Apex 1 Flat-Mount Hydraulic Disc, 160mm Rotor |
| Brake Lever | SRAM Apex 1 1x12-Speed |
| Rear Mech | SRAM Apex 1 12-Speed |
| Shifters | SRAM Apex 1 12-Speed |
| Speed | 12 |
| Rims | Marin Aluminum Double Wall, 25mm Inner, Disc Specific, Tubeless-Compatible |
| Front Hub | Forged Aluminum Alloy, Disc, 32H |
| Rear Hub | Forged Aluminum Alloy, Disc, 32H |
| Spokes | 14g Black Stainless Steel |
| Front Tyre | Vee Tire Co., Rocket Man, 650/700x44, Tubeless-Compatible |
| Rear Tyre | Vee Tire Co., Rocket Man, 650/700x44, Tubeless-Compatible |
| Seat Post | Marin Alloy, 27.2mm |
| Saddle | Marin Beyond Road Concept |
| Chainset | SRAM Apex 1, 40T |
| Bottom Bracket | SRAM DUB BSA |
| Chain | Sram NX |
| Cassette | SRAM CS-XG-1275, 10-52T |
| Pedals | Marin Oso OEM Nylon Platform |
See the table below to find the right size.
Gravel Bike Bike Sizing
XXS (44)
4'8"
5'1"
XS (48)
5'1"
5'4"
S (51)
5'4"
5'7"
M (54)
5'7"
5'10"
L (56)
5'10"
6'0"
XL (58)
6'0"
6'3"
XXL (60)
6'3"
6'5"
XXXL (62)
6'5"
6'9"
Read our bike size guide for more information on sizing.
|
Height |
Size |
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4’8” / 143cm |
44 (XXS) |
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4’9” / 145cm |
44 (XXS) |
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4’10” / 148cm |
44 (XXS) |
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4’11” / 150cm |
44 (XXS) |
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5’0” / 152cm |
44 (XXS) |
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5’1” / 155cm |
44 (XXS) |
48 (XS) |
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5’2” / 158cm |
|
48 (XS) |
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5’3” / 160cm |
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48 (XS) |
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5’4” / 163cm |
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48 (XS) |
51 (S) |
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5’5” / 165cm |
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51 (S) |
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5’6” / 168cm |
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51 (S) |
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5’7” / 170cm |
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51 (S) |
54 (M) |
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5’8” / 173cm |
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54 (M) |
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5’9” / 175cm |
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54 (M) |
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5’10” / 178cm |
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54 (M) |
56 (L) |
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5’11” / 180cm |
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56 (L) |
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6’0” / 183cm |
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56 (L) |
58 (XL) |
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6’1” / 185cm |
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58 (XL) |
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6’2” / 188cm |
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58 (XL) |
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6’3” / 191cm |
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58 (XL) |
60 (XXL) |
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6’4” / 193cm |
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60 (XXL) |
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6’5” / 196cm |
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60 (XXL) |
62 (XXXL) |
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6’6” / 198cm |
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62 (XXXL) |
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6’7” / 201cm |
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62 (XXXL) |
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6’8” / 203cm |
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62 (XXXL) |
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6’9” / 205cm |
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62 (XXXL) |
Read our bike size guide for more information on sizing.
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