Specialized BG Roulux 2

2011 UrbanHybrid Manufacturer page

Fork travel: 35 mm
Wheels: 700c
Drivetrain: 2 × 10 34–50t / 12–27t
Gear range: 331%
Frame: Aluminum
Brakes: Rim brake

Sizes

Size guide

45cm-WS
SM
49cm-WM
53cm-WL
MD
LG
XL

The manufacturer did not publish rider heights for these sizes.

Components

10 of 22 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

BG Roulux, Specialized A1 Premium Aluminum, double-butted with ergo road geometry, pivotless rear elastomer suspension, integrated HS, replaceable hanger Not identified

Suspension

1 part

Fork

Alloy aero blades, 35mm travel w/ preload adjust, Cr-Mo steerer, size specific spring rates Not identified

Drivetrain

7 parts

Bottom bracket
- Shimano
SM-FC4500
Cassette
- Shimano CS-5600 12–27t
CS-5600
Chain
- KMC
Crankset
- Shimano FC-R600
FC-R600
Front derailleur
- Shimano 105
Rear derailleur
- Shimano 105
Shifters
- Shimano SL-R770
SL-R770SL-R770-10

Brakes

2 parts

Brake levers

Ergo three-finger design for V brake Not identified
Brakes

Front: ""V"" brake, forged 102mm arm, cartridge pads, Rear: ""V"" brake, forged 102mm arm, cartridge pads Not identified

Wheels and tires

5 parts

Front hub

Forged alloy, sealed cartridge bearings, 24h Not identified
Rear hub

Forged alloy, sealed cartridge bearings, 28h Not identified
Rims
- Alex Rims
Spokes

2mm (14g) stainless Not identified
Tires
- Specialized

Cockpit and contact points

6 parts

Handlebar

Alloy BG bar, 31.8mm, 630mm wide, 30mm drop, 50 degree back sweep, 8 deg down Not identified
Headset

Integrated 1-1/8"" threadless, Campy type full cartridge bearings Not identified
Pedals

BG platform, 1pc alloy body w/ kraton top Not identified
Saddle
- Specialized
Seatpost

Alloy two bolt, micro adjust, 27.2mm Not identified
Stem

3D forged alloy w/ shim, 12 degree rise, 31.8mm clamp Not identified

Sizes and geometry

7 sizes Open in the geometry plotter

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

Size 53cm-WL

Table

Reach 354mm

Stack 601mm

Wheelbase 1043mm

Head angle 70.5°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 7 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	348	352	351	354	358	364	372
Stackmm	558	567	579	601	606	632	680
Top tube lengthmm	502	508	512	533	533	557	584
Seat tube lengthmm	430	440	430	460	460	480	530
Head tube lengthmm	120	130	140	160	165	200	245
Head tube angle	69.5°	69.5°	70°	70.5°	70.5°	70.5°	71°
Seat tube angle	76°	75.5°	75.5°	74°	74.5°	73.5°	73°
Chainstay lengthmm	460	460	460	460	460	460	460
Wheelbasemm	1036	1043	1042	1043	1048	1064	1079
Front centermm	586	593	592	594	599	614	628
Bottom bracket dropmm	73	73	73	73	73	71.5	70
Standover heightmm	677	742	684	686	765	791	830
Fork rakemm	49	49	49	45	45	45	45
Trailmm	75	75	72	73	73	73	70
Stack/reach ratio	1.60	1.61	1.65	1.70	1.69	1.74	1.83
Suspension and parts
Crank lengthmm	170	170	170	170	172.5	172.5	175
Handlebar widthmm	630	630	630	630	630	630	630
Stem lengthmm	75	90	90	90	110	110	120

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: Aluminum
Fork material: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 35 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 50
Rear sprockets: 10
Smallest sprocket: 12
Largest sprocket: 27
Lowest gear: 36.5 in
Highest gear: 120.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Coil
Tire width: 28c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

2 measures

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

Lowest gear

36.5 gear inches

This value is above the central range for this class.

Cohort: Urban / Hybrid Model year: 2011
Sample: 63 bicycles with this information
Coverage: 85.1% of the class

Highest gear

120.8 gear inches

This value is within the central range for this class.

Cohort: Urban / Hybrid Model year: 2011
Sample: 63 bicycles with this information
Coverage: 85.1% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 14.0 km/h
Highest gear: 46.3 km/h

Total gear range 331%

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: 36.5–120.8 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: Urban / Hybrid Model year: 2011
Lowest gear: 63 bicycles with this information, 85.1% of the class
Highest gear: 63 bicycles with this information, 85.1% 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 2011 builds

Differences across 2011 builds
Specification	This bicycle Specialized BG Roulux 2	Specialized BG Roulux 1	Specialized BG Roulux 1 Women's
Frame
Intended fit	Unisex	Unisex	womens
Drivetrain
Front chainrings	2	3	3
Smallest chainring	34	30	30
Rear sprockets	10	9	9
Smallest sprocket	12	11	11
Largest sprocket	27	28	28
Lowest gear	36.5 in	31.1 in	31.1 in
Highest gear	120.8 in	131.8 in	131.8 in