Surly Wednesday Fat Tire Trail Bike Frame
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Details
**Bike Frame Only**
Wednesday sits in the middle of the Trail category, but don’t let that fool you into thinking that’s its only use. With Wednesday, it has borrowed elements from some of Surly's Trail and Touring models to create a versatile fat tire trail bike that can truly handle anything you want to attempt.
If you do an equal amount of off-road touring as you do hitting trails, Wednesday’s ability to play both parts equally will suit you well. Or, if you’re looking for a fat bike and don’t need the fattest tires on the market, Wednesday’s 26 x 4.6” tire clearance is just the ticket.
“Any day of the week’s a great day to ride a Wednesday.”
FRAME
The Wednesday is Surly's all-terrain fat bike. The frame features trail-ready geometry, 4.6" of tire clearance, provides lots of cargo carrying capabilities and is paired with a 100mm suspension-corrected fork.
- 100% Surly 4130 Chromoly steel.
- 100% Surly Chromoly Steel, Natch tubing, double-butted main triangle, TIG welded, E.D. coated
- Fork
- Tapered straight blade 4130 Chromoly.
- Tapered straight blade 4130 Chromoly. 468mm axle to crown, 47mm offset. 51mm I.S. front standard disc mount, 150mm x 15mm thru-axle dropouts (axle included), 100mm suspension fork compatible
- Seatpost Clamp
- Stainless 33.1 collar, Black
GEOMETRY
| SIZE | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Reach | 400.0 | 420.0 | 436.0 | 453.0 | 471.0 |
| Stack | 573.0 | 578.0 | 587.0 | 597.0 | 606.0 |
| Head Tube Angle | 69.0° | 69.0° | 69.0° | 69.0° | 69.0° |
| Head Tube Length | 95.0 | 100.0 | 110.0 | 120.0 | 130.0 |
| Seat Tube Length | 316.0 | 366.0 | 416.0 | 466.0 | 516.0 |
| BB Drop | 55.0 | 55.0 | 55.0 | 55.0 | 55.0 |
| Wheelbase | 1081.0 | 1101.0 | 1122.0 | 1143.0 | 1164.0 |
| Chainstay Length | 435.0 | 435.0 | 435.0 | 435.0 | 435.0 |
| Top Tube Length, Actual | 571.0 | 577.0 | 590.0 | 606.0 | 627.0 |
| Top Tube Length, Effective | 570.0 | 590.0 | 610.0 | 630.0 | 650.0 |
| Seat Tube Angle | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° |
| Standover Height | 711.0 | 737.0 | 774.0 | 807.0 | 841.0 |
| Stem Length | 60 | 60 | 70 | 70 | 80 |
| Stem Angle | 7° | 7° | 7° | 7° | 7° |
| Handlebar Width | 700 | 700 | 750 | 750 | 750 |
| Crank Length | 170 | 170 | 175 | 175 | 175 |
| Fork Length | 468.0 | 468.0 | 468.0 | 468.0 | 468.0 |
| Fork Rake | 47.0 | 47.0 | 47.0 | 47.0 | 47.0 |
*Standover is measured from the top of the TT, at the center, with a tire measuring approximately 749mm
FRAME SPECS
- Frame Construction
- 4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, ED coated
- Fork Construction
- 4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated
- Rear Dropout Configuration
- Horizontal slotted with optional vertical dumpout
- Rear Hub Spacing
- 12 x 177mm (Surly axle included) 10 x 170mm with Surly 10/12 Adapter Washers (not included)
- Front Hub Spacing
- 15 x 150mm (Surly axle included)
- Rear Brake
- Disc - 51mm I.S. (203mm max rotor)
- Front Brake
- Disc - 51mm I.S. (203mm max rotor)
- Head Tube
- 44mm
- Steerer Tube
- 28.6mm (1-1/8")
- Crown Race
- 30mm (1-1/8")
- Stock Headset Upper (S.H.I.S.)
- ZS44/28.6
- Stock Headset Lower (S.H.I.S.)
- EC44/30
- Seat Collar
- 33.1mm
- Seatpost
- 30.9mm
- Front Derailleur (Clamp)
- High direct mount top-pull (Ø34.9mm)
- Max Chainring (CL)[3]
- 1x (Fat bike 170): 34T 2x (Fat bike 170): 26/38T 2x (Surly OD): 22/36T
- Bottom Bracket
- 100mm threaded (1.37" x 24TPI)
- Tire Clearance Frame [1]/[2]
- 26 x 4.3" (rear axle position) 26 x 3.8" (front axle position) 29 x 3.0"
- Tire Clearance Fork [1]
- 26 x 5.25" 29 x 3.0"
- Rigid Fork Spec
- 468 x 47mm
- Max Suspension Fork Length [4]
- 511 x 51mm (Fatbike 100mm)
- Bottle Mounts Frame
- 2 Standard (XS - M) 3 Standard (L - XL)
- Bottle Mounts Fork
- 2 Three-Pack
- 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
- N/A
- Other Features
- Internal dropper post routing compatible
- [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)