Specialized Roll 8

2013 UrbanComfort Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 8 48t / 11–32t
Gear range: 291%
Frame: Steel
Brakes: Rim brake

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

11 of 21 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

Cr-Mo frame TT/ST/DT, vertical dropouts, brake drilling, fender braze-ons Not identified

Suspension

1 part

Fork
- Globe

Drivetrain

6 parts

Bottom bracket

Cartridge bearing, square spindle, w/ crank stop right side, capless bolts Not identified
Cassette
- SunRace
Chain
- KMC
Crankset

Forged alloy-arm, multi-speed, alloy ring Not identified
Rear derailleur
- Shimano Altus
Shifters
- SRAM EX1 8-speed Trigger 8 speeds

Brakes

2 parts

Brake levers

Classic caliper pull, forged Not identified
Brakes

Front: Melt-forged alloy caliper, cartridge pads, Rear: Melt-forged alloy caliper, cartridge pads Not identified

Wheels and tires

5 parts

Front hub
- Globe
Rear hub
- Globe
Rims

700c V profile, 32mm rear, 23mm front, machine sidewall, 32h Not identified
Spokes

Stainless, 14g Not identified
Tires
- Specialized

Cockpit and contact points

6 parts

Handlebar

Custom swept back riser, 58mm rise, 19-degree upsweep, 545mm wide Not identified
Headset

1"" threaded, sealed loose ball bearings Not identified
Pedals
- Globe
Saddle
- Globe
Seatpost

Alloy, 2-bolt forged head, 27.2mm, 12.5mm offset Not identified
Stem
- Globe

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Geometry diagram unavailable

The drawing needs reach and stack, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Top tube lengthmm	520	550	580	610
Seat tube lengthmm	480	530	580	630
Head tube lengthmm	82.5	92.5	142.5	192.5
Head tube angle	71°	72.5°	73°	73.5°
Seat tube angle	76.5°	74°	73.25°	72.5°
Chainstay lengthmm	405	405	407	407
Wheelbasemm	998	993	1014	1030
Front centermm	601	596	614	631
Bottom bracket dropmm	60	60	60	60
Standover heightmm	739	768	814	862
Fork rakemm	45	45	45	45
Trailmm	69	60	57	52
Suspension and parts
Crank lengthmm	170	170	170	175
Handlebar widthmm	545	545	545	545
Stem lengthmm	80	80	100	100

Not published by the manufacturer: Reach, Stack, Bottom bracket height, Stack/reach ratio, 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: 48
Largest chainring: 48
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 43.5 in
Highest gear: 126.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 25c
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

43.5 gear inches

This value is above the central range for this class.

Cohort: Urban / Comfort Model year: 2013
Sample: 48 bicycles with this information
Coverage: 75.0% of the class

Highest gear

126.6 gear inches

This value is within the central range for this class.

Cohort: Urban / Comfort Model year: 2013
Sample: 48 bicycles with this information
Coverage: 75.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 16.7 km/h
Highest gear: 48.5 km/h

Total gear range 291%

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: 43.5–126.6 gear inches
Class reference (p10–p90): 21.4–126.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Urban / Comfort Model year: 2013
Lowest gear: 48 bicycles with this information, 75.0% of the class
Highest gear: 48 bicycles with this information, 75.0% 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 2013 builds

Differences across 2013 builds
Specification	This bicycle Specialized Roll 8	Specialized Roll 1
Drivetrain
Smallest chainring	48	42
Largest chainring	48	42
Rear sprockets	8	1
Smallest sprocket	11	17
Largest sprocket	32	17
Lowest gear	43.5 in	71.7 in
Highest gear	126.6 in	71.7 in
Cockpit
Shifting	Mechanical	No shifting
Other specifications
Tire width	25c	23c