Surly Disc Trucker

Name: Surly Disc Trucker
Brand: Surly

2020 RoadTouring

Last known price: $1,749

Prices shown first for United States
Suspension: Rigid
Wheels: 26″, 700c
Drivetrain: 3 × 9 26–48t / 11–34t
Gear range: 571%
Frame: Steel
Brakes: Mechanical disc

Sizes

Size guide

42cm
46cm
50cm
52cm
54cm
56cm
56cm
58cm
60cm
62cm
64cm

The manufacturer did not publish rider heights for these sizes.

Components

19 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 Long Haul Trucker, 100% Surly 4130 CroMoly steel. Surly Long Haul Trucker, 100% Surly 4130 CroMoly steel. Main triangle double-butted. TIG-welded Not identified

Suspension

1 part

Fork
- Surly

Drivetrain

7 parts

Bottom bracket
- Shimano BB-RS500
BB-RS500
Cassette
- Shimano 11–34t
Chain
- KMC X9 9 speeds
Crankset
- Shimano Alivio
Front derailleur
- Shimano Sora
Rear derailleur
- Shimano RD-M4000
RD-M4000
Shifters
- Shimano Sora

Brakes

2 parts

Wheels and tires

4 parts

Cockpit and contact points

5 parts

Sizes and geometry

11 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 56cm

Table

Reach 388mm

Stack 613mm

Wheelbase 1076mm

Head angle 71.0°

Seat angle 73.0°

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 Reach Stack

Complete manufacturer geometry table 11 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	362	371	369	374.5	378	387.5	387.5	391	400	402	412.5
Stackmm	515	520	561	575.5	594.5	613	613	632	651.5	670.5	685
Top tube lengthmm	500	515	530	545	560	575	575	590	605	620	635
Seat tube lengthmm	420	460	500	520	540	560	560	580	600	620	640
Head tube lengthmm	125	130	170	185	205	225	175	195	215	235	250
Head tube angle	70°	70°	71°	71°	71°	71°	72°	72°	72°	72°	72°
Seat tube angle	75°	74.5°	74°	73.5°	73°	73°	73°	72.5°	72.5°	72°	72°
Chainstay lengthmm	450	450	450	450	450	450	450	450	450	450	450
Wheelbasemm	1026	1037	1040	1050	1060.5	1076	1051	1060	1075.5	1084	1090
Front centermm	581	592	595	605	615	631	613	622	638	646	652
Bottom bracket dropmm	50	50	50	50	50	50	80	80	80	80	80
Bottom bracket heightmm	—	—	—	—	—	—	256	256	256	256	256
Standover heightmm	710	731	766	782	800	819.5	813	831	850	869	885
Fork rakemm	45	45	45	45	45	45	45	45	45	45	45
Trailmm	63	63	57	57	57	57	62	62	62	62	71
Stack/reach ratio	1.42	1.40	1.52	1.54	1.57	1.58	1.58	1.62	1.63	1.67	1.66
Suspension and parts
Crank lengthmm	165	165	170	170	170	175	175	175	175	175	175
Handlebar widthmm	420	420	420	450	450	480	480	480	480	480	480
Stem lengthmm	70	70	70	90	100	110	100	100	110	120	120
Stem angle	6°	6°	6°	6°	6°	6°	6°	6°	6°	6°	6°

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: 3
Smallest chainring: 26
Largest chainring: 48
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 22.2 in
Highest gear: 126.6 in

Wheels and brakes

Wheel configuration: Wheel options
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire clearance: Maximum tire width: 47c; Additional specification: Wheel kind: 700
Travel: Front: Additional specification: Not available: Yes
Rear: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 26″, 700c

Technical analysis

2 measures

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

Lowest gear

22.2 gear inches

This value is within the central range for this class.

Cohort: Road / Touring Model year: 2020
Sample: 39 bicycles with this information
Coverage: 84.7% of the class

Highest gear

126.6 gear inches

This value is above the central range for this class.

Cohort: Road / Touring Model year: 2020
Sample: 39 bicycles with this information
Coverage: 84.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.5 km/h
Highest gear: 48.5 km/h

Total gear range 571%

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: 22.2–126.6 gear inches
Class reference (p10–p90): 18.3–126.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Touring Model year: 2020
Lowest gear: 39 bicycles with this information, 84.7% of the class
Highest gear: 39 bicycles with this information, 84.7% of the class

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 Disc Trucker	This bicycle Surly Disc Trucker
Drivetrain
Rear sprockets	10	9
Largest sprocket	36	34
Lowest gear	20.9 in	22.2 in
Other specifications
Tire clearance	Maximum tire width: 42c; Additional specification: Wheel kind: 700	Maximum tire width: 47c; Additional specification: Wheel kind: 700
Bottom bracket standard	Not informed	BSA