Surly Midnight Special 650b Bike (Black) (58cm)

Surly Midnight Special 650b Bike (Black) (58cm)
Temporarily Unavailable
Price: $2,349.00

Please Log in to receive a notification when this item arrives in stock.

Save In List
This item is eligible for Super Saver Shipping Learn More
This item earns up to 2349 VIP Reward Points Learn More

Surly Midnight Special Bike Description:

The Midnight Special is a road plus bike designed to provide comfort and speed on those all-day rides that extend well beyond fresh pavement. It excels 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 for a much more comfortable ride.


  • 100% Surly 4130 CroMoly frame, main triangle is double-butted; 1-1/8" threadless CroMoly fork
  • Rack, fender, and three sets of water bottle mounts
  • Flat-Mount disc brakes
  • 44mm head tube
  • Tire Clearance: 27.5 x 2.35" (w/o fenders), 700c x 42mm (w/o fenders), 650b x 50 (w/ fenders), 700c x 38mm (w/ fenders)


  • Fork Material: Steel
  • Color: Black
  • Wheel Size: 650b+
  • Brake Type: Disc
  • Front Axle: 12mm Thru x 100mm
  • Platform: Midnight Special
  • Fork Type: Rigid
  • Frame Material: Steel
  • TT (Effective): 540 (50cm), 555 (54cm), 570 (56cm)
  • Mfg Size: 50cm, 54cm, 56cm
  • Defined Color: Black
  • Rear Axle: 12mm Thru x 142mm 
  • Frame Type: Rigid


  • Frame: Surly Midnight Special, 100% Chromoly, Natch tubing, double-butted main triangle, TIG welded, ED coated
  • Fork: 100% Chromoly, Natch tubing, TIG welded, brazed lugs, ED coated

  • Drivetrain:

  • Crankset: SRAM Rival 1, 40t
  • Bottom Bracket: SRAM GXP
  • Front Derailleur: n/a
  • Rear Derailleur: SRAM Rival 1
  • Cassette / Cog: SunRace 11-42t
  • Chain: KMC X11, 11 speed

  • Components:

  • Grips / Bar Tape: Black Cork
  • Handlebar: Salsa Cowbell 31.8
  • Stem: ProMax, 31.8, 4-bolt
  • Headset: Cane Creek 40, 1-1/8"
  • Shifters: SRAM Rival 1
  • Brake Levers: SRAM Rival 1
  • Brakes: TRP Spyre, 160mm rotors
  • Saddle: WTB Volt 142
  • Seatclamp: 30.0mm Surly Stainless
  • Seatpost: ProMax

  • Wheels:

  • Front Hub: Novatec 12x100mm
  • Rear Hub: Novatec 12x142mm
  • Front Axle: Thru Axle
  • Rear Axle: Thru Axle
  • Rims: Alex Adventurer 2, Tubeless ready, 32H
  • Tires: WTB Horizon 650b x 47mm, TCS Folding, tan side wall
  • Tubes: included

*Note: These bikes are fully built by our expert bike builders, then partially disassembled as needed for shipping. Bikes will arrive to you with some basic assembly still required. 

This product was added to our catalog on October 20, 2022

Sizing Recommendations for Riders Who Fall Between Sizes:

  • Sizing down will provide a more maneuverable ride while sizing up will provide more stability
Rider Height (Feet)Rider Height (CM)
40cm5' - 5'3"152 - 160cm
46cm5'3" - 5'5"160 - 165cm
50cm5'5" - 5'7"165 - 170cm
54cm5'6" - 5'9"168 - 175cm
56cm5'9" - 5'11175 - 180cm
58cm5'11" - 6'2"180 - 188cm
60cm6'2" - 6'5"188 - 196cm
64cm6'5" - 6'8"196 - 203cm

Note: All sizing recommendations are provided by the manufacturer and may differ for each rider.



Head Tube Angle71.0°71.5°72.0°72.5°73.0°73.0°73.5°74.0°
Head Tube Length95mm100mm110mm125mm140mm160mm180mm200mm
Seat Tube Length400mm460mm500mm540mm560mm580mm600mm640mm
BB Drop70mm70mm65mm65mm65mm65mm65mm65mm
Chainstay Length425mm425mm425mm425mm425mm425mm425mm425mm
Top Tube Length, Actual487mm506mm531mm552mm564mm579mm597mm622mm
Top Tube Length, Effective500mm520mm540mm555mm570mm585mm605mm625mm
Seat Tube Angle75.5°74.0°73.5°73.5°73.0°73.0°72.5°72.5°
Standover Height720mm751mm778mm806mm827mm846mm866mm895mm
Stem Length70mm70 or 80mm70 or 80100 or 120mm100 or 120mm120mm120mm120mm
Stem Angle
Handlebar Width400mm400mm400mm420mm440mm440mm460mm460mm
Crank Length165mm170mm170mm175mm175mm175mm175mm175mm
Fork Length400mm400mm400mm400mm400mm400mm400mm400mm
Fork Rake50mm50mm50mm50mm40mm40mm40mm40mm
Head Tube Angle71.0°71.5°72.0°72.5°73.0°73.0°73.5°74.0°
Head Tube Length3.7"3.9"4.3"4.9"5.5"6.3"7.1"7.9"
Seat Tube Length15.7"18.1"19.7"21.3"22"22.8"23.6"25.2"
BB Drop2.8"2.8"2.6"2.6"2.6"2.6"2.6"2.6"
Chainstay Length16.7"16.7"16.7"16.7"16.7"16.7"16.7"16.7"
Top Tube Length, Actual19.2"19.9"20.9"21.7"22.2"22.8"23.5"24.5"
Top Tube Length, Effective19.7"20.5"21.3"21.9"22.4"23"23.8"24.6"
Seat Tube Angle75.5°74.0°73.5°73.5°73.0°73.0°72.5°72.5°
Standover Height28.3"29.6"30.6"31.7"32.6"33.3"34.1"35.2"
Stem Length2.8"3.1"3.1"3.9"3.9"4.7"4.7"4.7"
Stem Angle
Handlebar Width15.7"15.7"15.7"16.5"17.3"17.3"18.1"18.1"
Crank Length6.5"6.7"6.7"6.9"6.9"6.9"6.9"6.9"
Fork Length15.7"15.7"15.7"15.7"15.7"15.7"15.7"15.7"
Fork Rake2"2"2"2"1.6"1.6"1.6"1.6"

Note: All measurements are provided by the manufacturer and may vary depending on how measurements are acquired.