MSRP | $2,099 | $2,099 |
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Where to Buy | — $1 At | — $1 At |
Category | Gravel | Gravel |
Steel | Steel | |
Fork | Steel | Steel |
Wheels | Aluminum | Aluminum |
Wheel Size | 650b / 700c | 650b / 700c |
Clearance | 42c (700c) / 50c (27.5″) | 47c (27.5″) / 45c (700c) |
Brakes | Mechanical Disc | Hydraulic Disc |
Groupset | Rival | GRX 400, GRX 600 |
Drivetrain | 1 × 11 | 2 × 10 |
Brand Site | ||
Summary | The Surly Midnight Special is a steel frame gravel bike with upper mid-range components and mechanical disc brakes. |
Based on frame geometry and build specs.
Frame | 4130 CroMoly, double-butted main triangle, ED coated, TIG-welded Tire Clearance: 42c (700c) / 50c (27.5″) | 612 Select Chromoly Steel, TIG Welded and Brazed, E.D. Coated Tire Clearance: 42c (700c) / 50c (27.5″) |
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Fork | 4130 CroMoly, ED coated, TIG-welded | 612 Select Chromoly Steel, All-City Signature Fork ends and Crown, TIG Welded and Brazed, E.D. Coated |
Bottom Bracket | SRAM GXP | Shimano BSA |
Headset | Cane Creek 40, 1-1/8" | Cane Creek 40 Series |
Stem | ProMax, 31.8, 4 bolt | AL6061, 3D forged, 4-bolt stem, 31.8mm, ±6° Rise |
Handlebar | Salsa Cowbell 31.8 | AL6061, 31.8mm, 12° Flair |
Saddle | WTB Volt 142 | All-City Gonzo -OR- DDK-5255 |
Seatpost | Promax, ProMax SP-2019 27.2x300mm non-offset (for 40-50), ProMax SP-2016 27.2x300mm offset (for 54-64cm) | 27.2mm, two-bolt, 350mm length |
Rear Derailleur | SRAM Rival 1 | Shimano GRX RX400, 10-speed |
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Front Derailleur | n/a | Shimano GRX RX400 |
Crank | SRAM Rival 1, 40t | Shimano GRX RX600, 46/34t |
Shifters | SRAM Rival 1 | Shimano GRX RX400 |
Cassette | SunRace 11-42t | MicroSHIFT, 11-32t |
Chain | KMC X11 | KMC X10 EPT |
Brakes | TRP Spyre, 160mm rotors | Shimano GRX RX400 |
Brake Levers | SRAM Rival 1 | Shimano GRX RX400 |
Rims | Alex Adventurer 2 with eyelets, tubeless ready | WTB ST i19, TCS 2.0, 32h, 650b (43cm~61cm) |
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Front Hub | Novatec 12x100mm | All-City Go Devil, 32h, 6-bolt |
Rear Hub | Novatec 12x142mm | All-City Go Devil, 32h, 6-bolt |
Tires | WTB Horizon 650bx47mm, TCS Folding, tan side wall | Teravail Rampart, 650bx47mm, 60tpi, Light & Supple, Tan Wall (43cm~61cm) |
Disc Rotors | Shimano RT26, 160mm, 6-bolt |