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Surly Preamble Flat Bar Bike 650b Skyrim Blue

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This product is shipped only in the U.S.
  • Model: Preamble Flat Bar Bike – Skyrim Blue
  • Brand: Surly
  • Imported
  • Free Shipping
Stock availability can be changed at any time
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Surly Preamble Flat Bar Bike 650b Skyrim Blue

Designed to introduce unfamiliar riders to Surly’s pavement and gravel line, Preamble highlights Surly’s most essential features: Durable custom steel tubing, a renowned ride feel, and just the right mounts for running racks, fenders, and bottle cages. Available in flat-bar and drop-bar configurations, it’s disc-brake specific and shares a single-position vertical dropout with Surly Bridge Club. For new weekend riders and veteran commuters, Preamble makes it easier than ever to get out of the car and on top of tough and comfortable Chromoly steel.

  • 100% Surly Chromoly steel frame and fork; double-butted main triangle
  • Five frame sizes to fit nearly every size rider (XS, S, M, L, XL), with a slightly sloped top tube on XS and Small frames for improved standover and comfort
  • Friendly with 1x and 2x drivetrains
  • Mounts for racks, fenders, and two bottle cages (located on the seat tube and down tube)
  • Clearance for 650b x 41mm tires on XS–S frame sizes (with or without fenders); 700c x 41mm tires on M–XL frame sizes (with or without fenders)


Surly bike100% Surly Chromoly Natch Steel Tube Frame:

  • Preamble is built with Surly’s ‘Natch steel tubing to delivery the “Surly Ride Feel” that riders have come to expect
  • Custom-cast single-position vertical dropout, as seen on the Bridge Club
  • Fender and rack compatibility with mounts for two bottle cages on all frame sizes
  • Tried-and-true QR axles front and rear for fast, tool-free wheel removal


Versatile Geometry:Surly bike

  • Frame geometry designed to play well with both flat and drop bars
  • Compatible with 1x and 2x drivetrains
  • Five easy-to-understand frame sizes to fit nearly every size of rider
  • Slightly sloped top tube on XS and small frames for improved standover
  • Clearance for 650b x 41mm tires (XS–S) and 700c x 41mm tires (M–XL) with or without fenders



Surly Preamble Flat Bar Bike 650b Skyrim Blue

  • Fork Material: Steel
  • Color: Skyrim Blue
  • Wheel Size: 650b
  • Brake Type: Disc
  • Platform: Preamble
  • Fork Type: Rigid
  • Rear Axle: QR x 138mm
  • Frame Material: Steel
  • TT (Effective):
    X-Small: 500
  • Defined Color: Blue
  • Mfg Size: X-Small/Small/Medium/Large/X-Large
  • Front Axle: QR x 100mm
  • Frame Type: Rigid


Frame: Surly Preamble, 100% Chromoly steel tubing, E.D. coated

Fork: Surly Preamble, 100% Chromoly steel fork, Disc Only

Color: Skyrim Blue

Seatpost Clamp: Surly Stainless 30.0


Front Derailleur: N/A

Rear Derailleur: microSHIFT RD-M5185M

Cassette / Cog: microSHIFT 12-42t, 8-speed

Chain: KMC Z8.3

Crankset: Samox, 3-piece, 40t

Shifter: microSHIFT Acolyte Xpress

Brakes Levers: Avid FR-5

Brakes: Avid BB5 Mechanical

Rotors: SRAM 160mm, front and rear


Headset: VP 1-1/8″ Threadless

Stem: Kalloy 31.8

Handlebar: Kalloy, 35mm rise, 9-degree backsweep

Grips / Bar Tape: Black Rubber

Seatpost: Kalloy 27.2 x 300mm

Saddle: Selle Italia X Base


Front Hub: Novatec, 6-bolt disc, 32h, QR

Rear Hub: Novatec, 6-bolt disc, 32h, QR

Rims: 21mm, 32h

Tires: Kenda Kwik Tendril 700c x 35mm (MD/LG/XL sizes) & Kenda Standard 650b x 1.35 (XS/SM sizes)


Pedals: N/A

* Specifications are subject to change without notice


bike geometry

Frame measurements (mm) XS SM MD LG XL
A. BB Drop 54 54 66 66 66
B. Chainstay Length 420 420 435 435 435
C. Fork Length – Axle to Crown 380 380 400 400 400
D. Fork Offset 47 47 44 44 44
E. Head Tube Angle (deg) 70 71 72 72 72
F. Headtube Length 120 135 130 170 210
G. Reach 352 381 391 404 421
H. Seat Tube Angle (deg) 74.0 73.0 72.5 72.0 72.0
I. Seat Tube Length – Center to Top 410 505 565 605 645
J. Stack 517 535 567 605 643
K. Standover 722 776 826 863 901
L. Top Tube Length (Effective) 500 545 570 600 630
M. Wheelbase 987 1013 1030 1055 1085
Component measurements (mm)
Crank Arm Length 165 170 170 175 175
Handlebar Width 700 700 720 720 720
Stem Length 80 90 90 100 100
Stem Angle 7 7 7 7 7

* All dimensions are preliminary and subject to change

Additional information






X-Small, Small, Medium, Large, X-Large