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
SIZE | 40cm | 46cm | 50cm | 54cm | 56cm | 58cm | 60cm | 64cm |
---|---|---|---|---|---|---|---|---|
Reach | 14.3 363 | 14.4 366 | 14.9 379 | 15.3 389 | 15.5 393 | 15.8 402 | 16.1 409 | 16.7 423 |
Stack | 20.9 531 | 21.2 538 | 21.4 544 | 22.0 560 | 22.8 580 | 23.6 599 | 24.4 620 | 25.2 641 |
Head Tube Angle | 71.0° | 71.5° | 72.0° | 72.5° | 73.0° | 73.0° | 73.5° | 74.0° |
Head Tube Length | 3.7 95 | 3.9 100 | 4.3 110 | 4.9 125 | 5.5 140 | 6.3 160 | 7.1 180 | 7.9 200 |
Seat Tube Length | 15.7 400 | 18.1 460 | 19.7 500 | 21.3 540 | 22.0 560 | 22.8 580 | 23.6 600 | 25.2 640 |
BB Drop | 2.8 70 | 2.8 70 | 2.6 65 | 2.6 65 | 2.6 65 | 2.6 65 | 2.6 65 | 2.6 65 |
Wheelbase | 39.1 993 | 39.1 994 | 39.6 1007 | 40.1 1018 | 39.8 1012 | 40.4 1027 | 40.8 1036 | 41.3 1050 |
Chainstay Length | 16.7 425 | 16.7 425 | 16.7 425 | 16.7 425 | 16.7 425 | 16.7 425 | 16.7 425 | 16.7 425 |
Top Tube Length, Actual | 19.2 487 | 19.9 506 | 20.9 531 | 21.7 552 | 22.2 564 | 22.8 579 | 23.5 597 | 24.5 622 |
Top Tube Length, Effective | 19.7 500 | 20.5 520 | 21.3 540 | 21.9 555 | 22.4 570 | 23.0 585 | 23.8 605 | 24.6 625 |
Seat Tube Angle | 75.5° | 74.0° | 73.5° | 73.5° | 73.0° | 73.0° | 72.5° | 72.5° |
Standover Height | 28.3 720 | 29.6 751 | 30.6 778 | 31.7 806 | 32.6 827 | 33.3 846 | 34.1 866 | 35.2 895 |
Stem Length | 2.8 70 | 3.1 80 | 3.1 80 | 3.9 100 | 3.9 100 | 4.7 120 | 4.7 120 | 4.7 120 |
Stem Angle | 6° | 6° | 6° | 6° | 6° | 6° | 6° | 6° |
Handlebar Width | 15.7 400 | 15.7 400 | 15.7 400 | 16.5 420 | 17.3 440 | 17.3 440 | 18.1 460 | 18.1 460 |
Crank Length | 6.5 165 | 6.7 170 | 6.7 170 | 6.9 175 | 6.9 175 | 6.9 175 | 6.9 175 | 6.9 175 |
Fork Length | 15.7 400 | 15.7 400 | 15.7 400 | 15.7 400 | 15.7 400 | 15.7 400 | 15.7 400 | 15.7 400 |
Fork Rake | 2.0 50 | 2.0 50 | 2.0 50 | 2.0 50 | 1.6 40 | 1.6 40 | 1.6 40 | 1.6 40 |
- 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
[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)
Support
Downloads
- Frame Sheet
[pdf] - 443KB - Fork Instructions
[pdf] - 184KB - Surly Bike Sizing Chart
[pdf] - 308KB
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.