SPECIFICATIONS
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FRAME
Series 1 6061 Aluminum, 27.5”/29″ Wheels, Low Standover, 68mm BB shell, 135mm Forged Dropouts, Chainstay Mounted Disc Brakes
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FRONT SUSPENSION
SR Suntour XCM DS, 100mm Travel, Preload Adjustment, 46mm Offset
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RIMS
Marin, Double Wall Alloy
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HUB, REAR
Forged Alloy, Disc, 32H
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HUB, FRONT
Forged Alloy, Disc, 32H
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SPOKE, NIPPLES
Black Stainless Steel
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TIRES
MTB, 27.5/29×2.25″
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DERAILLEUR, REAR
Shimano Altus, 8-Speed
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DERAILLEUR, FRONT
Shimano FD-TY700
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SHIFT LEVER
Shimano Altus 3×8-Speed
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CRANKSET
Alloy Crank, Steel Chainrings, 42/34/24T
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BOTTOM BRACKET
Sealed Cartridge Bearings, Square Taper
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CHAIN
KMC Z8
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CASSETTE
SunRace 8-Speed, 11-34T
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BRAKE, FRONT
Clark’s Clout Hydraulic Disc, 160mm Rotor
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BRAKE, REAR
Tektro M275 Hydraulic Disc, 160mm Rotor
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BRAKE LEVERS
Tektro M275 Hydraulic Disc
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HANDLEBAR
Marin 31.8 Riser, 12mm Rise, 780mm Width
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STEM
Marin Alloy, 31.8mm, 45mm
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GRIPS
Marin MTB, Closed End
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HEADSET
FSA No.10-P
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SEATPOST
Marin Alloy, 27.2mm
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SADDLE
Marin MTB
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PEDALS
Nylon Platform
Specifications, pricing, and availability are subject to change without notice.
GEOMETRY

XS | S | M (27.5) | M (29) | L | XL | |
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STACK | 580.8 | 585.5 | 590 | 616 | 620.5 | 625 |
REACH | 400 | 415 | 430 | 430 | 445 | 465 |
HEADTUBE ANGLE | 68.5° | 68.5° | 68.5° | 68° | 68° | 68° |
HEADTUBE LENGTH | 100 | 105 | 110 | 110 | 115 | 120 |
SEATTUBE ANGLE | 74° | 74° | 74° | 74° | 74° | 74° |
SEATTUBE LENGTH | 330 | 381 | 431 | 431 | 481 | 520 |
TOPTUBE EFFECTIVE | 566.5 | 583 | 599.2 | 606.6 | 623 | 644.2 |
BB HEIGHT | 307 | 307 | 307 | 311.5 | 311.5 | 311.5 |
BB DROP | 48 | 48 | 48 | 61 | 61 | 61 |
CHAINSTAY | 430 | 430 | 430 | 455 | 455 | 455 |
WHEELBASE | 1084.5 | 1101.3 | 1118.2 | 1160 | 1177 | 1199 |
STANDOVER HEIGHT | 649.11 | 663.03 | 706.24 | 716.44 | 744.89 | 773.66 |
FORK OFFSET | 44 | 44 | 44 | 51 | 51 | 51 |
SEATPOST DIAMETER | 27.2 | 27.2 | 27.2 | 27.2 | 27.2 | 27.2 |
HANDLEBAR WIDTH | 780 | 780 | 780 | 780 | 780 | 780 |
STEM LENGTH | 45 | 45 | 45 | 45 | 45 | 45 |
CRANK LENGTH | 170 | 170 | 170 | 170 | 170 | 170 |
All lengths in millimeters
TECHNOLOGY
SERIES 1 ALUMINUM FRAME
The Bolinas Ridge series has a disc specific Series 1 6061 aluminum frame with a replaceable derailleur hanger and an integrated headset.
Marin Sport geometry and 100mm of suspension travel blends easy handling, stability, and a lively and fun ride to ride anything from dirt paths to singletrack trail.

29” OR 27.5” WHEELS
The Bolinas Ridge is available with 27.5” or 29” wheels to optimize rider fit and trail experience. Sizes Small and Medium are available with 27.5” wheels to maximize standover, sizes Medium – XXL with 29” wheels best suited for taller riders.

DISC BRAKES
All Bolinas Ridge models feature disc brakes for minimal maintenance and all-conditions stopping power for the best in safety and control.

TRAIL READY COMPONENTS
The Bolinas Ridge line features durable double wall rims, serviceable cassette freehubs, proven Shimano drivetrains, and readily available parts that are built to last.
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