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Surly

SURLY Preamble - Thorfrost White

SURLY Preamble - Thorfrost White

$1,099.00 USD
$1,199.00 USD $1,099.00 USD
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Size

Nothing More is Needed. Nothing Less Will Do.

The challenge was thus: Build a serious steel bike and give it only the attributes that matter most. Make it quick and comfortable on pavement, as well as confident and compliant on degraded surfaces. What the Enginerds put forth is Preamble, a pavement and gravel utility worker that proves you don’t need to cut corners or clip coupons to make a more affordable steel bike. You just need to keep shit simple.

Preamble can run racks and fenders and carry a couple water bottles. Surly was raised on stealing basic cable, after all. Smooth and efficient on asphalt, Preamble’s double-butted main triangle provides a resplendent ride feel and withstands abuse from life’s inevitable potholes. Make it your own with flat bars, drop bars, a basket, or bags. On the road to steel euphoria, Preamble is the gateway drug.

  • Let facts be submitted to a candid world: Offered in flat-bar and drop-bar configurations
  • Easy T-Shirt sizing to fit nearly every rider (XS,S,M,L,XL)
  • Sloping top tubes on XS and Small frames for improved standover and comfort
  • To offer the best rider experience for every frame size, XS and S frames get 650b wheelsets while M–XL get 700c
  • Custom-cast single-position vertical dropout

GEOMETRY

Size X-Small Small Medium Large X-Large
A. Effective Top Tube 500.0 545.0 570.0 600.0 630.0
B. Stand Over 722.0 776.0 826.0 863.0 901.0
C. Reach 352.0 381.0 391.0 404.0 421.0
D. Stack 517.0 535.0 567.0 605.0 643.0
E. Total Seat Tube Length 410.0 505.0 565.0 605.0 645.0
F. Headtube Length 120.0 135.0 130.0 170.0 210.0
G. Headtube Angle
70.0
71.0
72.0
72.0
72.0
H. Seat Tube Angle
74.0
73.0
72.5
72.0
72.0
I. BB Drop 54.0 54.0 66.0 66.0 66.0
K. Chainstay Length 420.0 420.0 435.0 435.0 435.0
L. Fork Length Axle to Crown 380.0 380.0 400.0 400.0 400.0
M. Fork Offset 47.0 47.0 44.0 44.0 44.0
N. Wheelbase 987.0 1013.0 1030.0 1055.0 1085.0
Crank Arm Length 165.0 170.0 170.0 175.0 175.0
Handlebar Width 380.0 400.0 420.0 440.0 460.0
Recommended Rider Height 152.4 - 165.1 162.56 - 172.72 170.18 - 182.88 180.34 - 190.5 187.96 - 200.66
Stem Length 80.0 80.0 90.0 100.0 100.0

Technical Specifications

Frameset

Frame

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

Color

Thorfrost White

Fork

Surly Preamble, 100% Chromoly steel fork, Disc Only

Components

Headset

VP 1-1/8" Threadless

Seatpost Clamp

Surly Stainless 30.0

Seatpost

Kalloy 27.2 x 300mm

Stem

Kalloy 31.8

Grips/Bar Tape

Black Cork

Saddle

Selle Italia X Base

Handlebar

Salsa Cowbell

Drivetrain

Front Derailleur

N/A

Rear Derailleur

microSHIFT RD-M46S

Cassette

microSHIFT 11-36t, 9-speed

Chain

KMC Z9

Crankset

Samox, 3-piece, 40t

Shifter

microSHIFT R400

Brake Levers

microSHIFT R400-L and R-490-R

Brake Calipers

Avid BB7 Mechanical

Bottom Bracket

Samox

Rotors

SRAM 160mm, front and rear

Wheels

Front Tire

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

Rear Tire

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

Front Hub

Novatec, 6-bolt disc, 32h, QR

Rear Hub

Novatec, 6-bolt disc, 32h, QR

Rim

21mm, 32h

*Specifications are subject to change without notice

Frame Specs

  • Design Wheel/Tire Sizes650b x 41mm: XS-SM frames
    700c x 41mm: MD-XL frames
  • Frame Construction100% Surly Chromoly steel, Natch tubing, double-butted main triangle, TIG welded, E.D. coated
  • Fork Construction4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated
  • Rigid Fork Length380mm: XS-SM
    400mm: MD-XL
  • Fork Offset47mm: XS-SM
    44mm: MD-XL
  • Rear Spacing"Gnot-Boost" 138mm
  • Rear Axle Size10 x 135mm or 10 x 141mm
  • Front Brake (Rotor)Disc - 51mm I.S. (203mm max rotor)
  • Headset - UpperEC34/28.6
  • Headset - LowerEC34/30
  • Front Spacing10 x 100mm
  • Steerer TubeØ28.6mm
  • Crown Race30mm (1-1/8")
  • SeatpostØ27.2mm
  • Dropper Post CompatibleNo
  • Seatpost ClampØ30.0mm
  • Front Derailleur ClampHigh direct mount top-pull (Ø28.6mm)
    26mm offset adapter (included) for 135mm rear hub spacing
    29mm offset adapter (not included) for 141mm rear hub spacing
  • Bottom Bracket68mm BSA, threaded
  • Crankset (Max Ring)1x (47CL): 42T
    2x (47CL): 46/36T
  • Bottle Mounts2 Standard
  • Fork MountsFork crown and mid-blade rack mounts
  • Front Fender MountsYes
  • Rear Fender MountsYes

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