Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 650b -
Groupset Tourney, Altus -
Suspension Rigid -
Drivetrain 1 × 7 -
Brakes Rim
Sizing
Recommended size guide.
SM
158cm - 170cm
MD
168cm - 179cm
LG
176cm - 187cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Specialized A1 Premium Aluminum, Ground Control Positioning, formed tubes, fender/rack mounts
Suspension Fork
Roll Disc Steel, fender/rack mounts
Drivetrain
Rear Derailleur
Shimano Tourney, 7-speed
Shift Levers
Shimano Altus, 7-speed
Cassette
Shimano Tourney freewheel, 7-speed, 14-34t
Crank
Cold-forged alloy crankarms, 3-piece construction, 104mm BCD spider, 4-arm w/steel chainring, 42T w/steel chainguard
Bottom Bracket
BSA, square taper, cartridge bearings
Chain
KMC Z51, 7-speed
Pedals
Specialized City platform
Wheels
Front Hub
Specialized V-brake, alloy, loose ball bearings, 9mm, QR
Rear Hub
Specialized V-brake, loose ball bearings, QR, 32h
Rims
650b rim brake, double-wall aluminum, 16mm rim depth, 30.4mm internal width, 32h
Spokes
Stainless, 14g
Tires
Nimbus Sport, 60 TPI, BlackBelt protection, 650b x 2.3""
Brakes
Brakes
Tektro V-brake, linear pull
Cockpit
Stem
Forged alloy, 17-degree rise, 31.8mm clamp
Handlebar
Specialized Roll, 6061 alloy, 15-degree backsweep, 5-degree upsweep, 125mm rise, 31.8mm
Seat
Saddle
Body Geometry The Cup, steel rails, 245mm
Seatpost
Alloy, 12mm offset, 2-bolt clamp, 27.2mm
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG |
|---|---|---|---|
| Stack Reach Ratio | 1.71 mm | 1.78 mm | 1.77 mm |
| Bottom Bracket Height | 285 mm | 285 mm | 285 mm |
| Front Center | 618 mm | 626 mm | 654 mm |
| Rake | 55 mm | 55 mm | 55 mm |
| Trail | 84 mm | 77 mm | 77 mm |
| Stack | 578 mm | 611 mm | 639 mm |
| Reach | 338 mm | 344 mm | 362 mm |
| Top Tube Length | 587 mm | 607 mm | 637 mm |
| Seat Tube Angle | 67 ° | 67 ° | 67 ° |
| Seat Tube Length | 375 mm | 440 mm | 480 mm |
| Head Tube Angle | 68 ° | 69 ° | 69 ° |
| Head Tube Length | 155 mm | 185 mm | 215 mm |
| Chainstay Length | 472 mm | 472 mm | 472 mm |
| Wheelbase | 1081 mm | 1089 mm | 1118 mm |
| Bottom Bracket Drop | 70 mm | 70 mm | 70 mm |
| Standover Height | 694 mm | 756 mm | 798 mm |
| Wheels | 650 | 650 | 650 |
| Rider Min Height | 158 cm | 168 cm | 176 cm |
| Rider Max Height | 170 cm | 179 cm | 187 cm |
Model Overview
Roll completes the Specialized Roll model. Specialized released 70 bikes variations of this model so far. You can get a glimpse at all models from 2017, by clicking on this link.
Safety
When cycling always take safety very seriously. Wear a helmet, obey the traffic rules and wear hi-vis clothes. In short, take care of yourself so others can take care of you.
Comfort bikes average price
Our math shows that the average cost of a dependable Comfort bike is 360$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Comfort bike. In short, before purchasing your ideal bike do some research about its components, and also check for reviews online.
Roll components
Fork material
The fork is made out of steel, which tends to be more flexible than carbon forks in general. However, a carbon fork is considerably lighter.
Wheels size
When leaving the production line, the Roll model has aluminum wheels. After 700c wheels, 650b is the second most popular choice for road bikes. However, if you want higher speeds, you should look for a bike with 700c wheels.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The Roll comes with Rim brakes. Rim brakes are cheaper than hydraulic brakes, and also easier to maintain. However, they have problems in wet conditions.
Sizes
This bike is available in 3 sizes. They vary from 158 cm – 187 cm (5.18 ft – 6.14 ft). In conclusion, finding one for you shouldn’t be a problem.