Surly Preamble Flat Bar Bike (Skyrim Blue) (650b) (XS)

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Surly Preamble Flat Bar Bike (Skyrim Blue) (650b) (XS)
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Surly Preamble Flat Bar Bike Description:

The Preamble Flat Bar Bike is Surly's take on an affordable, comfortable, and serious do-it-all-bike that has everything riders need and nothing they don't. Classic steel frame soaks up the bumps while being incredibly durable. The simplicity of a 1X drivetrain, time-proven reliable Avid mechanical disc brakes, and a comfortable upright geometry all contribute to a highly versatile bike for commuting, gravel roads, light touring, and plain ole pavement shenanigans.


  • 100% Surly Chromoly steel frame and fork dampen road vibration
  • Clearance for 650b x 41mm tires on XS/S and 700 x 41mm tires on M - XL (with or without fenders)
  • Fender and rack compatibility with mounts for two bottle cages on all frame sizes
  • Powerful, trouble-free Avid BB5 mechanical disc brakes
  • Simple and efficient 1x drivetrain


  • Frame: 100% Surly Chromoly Steel, Natch Tubing, Double-Butted Main Triangle, TIG Welded, E.D. Coated (10 x 138mm Surly Gnot Boost Quick Release)
  • Fork: 100% Surly Chromoly Natch Steel (10 x 100mm)
  • Handlebar: Kalloy (35mm Rise) (9° Backsweep)
  • Grips/Tape: Black Rubber
  • Stem: Kalloy (31.8mm)
  • Headset: VP 1-1/8" Threadless
  • Levers: Avid FR-5
  • Shifter: microSHIFT Acolyte Xpress (8 Speed)
  • Brakes: Avid BB5 Mechanical
  • Rotors: SRAM (160mm Front and Rear)
  • Crankset: Samax (3-piece)
  • Bottom Bracket: JIS (68 x 124.5mm)
  • Pedals: -
  • Chain: KMC Z8.3 (8 Speed)
  • Chainring: 40T
  • Cassette: microSHIFT (12-42T) (8 Speed)
  • Front Derailleur: -
  • Rear Derailleur: microSHIFT RD-M5185M (8 Speed)
  • Front Hub: Novatec (6-Bolt) (32H)
  • Rear Hub: Novatec (6-Bolt) (32H)
  • Rims: 21mm Inner Rim Width (32H)
  • Saddle: Selle Italia X-Base
  • Seatpost: Kalloy (27.2 x 300mm)
  • Seat Clamp: Surly Stainless (30.0mm)
  • Tires: Kenda Kwik Tendril (650b x 1.35" | Size XS-S), (700 x 35mm | Size M-XL)
  • Weight: -

Assembly Note:

These bikes are fully built by our expert bike builders, then partially disassembled as needed for shipping. Bikes will arrive to you with some basic assembly still required.

This product was added to our catalog on March 6, 2023

Erik Ward
Verified Owner
Wednesday, Jun 21 2023 (about a year ago)
Surly Preamble Flat Bar Bike (Skyrim Blue) (700c) (L)
Very impressed with my first Surly. Partial assembly by Performance bike was excellent! The repacking and shipping was very well done. Sean D. with customer service was an absolute pleasure to work with! Thanks again…I will be a return customer!
Edgar Finn
Verified Owner
Tuesday, Apr 4 2023 (about a year ago)
Surly Preamble Flat Bar Bike (Skyrim Blue) (700c) (M)
Bought this bike based on my experience with my Surly Karate Monkey. I had been out of the saddle for the past 3 or 4 years, and needed a re-entry bike. This one fits the bill perfectly. Love Surly’s quality build and solid feel. Not the lightest bike around, but I’m not the lightest guy around either. Perfect bike for getting back in the saddle, or for commuting in style, or whatever. And, I love the Skyrim Blue.
Had an issue with the shipment of this bike, and Performance went above and beyond to rectify the problem with a single phone call. So, not only is the bike a winner, but customer service is superior. Maybe this bike’s not for everybody, but it’s perfect for me.

Sizing Recommendations for Riders Who Fall Between Sizes:

  • Sizing down will provide a more maneuverable ride while sizing up will provide more stability
Rider Height (Feet)Rider Height (CM)
XS5'0" - 5'5"152 - 165cm
S5'4" - 5'8"162 - 173cm
M5'7" - 6'0"170 - 183cm
L5'11" - 6'3"180 - 190cm
XL6'2" - 6'7"188 - 200cm

Note: All sizing recommendations are provided by the manufacturer and may differ for each rider.

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A. Bottom Bracket Drop54mm54mm66mm66mm66mm
B. Chainstay Length420mm420mm435mm435mm435mm
C. Fork Length380mm380mm400mm400mm400mm
D. Fork Offset47mm47mm44mm44mm44mm
E. Head Tube Angle70.0°71.0°72.0°72.0°72.0°
F. Head Tube Length120mm135mm130mm170mm210mm
G. Reach352mm381mm391mm404mm421mm
H. Seat Tube Angle74.0°73.0°72.5°72.0°72.0°
I. Seat Tube Length410mm480mm565mm605mm645mm
J. Stack517mm535mm567mm5605mm673mm
K. Standover722mm776mm826mm863mm901mm
L. Top Tube Length500mm545mm570mm600mm630mm
M. Wheelbase987mm1013mm1030mm1055mm1085mm
Stem Length80mm90mm90mm100mm100mm
Stem Angle
Handlebar Width700mm700mm720mm720mm720mm
Crank Length165mm170mm170mm175mm175mm
Fork Length380mm380mm400mm400mm400mm
Fork Rake47mm47mm44mm44mm44mm

Note: All measurements are provided by the manufacturer and may vary depending on how measurements are acquired.