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2017 Specialized

Roll Sport Low Entry

A 650b aluminum frame comfort bike with mid-range components and tektro mechanical disc brakes.
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FrameAluminum
SuspensionRigid
ForkSteel
Wheels650b Aluminum
Drivetrain3 × 7
GroupsetTourney
BrakesTektro Mechanical Disc
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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)

45 km/h

Roll Sport Low Entry

47 km/h

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Highest gear

(descending)

Reviews
Rider Notes
Roll Sport Low Entry rider review

Mar 2024 · Complicated Bobolink

If Anyone is looking for a Great Cruising bike This is the One

Highs
  • Best Cruising Bike

Lows
  • none

Read Review

Geometry
Specs
Build
Frame

Specialized A1 Premium Aluminum, Ground Control Positioning, formed tubes, disc mount, fender/rack mounts

BB StandardBSA, Threaded

Fork

Roll Disc Steel, fender/rack mounts

Bottom Bracket

BSA, square taper, cartridge bearings

Stem

Forged alloy, 17-degree rise, 31.8mm clamp

Handlebar

Specialized Roll, 6061 alloy, 15-degree backsweep, 5-degree upsweep, 125mm rise, 31.8mm

Saddle

Body Geometry The Cup, steel rails, 245mm

Seatpost

Dual-Bolt Diecast Head, AL6061 Post, Spring Suspension

TypeSuspension

Pedals

Specialized City platform

Groupset
Rear Derailleur

Shimano Tourney, 7-speed

Front Derailleur

Shimano Tourney, top swing, 31.8mm band clamp

Crank

Stout, forged alloy, 48/38/28T w/chainguard

Shifters

Shimano EF51, EZ Fire Plus, 7-speed

Cassette

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

Chain

KMC Z51, 7-speed

Brakes

Front: Tektro, mechanical disc, resin pads, 160mm rotor, Rear: Tektro, mechanical disc, resin pads, 160mm rotor

TypeTektro Mechanical Disc

Wheels
Rims

650b disc, double-wall aluminum, 15.5mm rim depth, 30mm internal width, 32h

Spokes

Stainless, 14g

Front Hub

Specialized disc, double-sealed, loose ball bearings, 9mm QR

Rear Hub

Specialized disc, loose ball bearings, QR

Tires

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

Rider Notes
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First added 6 November

Last updated 6 November

Not listed for 2,411 days