Salsa Flyway vs Surly Midnight Special

Both published charts held against each other, on the specs that decide what the bike carries.

The short answer

The Flyway takes the rack path and dropper compatibility; the Midnight Special takes frame bag space, tire clearance and price. Which matters more is your route, not a scoreboard.

Assembled from the differences below rather than written over them, so it cannot drift from the table. Every figure is the manufacturer's; nobody here has ridden either bike.

Where they differ

5 of the 8 things we can compare come out differently. The rest are close enough not to decide anything.

Frame bag space

194 cm² more on the Midnight Special
Salsa Flyway
1714 cm²
Surly Midnight Special
1908 cm²

Front-triangle area at the largest size, computed from stack, reach and seat angle. It is what decides how much full-frame bag you can run, and a frame bag is the one place weight sits low and central.

Widest published tire

9mm more on the Midnight Special
Salsa Flyway
50mm on 700c / 29in, 51mm on 650b / 27.5in
Surly Midnight Special
42mm on 700c / 29in, 60mm on 650b / 27.5in

The frame figure, not the fork's — forks are routinely cut for more rubber than the rear triangle. Loaded, tire width is also seat-pack clearance: a big tire and a sagging pack compete for the same space.

Rear rack

Flyway is the one you can bolt a rack to without hunting for parts
Salsa Flyway
Needs an extra part — Rack-Lock seatpost collar
Surly Midnight Special
Not published

Read from each maker's own mount wording. An adapter is a real cost the price tag does not mention, and 'not published' is not the same as no — it just is not something to buy a rack on.

Dropper post

only the Flyway publishes dropper routing
Salsa Flyway
Compatible
Surly Midnight Special
Not compatible

A dropper cannot be strapped to, so fitting one rules out almost every seat pack and leaves rail-mounted bags at a fraction of the volume. It is a capability and a constraint at once.

From

$1,150 between them
Salsa Flyway
$3,499
Surly Midnight Special
$2,349

Manufacturer's cheapest complete build. Every spec above belongs to the frame and does not change between builds of the same model, so the cheapest build of the right frame is usually the right answer.

Side by side

Including the rows where the two are level, because a spec that doesn't separate them is still a spec you might be checking.

Salsa FlywaySurly Midnight Special
Frame bag space1714 cm²1908 cm²
Widest published tire50mm on 700c / 29in, 51mm on 650b / 27.5in42mm on 700c / 29in, 60mm on 650b / 27.5in
Rear rackNeeds an extra part — Rack-Lock seatpost collarNot published
Fork cargo mountsPublishedPublished
Frame bottle positions3not published as a count
Dropper postCompatibleNot compatible
Chainstay425mm425mm
From$3,499$2,349
Sizes68
FrameCarbon4130 Chromoly steel

Drawn to scale

Largest published size of each, built from the charts rather than illustrated. The front triangle is the part that decides frame bag fit.

Salsa Flyway — X-Large. Front triangle ≈ 1714 cm² · effective top tube 620mm · seat tube 575mm
Salsa Flyway in size X-Large, drawn to scale from Salsa's published geometry. The shaded area is the front triangle — roughly 1714 cm² of space for a frame bag. Wheels are indicative; frame lines are accurate.
Surly Midnight Special — 64cm. Front triangle ≈ 1908 cm² · effective top tube 625mm · seat tube 640mm
Surly Midnight Special in size 64cm, drawn to scale from Surly's published geometry. The shaded area is the front triangle — roughly 1908 cm² of space for a frame bag. Wheels are indicative; frame lines are accurate.
Salsa
Flyway
$3,499 · 6 sizes
Full geometry and which bags fit →
Surly
Midnight Special
$2,349 · 8 sizes
Full geometry and which bags fit →

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