Surly Wednesday

Name: Surly Wednesday
Brand: Surly

2017 MountainFat bike

Suspension: Rigid
Wheels: 26″
Drivetrain: 2 × 10 22–34t / 11–36t
Gear range: 506%
Frame: Steel
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

XS 156–166
SM 163–174
MD 171–182
LG 179–189
XL 185–195

Components

15 of 20 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Surly Wednesday, 100% Surly 4130 CroMoly steel. ED coated. Double-butted main triangle. TIG-welded Not identified

Suspension

1 part

Fork
- Surly

Drivetrain

7 parts

Bottom bracket

100mm wide, standard English threading (1.37˝ x 24t) Not identified
Cassette
- microSHIFT 11–36t
Chain
- KMC X10 10 speeds
Crankset
- SRAM X5 10 speeds 22/34t
Front derailleur
- SRAM X5
Rear derailleur
- SRAM GX
Shifters
- SRAM X5

Brakes

2 parts

Brake levers
- Tektro
Brakes
- Hayes

Wheels and tires

4 parts

Cockpit and contact points

5 parts

Handlebar

Premetec 31.8mm 11 degree Not identified
Headset
- Cane Creek
Saddle
- WTB Volt
Seatpost

H.L., 30.9 x 410mm Not identified
Stem

HL 4 bolt 31.8mm Not identified

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 436mm

Stack 587mm

Wheelbase 1122mm

Head angle 69.0°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 26″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	400	420	436	453	471
Stackmm	573	573	587	597	606
Top tube lengthmm	570	590	610	630	650
Seat tube lengthmm	316	366	416	466	516
Head tube lengthmm	95	100	110	120	130
Head tube angle	69°	69°	69°	69°	69°
Seat tube angle	73.5°	73.5°	73.5°	73.5°	73.5°
Chainstay lengthmm	435	435	435	435	435
Wheelbasemm	1081	1101	1122	1143	1164
Front centermm	652	672	693	714	735
Bottom bracket dropmm	55	55	55	55	55
Bottom bracket heightmm	288	288	288	288	288
Standover heightmm	711	737	774	807	841
Fork rakemm	47	47	47	47	47
Trailmm	81	81	81	81	81
Stack/reach ratio	1.43	1.36	1.35	1.32	1.29

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Steel
Fork material: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 22
Largest chainring: 34
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 15.9 in
Highest gear: 80.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire clearance: Maximum tire width: 4.6″
Tire width: 3.8″
Travel: Front: Additional specification: Not available: Yes
Rear: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 26″

Technical analysis

2 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

15.9 gear inches

This value is within the central range for this class.

Cohort: Mountain / Fat bike Model year: 2017
Sample: 65 bicycles with this information
Coverage: 95.5% of the class

Highest gear

80.4 gear inches

This value is within the central range for this class.

Cohort: Mountain / Fat bike Model year: 2017
Sample: 65 bicycles with this information
Coverage: 95.5% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.1 km/h
Highest gear: 30.8 km/h

Total gear range 506%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 15.9–80.4 gear inches
Class reference (p10–p90): 15.5–86.7 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Fat bike Model year: 2017
Lowest gear: 65 bicycles with this information, 95.5% of the class
Highest gear: 65 bicycles with this information, 95.5% of the class