Surly Midnight Special Frameset


Today’s road bikes are tricky little buggers. Sure, there’s still a place for super narrow, pizza cutter-esque tires that save watts and shave grams or whatever. There’s probably still even a place for a road racing bike. Those places still exist.

Surly just don’t know – or particularly care – where they are. When it comes to road bikes, they just want to toss a few bananas into their pockets and see where the road takes them. Surly seek out varied surfaces on their rides and frequently go from pavement to gravel to shittier pavement. 

Custom build only

Please make a selection below:

Clear selection

Available as a custom build only

Unfortunately, due to Covid19 related supply issues, this product is currently only available as part of an in-house Commuter custom build.

  • Get in touch about this product

    Drop into the workshop, call us on (03) 9388 1319, send us an email or fill out the form below and we'll get back to you:
  • This field is for validation purposes and should be left unchanged.



Enter: The Midnight Special – a Road Plus bike designed to provide comfort and speed on those all-day rides that extend well beyond fresh pavement. It rides like a cloud on smooth pavement. but that’s expected. Any bike can do that. Where it truly shines is on pot-holed, deteriorating pavement and the occasional long stretch of gravel. The Midnight Special’s 650b Road Plus tires eat up road chatter and absorb all the bumps in the road like the champion it was designed to be. 

If you’re some masochist who is unfazed by the thought of a bumpy, chattery eight-hour road ride, you should know that the benefits of Road Plus go beyond just comfort. They also create a wider contact patch, thereby increasing your traction. And traction is a good thing. Additionally, higher volume tyres allow you to better fine tune your tire pressure on varying surfaces. Let a little out on bumpier roads and pump those suckers up on smooth ones. 

At first glance, you might notice that Midnight Special has fewer bells than some of Surly’s other models. But don’t you fret, it still chock full of whistles. It utilises modern road standards like flat-mount disc brakes, 12mm front and rear thru-axles, and a 44 mm head tube. Couple all that with a 650b x 60 mm or 700c x 42 mm tire clearance and you have a bike that will withstand evolving trends and standards. Surly deliberately kept the Midnight Special a little leaner on the braze-on side of things. Well, lean for a Surly. It has mounts for racks, fenders, and three water bottles so you can bring what you need for a long road ride, keep your keister dry, and still pee a healthy clear at the end of your ride.

Frame Specifications

Frame Specifications

Frame Construction 4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, ED coated
Fork Construction 4130 Chromoly, Natch tubing, TIG welded, brazed lugs, ED coated
Rear Dropout Configuration Vertical
Rear Hub Spacing 12 x 142mm  (Surly axle included)

10 x 135mm with Surly 10/12 Adapter Washers (not included)

Front Hub Spacing 12 x 100mm (Surly axle included)
Rear Brake Disc – Flat Mount (160mm max rotor)
Front Brake Disc – Flat Mount (160mm max rotor)
Head Tube Ø44mm
Steerer Tube Ø28.6mm (1-1/8″)
Crown Race Ø30mm (1-1/8″)
Stock Headset Upper (S.H.I.S.) ZS44/28.6
Stock Headset Lower (S.H.I.S.) EC44/30
Seat Collar Ø30mm
Seatpost Ø27.2mm
Front Derailleur (Clamp) Bottom-pull (Ø28.6mm)
Max Chainring (CL)[3] 1x (Road): 44T

2x (Road): 34/50T

3x (Road): 30/39/50T

Bottom Bracket 68mm threaded (1.37″ x 24TPI)
Tire Clearance Frame [1]/[2] 27.5 x 2.35″  (w/o fenders)

700c x 42mm (w/o fenders)

650b x 50 (w/ fenders)

700c x 38mm (w/ fenders)

Tire Clearance Fork [1] 27.5 x 2.35″ (w/o fenders)

700c x 42mm (w/o fenders)

650b x 50 (w/ fenders) 700c x 38mm (w/ fenders)

Rigid Fork Spec 400 x 50mm (40 – 54cm)

400 x 40mm (56 – 64cm)

Max Suspension Fork Length [4] N/A
Bottle Mounts Frame 3 Standard
Bottle Mounts Fork N/A
Rack Mounts Frame Yes (upper and lower threaded)
Rack Mounts Fork Yes (upper, lower, and mid-blade threaded)
Fender Mounts Frame Yes
Fender Mounts Fork Yes
Other Features Downtube mounted shifter bosses

[1] Different tire and rim combinations will result in different clearances.  
[2] Depending on drivetrain configuration, tire clearance may be limited by the chain and not frame.
[3] Listed chainring clearance is worst case scenario.  Clearances vary widely depending on components and configurations.
[4] Suspension fork length listed at full extension (not at sag) 



40cm 50cm 54cm 56cm 58cm
Reach 363 379 389 393 402
Stack 531 544 560 580 599
Head Tube Angle 71.0° 72.0° 72.5° 73.0° 73.0°
Head Tube Length 95 110 125 140 160
Seat Tube Length 400 500 540 560 580
BB Drop 70 65 65 65 65
Wheelbase 993 1007 1018 1012 1027
Chainstay Length 425 425 425 425 425
Top Tube Length, Actual 487 531 552 564 579
Top Tube Length, Effective 500 540 555 570 585
Seat Tube Angle 75.5° 73.5° 73.5° 73.0° 73.0°
Standover Height 720 778 806 827 846
Stem Length 70 80 100 100 120
Stem Angle
Handlebar Width 400 400 420 440 440
Crank Length 165 170 175 175 175
Fork Length 400 400 400 400 400
Fork Rake 50 50 50 40 40

Reviews & Discussion (0)

Reviews & Questions

What others are saying

There are no contributions yet.

Let us know what you think...




A link to set a new password will be sent to your email address.

Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.

Continue as a Guest

Don't have an account? Sign Up

You may also like…