Surly Wednesday

Name: Surly Wednesday
Brand: Surly

2020 MountainFat bike

Last known price: $1,675

Prices shown first for United States
Suspension: Rigid
Wheels: 26″
Drivetrain: 1 × 12 11–50t
Gear range: 455%
Frame: Steel
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

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

Components

12 of 18 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 Chromoly steel. Surly Wednesday, 100% Surly 4130 Chromoly steel. ED coated. Double-butted main triangle. TIG-welded Not identified

Suspension

1 part

Fork
- Surly

Drivetrain

7 parts

Brakes

1 part

Brakes
- Tektro HD-M275 / HD-M276
HD-M275HD-M276

Wheels and tires

4 parts

Front hub

150 x 15mm thru-axle, 32h, black Not identified
Rear hub

177 x 12mm thru-axle, 32h, black Not identified
Rims
- Surly
Tires
- Surly

Cockpit and contact points

5 parts

Handlebar

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

30.9 Not identified
Stem

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
Frame
Reachmm	400	420	436	453	471
Stackmm	573	578	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	83	81	81	81
Stack/reach ratio	1.43	1.38	1.35	1.32	1.29
Suspension and parts
Crank lengthmm	170	170	175	175	175
Handlebar widthmm	700	700	750	750	750
Stem lengthmm	60	60	70	70	80
Stem angle	7°	7°	7°	7°	7°

Not published by the manufacturer: Front travel, Rear travel, 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: 1
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 50

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

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″

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Changes since 2019

Changes since 2019
Specification	2019 Surly Wednesday	This bicycle Surly Wednesday
Drivetrain
Smallest chainring	28	Not informed
Largest chainring	28	Not informed
Rear sprockets	11	12
Largest sprocket	42	50
Lowest gear	17.3 in	Not informed
Highest gear	66.2 in	Not informed
Brakes
Brake type	Mechanical disc	Hydraulic disc