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2018 Specialized

Roll - Low-Entry - 2018

A 650b aluminum frame comfort bike with mid-range components and tektro rim brakes.
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Manufacturer Price

$510
FrameAluminum
SuspensionRigid
ForkSteel
Wheels650b Aluminum
Drivetrain1 × 7
GroupsetTourney, Altus
BrakesTektro Rim
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

25 mph

Roll - Low-Entry - 2018

29 mph

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Highest gear

(descending)

Geometry
Specs
Build
Frame

Specialized A1 Premium Aluminum, Ground Control Positioning, formed tubes, V-brake, fender/rack mounts

Fork

Steel, V-brake, fender/rack mounts

Bottom Bracket

68mm, square taper, 124.5mm length

Stem

Specialized, 3D-forged alloy, 4-bolt, 7-degree rise

Handlebar

Specialized Roll, 6061 alloy, 15-degree backsweep, 125mm rise, 31.8mm

Saddle

Body Geometry "The Cup," 6-degree rise, steel rails, 245mm

Seatpost

Alloy, 12mm offset, 2-bolt clamp, 27.2mm

TypeRigid

Pedals

Specialized City, platform

Grips

Specialized Body Geometry Contour, lock-on

Groupset
Rear Derailleur

Shimano Tourney, 7-speed

Crank

Shimano Tourney, 3-piece, 42T w/ chainguard

Shifters

Shimano Altus, 7-Speed

Cassette

Shimano Tourney freewheel, 7-speed, 14-34t

Chain

KMC Z51, 7-speed

Brakes

Front: Tektro V-brake, linear pull, Rear: Tektro V-brake, linear pull

TypeTektro Rim

Wheels
Rims

Double-wall, 32h front/ 36h rear

Spokes

Stainless, 14g

Front Hub

Alloy, loose ball bearings, quick-release, 32h

Rear Hub

Alloy, 7-speed freewheel, v-brake, loose ball bearings, quick-release, 36h

Tires

Front: Nimbus Sport, 60 TPI, BlackBelt protection, 650b x 2.3", Rear: Nimbus Sport, 60 TPI, BlackBelt protection, 650b x 2.3"

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First added March 27

Last updated March 27

Not listed for 2,259 days