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

Specifications

Build Kit

Frameset

Frame

Surly Preamble - 100% Surly Chromoly steel, Natch tubing, double-butted main triangle, TIG welded, E.D. coated

Color

Hi-Viz Black

Fork

Surly Preamble - 100% Surly Chromoly steel, Natch tubing, double-butted tapered fork blades, TIG welded, E.D. coated

Components

Headset

FSA Orbit MX

Seatpost Clamp

Surly Stainless 30.0

Seatpost

Kalloy 27.2 x 300mm: 0 offset (XS-MD), 12mm offset (LG-XL)

Stem

Kalloy AL 31.8mm

Grips/Bar Tape

Velo Black

Saddle

WTB Volt Wide

Handlebar

Kalloy AL, 9 degree backsweep, 35mm rise

Drivetrain

Front Derailleur

N/A

Rear Derailleur

Shimano Cues U4000 GS

Cassette

Shimano Cues LG400, 11-46t, 9spd

Chain

Shimano LG500

Crankset

Shimano Cues U4000, 40T

Shifter

Shimano Cues U4000

Brake Levers

Tektro HD-M275 OR Tektro HD-M3120

Brake Calipers

Tektro HD-M275 OR Tektro HD-M3120, 2 Piston

Bottom Bracket

Shimano UN101, 68mm BSA

Rotors

Tektro 160/160mm, Center Lock

Wheels

Front Tire

-SM), Tan Sidewalls
Teravail Washburn 700c x 35, 30tpi, Wire Bead (MD-XL), Tan Sidewalls

Rear Tire

Teravail Washburn 650b x 35, 30tpi, Wire Bead (XS-SM), Tan Sidewalls
Teravail Washburn 700c x 35, 30tpi, Wire Bead (MD-XL), Tan Sidewalls

Front Hub

Shimano MT200 QR x 100mm, Center Lock, 32h

Rear Hub

Shimano QC400 QR x 141mm, Center Lock, 32h

Spoke

14G Black

Rim

Shining DB-21, 32h

Weight

Complete Bike

27 lb 7 oz for Medium

*Specifications are subject to change without notice

Geometry

Geometry Diagram
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 170.0 170.0 170.0 175.0 175.0
Handlebar Width 700.0 700.0 720.0 720.0 720.0
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 90.0 90.0 100.0 100.0