Bike Comparison
    Bolinas Ridge 12020 Marin
    Recommended
    Roam Disc 42024 Giant
    MSRP
    		$429$650
    Where to Buy
    —
    $1

    At

    $650

    At Giant

    $649

    At Mike’s Bikes

    Category
    		HybridHybrid
    3.5
    3.8
    Frame
    		AluminumAluminum
    Fork
    		Suntour XCESuntour NEX
    Wheels
    		AluminumAluminum
    Wheel Size
    		650b700c
    Brakes
    		Mechanical DiscMechanical Disc
    Groupset
    		TourneyTourney, Altus
    Drivetrain
    		3 × 72 × 7
    Suspension
    		HardtailHardtail
    Front Travel
    		100mm63mm
    Brand Site

    marinbikes.com

    giant-bicycles.com

    Summary
    		The Marin Bolinas Ridge 1 is a 650b aluminum frame hybrid bike with mid-range components and mechanical disc brakes.
    Similar Bikes
    Accessories
    Gear Range

    A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

    Lowest gear

    (climbing)

    31 mph

    2020 Bolinas Ridge 1

    33 mph

    2024 Roam Disc 4

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    Bolinas Ridge 12020 Marin
    Roam Disc 42024 Giant
    Frame

    Series 1 6061 Aluminum, 27.5”/29" Wheels, Low Standover, 68mm BB shell, 135mm Forged Dropouts, Chainstay Mounted Disc Brakes

    ALUXX-grade aluminum, disc

    Fork

    SR Suntour XCE Disc, 100mm Travel, Preload Adjustment, 46mm Offset

    Travel: 63mm

    Spring Type: Coil

    SR Suntour NEX 700C, 63mm

    Travel: 63mm

    Spring Type: Coil

    Shock

    N/A

    Bottom Bracket

    Sealed Cartridge Bearings, Square Taper

    threaded

    Headset

    FSA No.10-P

    Stem

    Marin Alloy, 31.8 Bar Bore, 45mm

    Giant Sport, 8-degree S:60mm, M:70mm, L:80mm, XL:90mm

    Handlebar

    Marin 31.8 Riser, 12mm Rise, 780mm Width

    Giant Sport XC, 31.8mm S:64cm, M:68cm, L:68cm, XL:68cm

    Saddle

    Marin MTB

    ErgoContact

    Seatpost

    Marin Alloy, 27.2mm

    Giant D-Fuse, alloy, 350mm

    Pedals

    Nylon Platform

    platform

    Grips

    Marin Dual Density

    ErgoContact

    Groupset
    Rear Derailleur

    Shimano Tourney, 7-Speed

    Shimano Tourney

    Front Derailleur

    Shimano FD-TX500

    Shimano FD-TY606

    Crank

    Shimano FC-TY301, 42/34/24T

    forged alloy, 30/46 S:170mm, M:170mm, L:175mm, XL:175mm

    Shifters

    Shimano Tourney 3x7-Speed

    Shimano Altus, 2x7

    Cassette

    SunRace 7-Speed, 11-34T

    Shimano CS-HG200, 12x32

    Chain

    KMC Z51

    KMC Z7

    Brakes

    Power CX7 Mechanical Disc, Shimano Pad Compatible, 160mm Rotor

    Tektro TKD-172 mechanical, [F]160mm, [R]160mm rotors

    Brake Levers

    Shimano w/ Integrated Shifters

    Tektro TKD-172

    Wheels
    Rims

    Marin, Double Wall Alloy

    Giant double wall aluminum

    Spokes

    15g Black Stainless Steel

    stainless, 14g

    Front Hub

    Formula, 32H

    alloy, 32h

    Rear Hub

    Formula, 32H

    alloy, 32h

    Tires

    MTB, 27.5/29x2.25"

    Giant CrossCut, anti-puncture, 700x42c

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