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Surly Bikes

FM4397

Surly Midnight Special Frameset

The Midnight Special is a road plus compatible frame, 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 matches perfectly with 650b road plus tires, ready to 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: 27.5x2.35" (w/o fenders), 700c x 42mm (w/o fenders), 650b x 50 (w/ fenders), 700c x 38mm (w/ fenders)
Frame measurements (mm) 40cm 46cm 50cm 54cm 56cm 58cm 60cm 64cm
A. BB Drop 70 70 65 65 65 65 65 65
B. Chainstay Length 425 425 425 425 425 425 425 425
C. Fork Length - Axle to Crown 400 400 400 400 400 400 400 400
D. Fork Offset 50 50 50 50 40 40 40 40
E. Head Tube Angle (deg) 71.0 71.5 72.0 72.5 73.0 73.0 73.5 74.0
F. Headtube Length 95 100 110 125 140 160 180 200
G. Reach 363 366 379 389 393 402 409 423
H. Seat Tube Angle (deg) 75.5 74.0 73.5 73.5 73.0 73.0 72.5 72.5
I. Seat Tube Length - Center to Top 400 460 500 540 560 580 600 640
J. Stack 531 538 544 560 580 599 620 641
K. Standover 720 751 778 806 827 846 866 895
L. Top Tube Length (Effective) 500 520 540 555 570 585 605 625
M. Wheelbase 993 994 1007 1018 1012 1027 1036 1050
                 
Component measurements (mm)
Crank Arm Length 165 170 170 175 175 175 175 175
Handlebar Width 400 400 400 420 440 440 460 460
Handlebar Rise / Drop - - - - - - - -
Stem Length 70 80 80 100 100 120 120 120
Stem Angle (deg) 7 7 7 7 7 7 7 7

* All dimensions are preliminary and subject to change


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