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    ECR2017 Surly
    Recommended
    MSRP
    Where to Buy
    —
    $1

    At

    Category
    		Gravel
    Weight
    		2.5 lbs (frame)
    3.1
    Frame
    		Steel
    		Steel
    Wheels
    		Aluminum
    Wheel Size
    		29″
    		Avid Mechanical Disc
    		SLX, Deore
    Drivetrain
    		2 × 10
    Brand Site
    Summary
    		The Surly ECR is a steel frame gravel bike with upper mid-range components and avid mechanical disc brakes.

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    Insights
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    Terrain
    smoothrugged
    ECR
    Other Gravel bikes
    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)

    28 mph

    ECR

    Highest gear

    (descending)

    Geometry
    Specs
    ECR2017 Surly
    Frame

    Surly ECR, 100% Surly 4130 CroMoly steel. ED coated. Double-butted main triangle. TIG-welded

    BB Standard: BSA, 73mm, Threaded

    Fork

    Surly ECR, TIG-welded custom-butted 4130 CroMoly, 80mm suspension corrected, 1-1/8˝ steerer tube, 203mm disc brake clearance

    Bottom Bracket

    73mm shell width, threaded standard English (1.37˝ x 24t)

    Headset

    Cane Creek, 40 series

    Stem

    Kalloy AS-025N, 31.8, 4-bolt, black

    Handlebar

    Jones Loop, 710mm. Anodized. Black

    Saddle

    Velo VL2155, Steel rail

    Seatpost

    Kalloy SP-342

    Type: Rigid

    Groupset
    Rear Derailleur

    Shimano DeoreLX RD-T670 SGS, 10-speed

    Front Derailleur

    Shimano SLX FD-M676D, Problem Solvers direct mount adaptor (31.8mm)

    Crank

    Surly O.D., 22/36t

    Shifters

    Microshift SL-M10, 10-speed

    Cassette

    Shimano HG50-10, 10-speed, 11– 36t

    Chain

    KMC X10, Silver

    Brakes

    Avid BB7, HS rotors. 180/160mm front & rear

    Type: Avid Mechanical Disc

    Brake Levers

    Avid FR-5, Black

    Wheels
    Rims

    Surly Rabbit Hole, 29+

    Spokes

    DT Swiss Comp, 2.0/1.8 Black spokes/Silver brass nipples

    Front Hub

    Surly Ultra New Disc, 32h. 6-bolt disc. Black

    Rear Hub

    Shimano FH-M525, 32h disc. Black

    Tires

    Surly Knard 29 x 3.0˝, 27tpi

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