Bikes. Parts. Chaos.

Midnight Special is a road plus bike designed to provide comfort and speed on those all-day rides that extend well beyond fresh pavement.

Midnight Special shines on pot-holed, deteriorating pavement and the occasional long stretch of gravel. Its 650b road plus tires eat up road chatter and absorb all the bumps in the road like the champion it was designed to be.

When it comes to road bikes, we just want to toss a few bananas into our pockets and see where the road takes us. We seek out varied surfaces on our rides and frequently go from pavement to gravel to shittier pavement. Midnight Special allows us to accomplish all of that quite comfortably.

  • Higher volume tires allow better fine tuning of tire pressure on varying surfaces and create a wider contact patch for increased traction
  • Modern road standards like flat-mount disc brakes, 12mm front and rear thru-axles, and a 44mm head tube
  • Clearance for 650b x 60mm or 700c x 42mm tires without fenders (650b x 50mm or 700c x 38mm with fenders)

Bike Capabilities

  • 5/5 with Tire Clearance
  • 5/5 with Road Rides
  • 5/5 with Gravel
  • 4/5 with Commuting

NOTE: You can ride your bike wherever the hell you want, but this is what we think this bike is best at.

Midnight Special riding over railraod tracks
Midnight Special riding around corner
Midnight Special riding on bike path
Midnight Special riding on gravel
Midnight Special riding over cobblestones
Midnight Special cornering
Midnight Special bike side view

#midnightspecial Image Dump

#SurlyMakeItYourOwn
Tag your Instagram Images with #SurlyMakeItYourOwn and your bike may show up here.

Where to Buy

Midnight Special Bike Hot Mayonnaise

Specifications

Frameset

Frame4130 CroMoly, double-butted main triangle, ED coated, TIG-welded
Fork4130 CroMoly, ED coated, TIG-welded
Seatpost Clamp30.0mm Surly Stainless

Components

HeadsetCane Creek 40, 1-1/8"
BrakesTRP Spyre, 160mm rotors
Brake LeversSram Rival 22
ShiftersSram Rival 22
StemProMax, 31.8 4 bolt
HandlebarSalsa Cowbell 3
Grip/TapeBlack Cork
SaddleWTB Volt Sport
SeatpostPromax

ProMax SP-2019 27.2x300mm non-offset (for 40-50)
ProMax SP-2016 27.2x300mm offset (for 54-64cm)

Drivetrain

CranksetSram S390 50/34t
Bottom BracketSRAM GXP
Front DerailleurSram Rival 22
Rear DerailleurSram Rival 22
Cog or cogsetSunRace 11-32, 11 speed
ChainKMC X11

Wheels

Front HubFormula RX-812, 12mm thru, 32h
Rear HubFormula RX-300, 142mm thru, 32h
RimsAlex Adventurer 2 32h tubeless compatible
TiresWTB Horizon, 650b x 47, tan wall

Complete bike spec subject to change

Midnight Special Geo
units:
  • in
  • mm
40cm46cm50cm54cm56cm58cm60cm64cm
Reach14.336314.436614.937915.338915.539315.840216.140916.7423
Stack20.953121.253821.454422.056022.858023.659924.462025.2641
Head Tube Angle71.0°71.5°72.0°72.5°73.0°73.0°73.5°74.0°
Head Tube Length3.7953.91004.31104.91255.51406.31607.11807.9200
Seat Tube Length15.740018.146019.750021.354022.056022.858023.660025.2640
BB Drop2.8702.8702.6652.6652.6652.6652.6652.665
Wheelbase39.199339.199439.6100740.1101839.8101240.4102740.8103641.31050
Chainstay Length16.742516.742516.742516.742516.742516.742516.742516.7425
Top Tube Length, Actual19.248719.950620.953121.755222.256422.857923.559724.5622
Top Tube Length, Effective19.750020.552021.354021.955522.457023.058523.860524.6625
Seat Tube Angle75.5°74.0°73.5°73.5°73.0°73.0°72.5°72.5°
Standover Height28.372029.675130.677831.780632.682733.384634.186635.2895
Stem Length2.8703.1803.1803.91003.91004.71204.71204.7120
Stem Angle
Handlebar Width15.740015.740015.740016.542017.344017.344018.146018.1460
Crank Length6.51656.71706.71706.91756.91756.91756.91756.9175
Fork Length15.740015.740015.740015.740015.740015.740015.740015.7400
Fork Rake2.0502.0502.0502.0501.6401.6401.6401.640
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) 

FAQ & Reviews

Support

Frame Warranty

LIMITED WARRANTY

This Surly product is warranted against defects in materials and workmanship for three years from the date of retail purchase of the product, subject to the limitations detailed below. Save your dated receipt for proof of purchase.

This warranty does NOT cover the following:

  • Damage due to improper assembly or follow-up maintenance or lack of skill, competence or experience of the user or assembler
  • Products that have been modified, neglected, used in competition or for commercial purposes, misused or abused, involved in accidents or anything other than normal use
  • Installation of components, parts or accessories not originally intended for or compatible with bicycle as sold
  • Damage or deterioration to the paint, surface finish, aesthetics or appearance of the product
  • Normal wear and tear
  • Labor required to remove and/or refit and re-adjust the product within the bicycle assembly

This limited warranty is expressly limited to the repair or replacement of a defective product, at the option of Surly, and is the sole remedy of the warranty. This limited warranty applies only to the original purchaser of the Surly product and is not transferrable. This warranty applies only to products purchased through an authorized dealer or distributor. In no event shall Surly be liable for any loss, inconvenience or damage, whether direct, incidental, consequential, or otherwise resulting from breach of any express or implied warranty or condition, of merchantability, fitness for a particular purpose, or otherwise with respect to our products except as set forth herein.

This limited warranty gives the consumer specific legal rights, and those rights and other rights may vary from place to place. This limited warranty does not affect your statutory rights.

TO THE EXTENT NOT PROHIBITED BY LAW, THESE WARRANTIES ARE EXCLUSIVE AND THERE ARE NO OTHER EXPRESS OR IMPLIED WARRANTIES OR CONDITIONS INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.