Specialized Roll Sport

Name: Specialized Roll Sport
Brand: Specialized

2021 UrbanComfort Manufacturer page

Specialized Roll Sport, color Satin Redwood / Smoke / Black Reflective

Suspension: Rigid
Wheels: 650b
Drivetrain: 2 × 7 30–46t / 12–32t
Gear range: 409%
Frame: Aluminum
Brakes: Mechanical disc

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

Specialized A1 Premium Aluminum, Ground Control Positioning, formed tubes, post-mount disc, fender/rack mounts Not identified

Suspension

1 part

Fork

Steel formed tubes, post-mount disc, fender/rack mounts Not identified

Drivetrain

7 parts

Bottom bracket

BSA, square-taper, 68mm Not identified
Cassette
- Shimano CS-HG200 12–32t
CS-HG200
Chain
- KMC Z7 7 speeds
Crankset
- Shimano Tourney 46/30t
Front derailleur
- Shimano Tourney FD-TY710
FD-TY710
Rear derailleur
- Shimano Altus
Shifters
- Shimano ST-EF500
ST-EF500

Brakes

1 part

Brakes
- Tektro
SPD-21

Wheels and tires

5 parts

Front hub

Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h Not identified
Rear hub

Alloy, 6-bolt disc, 7-speed freehub, loose ball bearing, quick-release, 32h Not identified
Rims

650b disc, double-wall alloy, pinned, 32h Not identified
Spokes

Stainless, 14g Not identified
Tires

Front: Nimbus II Sport, 650b x 2.3", Rear: Nimbus II Sport, 650b x 2.3" Not identified

Cockpit and contact points

6 parts

Grips
- Specialized
Handlebar
- Specialized
Pedals
- Specialized
Saddle

Body Geometry "The Cup," 6-degree rise, steel rails, 245mm Not identified
Seatpost

Spring suspension, alloy, 27.2mm, 2-bolt clamp Not identified
Stem
- Specialized

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 352mm

Stack 616mm

Wheelbase 1095mm

Head angle 69.0°

Seat angle 67.0°

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 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	346	352	370	392
Stackmm	583	616	644	667
Top tube lengthmm	594	613	643	675
Seat tube lengthmm	375	440	480	520
Head tube lengthmm	155	185	215	240
Head tube angle	68°	69°	69°	69°
Seat tube angle	67°	67°	67°	67°
Chainstay lengthmm	480	480	480	480
Wheelbasemm	1088	1095	1124	1155
Front centermm	617	624	653	684
Bottom bracket dropmm	70	70	70	70
Bottom bracket heightmm	285	285	285	285
Standover heightmm	801	850	881	911
Fork rakemm	55	55	55	55
Trailmm	84	77	77	77
Stack/reach ratio	1.69	1.75	1.74	1.70
Suspension and parts
Crank lengthmm	170	170	175	175
Handlebar widthmm	680	680	680	680
Stem lengthmm	60	60	60	60
Seatpost lengthmm	350	350	350	350

Not published by the manufacturer: Front travel, Rear travel, Stem angle and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 30
Largest chainring: 46
Rear sprockets: 7
Smallest sprocket: 12
Largest sprocket: 32
Lowest gear: 25.8 in
Highest gear: 105.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: suspension
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire width: 2.3″
Travel: Front: Additional specification: Not available: Yes
Rear: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 650b

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.9 km/h
Highest gear: 40.4 km/h

Total gear range 409%

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: 25.8–105.4 gear inches

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 2021 builds
Specification	This bicycle Specialized Roll Sport	Specialized Roll	Specialized Roll Elite	Specialized Roll Elite - Low-Entry	Specialized Roll - Low-Entry	Specialized Roll Sport LOW Entry TW
Frame
Fork material	Steel	Steel	Aluminum	Aluminum	Steel	Steel
Drivetrain
Front chainrings	2	3	2	2	3	2
Smallest chainring	30	22	22	22	22	30
Largest chainring	46	44	36	36	44	46
Rear sprockets	7	8	9	9	8	8
Smallest sprocket	12	Not informed	Not informed	Not informed	Not informed	Not informed
Largest sprocket	32	Not informed	Not informed	Not informed	Not informed	Not informed
Lowest gear	25.8 in	Not informed	Not informed	Not informed	Not informed	Not informed
Highest gear	105.4 in	Not informed	Not informed	Not informed	Not informed	Not informed
Brakes
Brake type	Mechanical disc	Rim brake	Hydraulic disc	Hydraulic disc	Rim brake	Mechanical disc
Cockpit
Seatpost	suspension	Rigid seatpost	suspension	suspension	Rigid seatpost	suspension
Other specifications
Bottom bracket standard	BSA	Not informed	Not informed	Not informed	Not informed	BSA