• Surly Midnight Special bike side view Sour Strawberry Sparkle color
  • Surly Midnight Special bike side view Perry Winkle's Sparkle color
  • Surly Midnight Special bike side view Hot Mayonnaise color
1 3

Midnight Special

Midnight Special

⚠️ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

View full details

Road Plus Bike That Tackles Pavement & Gravel

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)

Specifications

Geometry

Geometry Diagram
SIZE 40cm 46cm 50cm 54cm 56cm 58cm 60cm 64cm
Reach 363 366 379 389 393 402 409 423
Stack 531 538 544 560 580 599 620 641
Head Tube Angle 71.0° 71.5° 72.0° 72.5° 73.0° 73.0° 73.5° 74.0°
Head Tube Length 95 100 110 125 140 160 180 200
Seat Tube Length 400 460 500 540 560 580 600 640
BB Drop 70 70 65 65 65 65 65 65
Wheelbase 993 994 1007 1018 1012 1027 1036 1050
Chainstay Length 425 425 425 425 425 425 425 425
Top Tube Length, Actual 487 506 531 552 564 579 597 622
Top Tube Length, Effective 500 520 540 555 570 585 605 625
Seat Tube Angle 75.5° 74.0° 73.5° 73.5° 73.0° 73.0° 72.5° 72.5°
Standover Height 720 751 778 806 827 846 866 895
Stem Length 70 70 or 80 70 or 80 100 or 120 100 or 120 120 120 120
Stem Angle 6° 6° 6° 6° 6° 6° 6° 6°
Handlebar Width 400 400 400 420 440 440 460 460
Crank Length 165 170 170 175 175 175 175 175
Fork Length 400 400 400 400 400 400 400 400
Fork Rake 50 50 50 50 40 40 40 40

Frame Specs

  • 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) – 25mm thick mount / 32mm bolt length
  • Front Brake: Disc - Flat Mount (160mm max rotor) – 25mm thick mount / 32mm bolt length
  • 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
  • Colors: Sour Strawberry Sparkle; Perry Winkle's Sparkle; Hot Mayonnaise

[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) 

Documents

Blog posts

View all
1 3
View all