Velopedia Bicycle Archive

Surly Midnight Special Frameset - Fool's Gold

Cyclocross/Gravel bicycle from the Velopedia specification archive.

Model year: Not published by manufacturer
Original MSRP: From $849.00
Sizes: 40cm; 46cm; 50cm; 54cm; 56cm; 58cm; 60cm; 64cm
Colors: Fool's Gold; Hi-Viz Black; Black
Geometry: 8 manufacturer sizes
Archive ID: 900000350
Catalog verified: August 12, 2026

Current market

0 close matches

Observed used market No listingsNo close used matches in the latest snapshot.

New asking No listingsNo close matches in this condition.

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Velopedia analysis

What the specifications mean

Derived from the archived manufacturer record

The 700C label identifies a 622 mm bead-seat diameter, but tire width and frame or fork clearance remain separate compatibility questions. For the steel frame, paint damage and moisture entry matter because corrosion can begin at scratches, vent holes or internal surfaces.

Wheel standard 700C · 622 mm The label fixes rim diameter, not tire width or available frame and fork clearance.

Frame inspection Steel Paint damage and moisture entry matter because corrosion can start externally or inside the frame.

Starting MSRP $849.00 Historical launch-position context—not a current valuation or asking price.

Used-bike inspection

If you’re buying this bike used

Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.

FrameCheck paint chips, vent holes and the inside of the seat tube for corrosion. Also look for dents, bent tubes and cracking around welded or brazed joints.
Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.

This interpretation explains relationships in the published data. Confirm exact standards and dimensions before ordering parts or performing service.

Frameset

Frame Construction	Surly Midnight Special 4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, ED coated
Frame Material	Steel
Fork	Surly Midnight Special 4130 Chromoly, Natch tubing, TIG welded, brazed lugs, ED coated
Fork Material	Steel

Wheels & Tires

Wheel Size	650B; 700C

Size-specific frame data

Geometry

8 sizes · 13 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	40cm	46cm	50cm	54cm	56cm	58cm	60cm	64cm
Seat tube	400 mm	460 mm	500 mm	540 mm	560 mm	580 mm	600 mm	640 mm
Effective top tube	500 mm	520 mm	540 mm	555 mm	570 mm	585 mm	605 mm	625 mm
Head tube	95 mm	100 mm	110 mm	125 mm	140 mm	160 mm	180 mm	200 mm
Head-tube angle	71°	71.5°	72°	72.5°	73°	73°	73.5°	74°
Seat-tube angle	75.5°	74°	73.5°	73.5°	73°	73°	72.5°	72.5°
Chainstay / rear center	425 mm	425 mm	425 mm	425 mm	425 mm	425 mm	425 mm	425 mm
Wheelbase	993 mm	994 mm	1007 mm	1018 mm	1012 mm	1027 mm	1036 mm	1050 mm
Bottom-bracket drop	70 mm	70 mm	65 mm	65 mm	65 mm	65 mm	65 mm	65 mm
Reach	363 mm	366 mm	379 mm	389 mm	393 mm	402 mm	409 mm	423 mm
Stack	531 mm	538 mm	544 mm	560 mm	580 mm	599 mm	620 mm	641 mm
Standover height	720 mm	751 mm	778 mm	806 mm	827 mm	846 mm	866 mm	895 mm
Fork offset / rake	50 mm	50 mm	50 mm	50 mm	40 mm	40 mm	40 mm	40 mm
Fork length / axle-to-crown	400 mm	400 mm	400 mm	400 mm	400 mm	400 mm	400 mm	400 mm

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

Gallery

Live marketplace data

Current Market Snapshot

Updated Aug 15, 2026

Velopedia did not find a close used eBay listing in the latest snapshot. New and used listings remain separate.

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No close current matches found. Velopedia did not find an eBay listing confident enough to include in the latest snapshot.

Active asking prices are not completed-sale prices or an appraisal. Only Velopedia's high-confidence matches are included; lower-confidence Review candidates are excluded. Browse all current matched listings.