Surly Straggler 650b

Name: Surly Straggler 650b
Brand: Surly

2025 RoadGravel Manufacturer page

Last known price: $1,699

Prices shown first for United States
Suspension: Rigid
Wheels: 650b
Drivetrain: 1 × 11 42t / 11–42t
Gear range: 382%
Frame: Steel
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

38cm 150–160
42cm 152–163
46cm 155–165
50cm 160–170
52cm 165–175
54cm Not informed

Components

16 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 Straggler, 100% Surly proprietary 4130 CroMoly tubing. ED Coated. TIG-welded. Double-butted main triangle Not identified

Suspension

1 part

Fork
- Surly

Drivetrain

7 parts

Bottom bracket

68mm threaded (1.37" x 24TPI) Not identified
Cassette
- SunRace
Chain
- SRAM PC-1110 11 speeds
PC-1110
Crankset
- SRAM Apex 1 10 speeds 42t
Front derailleur

None
Rear derailleur
- SRAM Apex 1 11 speeds
Shifters
- SRAM Apex

Brakes

3 parts

Brake levers
- SRAM Apex Disc
Brakes
- SRAM
Disc rotors

Disc - 51mm I.S. (160mm max rotor) Not identified

Wheels and tires

4 parts

Cockpit and contact points

5 parts

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 46cm

Table

Reach 371mm

Stack 511mm

Wheelbase 977mm

Head angle 71.0°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 650b wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 6 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	371	369	371	383	386	392
Stackmm	483	498	511	523	534	548
Top tube lengthmm	500	510	520	535	550	565
Seat tube lengthmm	380	420	460	500	520	540
Head tube lengthmm	85	100	110	120	130	145
Head tube angle	69.5°	70°	71°	71.5°	72°	72°
Seat tube angle	75.5°	74.5°	74°	74°	73°	72.5°
Chainstay lengthmm	405	405	405	405	405	410
Wheelbasemm	980	978	977	988	990	1005
Front centermm	581	579	578	589	591	601
Bottom bracket dropmm	54	54	54	54	54	54
Standover heightmm	704	726	751	776	789	806
Fork rakemm	44	44	44	44	44	44
Trailmm	76	74	66	64	61	61
Stack/reach ratio	1.30	1.35	1.38	1.37	1.38	1.40
Suspension and parts
Crank lengthmm	165	165	165	170	172.5	172.5
Handlebar widthmm	380	380	400	400	420	420
Stem lengthmm	60	60	70	80	100	100

Not published by the manufacturer: Bottom bracket height, Front travel, Rear travel, 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: 1
Smallest chainring: 42
Largest chainring: 42
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 27.5 in
Highest gear: 105.0 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
Wheel material: Aluminum
Wheel size: 650b

Technical analysis

3 measures

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

Lowest gear

27.5 gear inches

This value is above the central range for this class.

Cohort: Road / Gravel Model year: 2025
Sample: 1,536 bicycles with this information
Coverage: 76.6% of the class

Highest gear

105.0 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2025
Sample: 1,536 bicycles with this information
Coverage: 76.6% of the class

Shifting

Mechanical

688 of 1,999 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2025
Sample: 1,999 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.5 km/h
Highest gear: 40.2 km/h

Total gear range 382%

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: 27.5–105.0 gear inches
Class reference (p10–p90): 22.8–126.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2025
Lowest gear: 1536 bicycles with this information, 76.6% of the class
Highest gear: 1536 bicycles with this information, 76.6% 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.

Differences across 2025 builds

Differences across 2025 builds
Specification	This bicycle Surly Straggler 650b	Surly Straggler	Surly Straggler 700c
Drivetrain
Smallest chainring	42	40	42
Largest chainring	42	40	42
Largest sprocket	42	50	42
Lowest gear	27.5 in	23.2 in	29.0 in
Highest gear	105.0 in	105.5 in	110.7 in
Brakes
Brake type	Mechanical disc	Hydraulic disc	Mechanical disc
Other specifications
Wheel size	650b	650b / 700c	700c