Specialized Roll 8

2014 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

10 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

Cr-Mo, vertical dropouts, fender braze-ons Not identified

Suspension

1 part

Fork
- Globe

Drivetrain

6 parts

Bottom bracket

Square taper, cartridge bearings, 68mm shell Not identified
Cassette
- SunRace
Chain
- KMC X8 8 speeds
Crankset

Forged alloy arms, singlespeed, alloy ring Not identified
Rear derailleur
- Shimano Altus
Shifters
- SunRace

Brakes

2 parts

Brake levers
- Tektro
Brakes

Front: Alloy caliper, 1 pc. pad, Rear: Alloy caliper, 1 pc. pad Not identified

Wheels and tires

5 parts

Front hub
- Globe
Rear hub
- Globe
Rims

Deep V rear and short V front 700c, CNC machined sidewalls, 32h Not identified
Spokes

Stainless, 14g Not identified
Tires
- Specialized

Cockpit and contact points

5 parts

Handlebar

Custom swept back riser bar, alloy, 555m wide, 58mm rise, 19-degree upsweep, 25.4mm Not identified
Headset

1"" threaded, sealed, loose ball Not identified
Pedals

Alloy, 1 pc. body, loose ball, w/ reflectors Not identified
Saddle
- Globe
Seatpost

Alloy, 2-bolt, micro-adjust, 12.5mm offset, 27.2mm Not identified

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 405mm

Stack 504mm

Wheelbase 1008mm

Head angle 72.5°

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 Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	402	405	413	420
Stackmm	490	504	554	603
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	420	420	420	420
Wheelbasemm	1014	1008	1014	1043
Front centermm	601	596	614	631
Bottom bracket dropmm	60	60	60	60
Standover heightmm	740	772	820	868
Fork rakemm	45	45	45	45
Trailmm	69	60	57	52
Stack/reach ratio	1.22	1.24	1.34	1.44
Suspension and parts
Crank lengthmm	175	175	175	175

Not published by the manufacturer: Bottom bracket height, Front travel, Rear travel, Handlebar width, Stem length, 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
Travel: Front: Additional specification: Not available: Yes
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: 2014
Sample: 61 bicycles with this information
Coverage: 88.4% of the class

Highest gear

126.6 gear inches

This value is within the central range for this class.

Cohort: Urban / Comfort Model year: 2014
Sample: 61 bicycles with this information
Coverage: 88.4% 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: 2014
Lowest gear: 61 bicycles with this information, 88.4% of the class
Highest gear: 61 bicycles with this information, 88.4% 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 2014 builds
Specification	This bicycle Specialized Roll 8	Specialized Roll 1	Specialized Roll 7
Frame
Fork material	Steel	Steel	Aluminum
Drivetrain
Smallest chainring	48	42	46
Largest chainring	48	42	46
Rear sprockets	8	1	Not informed
Smallest sprocket	11	17	Not informed
Largest sprocket	32	17	Not informed
Lowest gear	43.5 in	71.7 in	Not informed
Highest gear	126.6 in	71.7 in	Not informed
Drivetrain technologies	Not informed	Not informed	internally-geared-hub
Cockpit
Shifting	Mechanical	No shifting	Mechanical
Other specifications
Tire width	25c	25c	28c