Velopedia Bicycle Archive

Surly Preamble Flat Bar - Skyrim Blue

City/Commuter bicycle from the Velopedia specification archive.

Model year: Not published by manufacturer
Original MSRP: $949.00
Sizes: X-Small; Small; Medium; Large; X-Large
Colors: Skyrim Blue
Geometry: 5 manufacturer sizes
Archive ID: 900000442
Catalog verified: August 13, 2026

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Frameset

Frame Construction	Surly Preamble, 100% Chromoly steel tubing, E.D. coated
Frame Material	Steel
Fork	Surly Preamble, 100% Chromoly steel fork, Disc Only
Fork Material	Steel

Drivetrain

Shifters	microSHIFT Acolyte Xpress
Front Derailleur	N/A
Rear Derailleur	microSHIFT RD-M5185M
Crankset	Samox, 3-piece, 40t
Bottom Bracket	Samox
Cassette	microSHIFT 12-42t, 8-speed
Chain	KMC Z8.3

Brakes

Brakes	Brake Calipers: Avid BB5 Mechanical; Brake Levers: Avid FR-5; Rotors: SRAM 160mm, front and rear

Cockpit & Contact Points

Headset	VP 1-1/8" Threadless
Handlebar	Kalloy, 35mm rise, 9-degree backsweep
Stem	Kalloy 31.8
Saddle	Selle Italia X Base
Seatpost	Kalloy 27.2 x 300mm

Wheels & Tires

Hubs	(F) Novatec, 6-bolt disc, 32h, QR / (R) Novatec, 6-bolt disc, 32h, QR
Rims	21mm, 32h
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)
Wheel Size	700C; 650B

Size-specific frame data

Geometry

5 sizes · 16 measurements

Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.

Measurement	X-Small	Small	Medium	Large	X-Large
Seat tube	410 mm	505 mm	565 mm	605 mm	645 mm
Effective top tube	500 mm	545 mm	570 mm	600 mm	630 mm
Head tube	120 mm	135 mm	130 mm	170 mm	210 mm
Head-tube angle	70°	71°	72°	72°	72°
Seat-tube angle	74°	73°	72.5°	72°	72°
Chainstay / rear center	420 mm	420 mm	435 mm	435 mm	435 mm
Wheelbase	987 mm	1013 mm	1030 mm	1055 mm	1085 mm
Bottom-bracket drop	54 mm	54 mm	66 mm	66 mm	66 mm
Reach	352 mm	381 mm	391 mm	404 mm	421 mm
Stack	517 mm	535 mm	567 mm	605 mm	643 mm
Standover height	722 mm	776 mm	826 mm	863 mm	901 mm
Fork offset / rake	47 mm	47 mm	44 mm	44 mm	44 mm
Fork length / axle-to-crown	380 mm	380 mm	400 mm	400 mm	400 mm
Crank length	165 mm	170 mm	170 mm	175 mm	175 mm
Stem length	80 mm	90 mm	90 mm	100 mm	100 mm
Handlebar width	700 mm	700 mm	720 mm	720 mm	720 mm

Geometry source: Manufacturer HTML geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.