Surly Preamble Flat Bar Gravel Bike

Nothing More is Needed. Nothing Less Will Do.

The Surly Preamble is a hard-boiled steel commuter built for comfort, durability, and buffoonery on pavement and gravel.

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 it simple.

Features:

• 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
• Full Bike spec subject to change

Build:

Frameset

• • Frame: Surly Preamble, 100% Chromoly steel tubing, E.D. coated
  • Fork: Surly Preamble, 100% Chromoly steel fork, Disc Only
  • Seatpost Clamp: Surly Stainless 30.0

Components

• • Headset: VP 1-1/8″ Threadless
  • Brakes: Avid BB5 Mechanical
  • Brake levers: Avid FR-5
  • Rotors: SRAM 160mm F/R
  • Shifters: microSHIFT Acolyte Xpress
  • Stem: Kalloy 31.8
  • Handlebar: Kalloy, 35mm rise, 9-degree backsweep
  • Grip/Tape: Black Rubber
  • Saddle: Selle Italia X-Base
  • Seatpost: Kalloy 27.2 x 300mm

Drivetrain

• • Crankset: Samox, 3-piece, 40t
  • Bottom Bracket: JIS 68 x 124.5mm
  • Rear derailleur: microSHIFT RD-M5185M
  • Cassette: microSHIFT 12-42t, 8-speed
  • Chain: KMC Z8.3

Wheels

• 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) & Kenda Standard 650b x 1.35 (XS/SM)