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Surly Bikes

BK1861

Surly Midnight Special - Black

When you buy a bike from Aventuron, not only will your bike ship for free, but you will receive a bike that is ready to ride out of the box.

We assemble and tune your bike, then repackage it to ship. When you receive your new bike it will be very easy to assemble.  You will have to attach the front wheel, handlebar, seatpost and pedals. Most bikes do not include pedals, but we have an extensive pedal selection.  We are a family-owned and operated business and look forward to having you as a customer.

The Midnight Special is a road plus bike designed to provide comfort and speed on those all-day rides that extend well beyond fresh pavement. It excels on pot-holed, deteriorating pavement and the occasional long stretch of gravel. The Midnight Special’s 650b road plus tires eat up road chatter and absorb all the bumps in the road for a much more comfortable ride.

  • 100% Surly 4130 CroMoly frame, main triangle is double-butted; 1-1/8" threadless CroMoly fork
  • Rack, fender, and three sets of water bottle mounts
  • Flat-Mount disc brakes
  • 44mm head tube
  • Tire Clearance: 27.5x2.35" (w/o fenders), 700c x 42mm (w/o fenders), 650b x 50 (w/ fenders), 700c x 38mm (w/ fenders)

    Frameset

    Frame

    Surly Midnight Special, 4130 CroMoly, double-butted main triangle, ED coated, TIG-welded

    Fork

    Surly Midnight Special, 4130 CroMoly,, ED coated, TIG-welded

    Drivetrain

    Crankset

    SRAM Rival 1 40T

    Bottom Bracket

    SRAM GXP

    Front Derailleur

    n/a

    Rear Derailleur

    SRAM Rival 1

    Cassette / Cog

    SunRace 11-42t

    Chain

    KMC X11, 11 speed

    Components

    Grips / Bar Tape

    Black Cork

    Handlebar

    Salsa Cowbell 3

    Stem

    ProMax, 31.8 4 bolt

    Headset

    Cane Creek 40

    Shifters

    SRAM Rival 1

    Brake Levers

    SRAM Rival 1

    Brakes

    TRP Spyre

    Rotors

    160mm

    Saddle

    WTB Volt Sport

    Seatclamp

    30.0mm Surly Stainless

    Seatpost

    ProMax SP-2019 27.2x300mm non-offset (for 40-50) Black
    ProMax SP-2016 27.2x300mm offset (for 54-64cm) Black

    Wheels

    Front Hub

    Novatech D791, 12mm Thru, 32H

    Rear Hub

    Novatech D792, 142mm Thru, 32H

    Front Thru Axle / QR

    Thru Axle

    Rear Thru Axle / QR

    Thru Axle

    Rims

    Alex Adventurer 2, Tubeless ready, 32H

    Tires

    WTB Horizon, 650b x 47, tan wall

    Tubes

    included

    Other

    Pedals

    N/A

    Misc

    -

    * Specifications are subject to change without notice

    Geometry



    Frame measurements (mm) 40cm 46cm 50cm 54cm 56cm 58cm 60cm 64cm
    A. BB Drop 70 70 65 65 65 65 65 65
    B. Chainstay Length 425 425 425 425 425 425 425 425
    C. Fork Length - Axle to Crown 400 400 400 400 400 400 400 400
    D. Fork Offset 50 50 50 50 40 40 40 40
    E. Head Tube Angle (deg) 71.0 71.5 72.0 72.5 73.0 73.0 73.5 74.0
    F. Headtube Length 95 100 110 125 140 160 180 200
    G. Reach 363 366 379 389 393 402 409 423
    H. Seat Tube Angle (deg) 75.5 74.0 73.5 73.5 73.0 73.0 72.5 72.5
    I. Seat Tube Length - Center to Top 400 460 500 540 560 580 600 640
    J. Stack 531 538 544 560 580 599 620 641
    K. Standover 720 751 778 806 827 846 866 895
    L. Top Tube Length (Effective) 500 520 540 555 570 585 605 625
    M. Wheelbase 993 994 1007 1018 1012 1027 1036 1050
                     
    Component measurements (mm)
    Crank Arm Length 165 170 170 175 175 175 175 175
    Handlebar Width 400 400 400 420 440 440 460 460
    Handlebar Rise / Drop - - - - - - - -
    Stem Length 70 80 80 100 100 120 120 120
    Stem Angle (deg) 7 7 7 7 7 7 7 7

    * All dimensions are preliminary and subject to change


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