Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 650b -
Groupset Tourney, Shimano -
Suspension Rigid -
Drivetrain 3 × 7 -
Brakes Mechanical Disc
Sizing
Recommended size guide.
SM
158cm - 171cm
MD
168cm - 180cm
LG
178cm - 189cm
XL
186cm - 199cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Specialized A1 Premium Aluminum, Ground Control Positioning, formed tubes, post mount disc, fender/rack mounts
Suspension Fork
Steel, IS mount disc, fender/rack mounts
Drivetrain
Rear Derailleur
Shimano Tourney, 7-Speed
Front Derailleur
Shimano Tourney, top swing, 31.8mm clamp
Shift Levers
Shimano EF510, Ez-Fire Plus, 7-speed
Cassette
Shimano Tourney freewheel, 7-speed, 14-34t
Crank
Forged alloy, square taper, 48/38/28T w/ chainguard
Bottom Bracket
BSA, square taper, cartridge bearings
Chain
KMC Z51, 7-speed
Pedals
Specialized City, platform
Wheels
Front Hub
Alloy, 6-bolt disc, loose ball bearing, QR, 32h
Rear Hub
Alloy, 7-speed freewheel, 6-bolt disc, loose ball bearings, quick-release, 36h
Rims
Double wall, 32h front 36h rear, disc only
Spokes
Stainless, 14g
Tires
Nimbus Sport, 650bx2.3", 60 TPI w/ BlackBelt Protection
Brakes
Brakes
Tektro, mechanical disc, resin pads, 160mm rotor
Cockpit
Stem
Forged alloy, 17-degree rise, 31.8mm clamp
Handlebar
Specialized Roll, 6061 alloy, 15-degree backsweep, 125mm rise, 31.8mm
Grips
Specialized Body Geometry Contour, lock-on
Seat
Saddle
Body Geometry The Cup, 6-degree rise, steel rails, 245mm
Seatpost
Spring suspension, alloy, 27.2mm, 2-bolt clamp
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.71 mm | 1.77 mm | 1.76 mm | 1.72 mm |
| Bottom Bracket Height | 285 mm | 285 mm | 285 mm | 285 mm |
| Front Center | 618 mm | 626 mm | 654 mm | 685 mm |
| Rake | 55 mm | 55 mm | 55 mm | 55 mm |
| Trail | 77 mm | 77 mm | 77 mm | 84 mm |
| Stack | 578 mm | 611 mm | 639 mm | 662 mm |
| Reach | 338.2 mm | 344.3 mm | 362.4 mm | 384 mm |
| Top Tube Length | 587 mm | 607 mm | 637 mm | 668 mm |
| Seat Tube Angle | 67 ° | 67 ° | 67 ° | 67 ° |
| Seat Tube Length | 375 mm | 440 mm | 480 mm | 520 mm |
| Head Tube Angle | 68 ° | 69 ° | 69 ° | 69 ° |
| Head Tube Length | 155 mm | 185 mm | 215 mm | 240 mm |
| Chainstay Length | 472 mm | 472 mm | 472 mm | 472 mm |
| Wheelbase | 1081 mm | 1089 mm | 1118 mm | 1148 mm |
| Bottom Bracket Drop | 70 mm | 70 mm | 70 mm | 70 mm |
| Standover Height | 722 mm | 779 mm | 816 mm | 842 mm |
| Wheels | 650 | 650 | 650 | 650 |
| Rider Min Height | 158 cm | 168 cm | 178 cm | 186 cm |
| Rider Max Height | 171 cm | 180 cm | 189 cm | 199 cm |
Model Overview
Roll Sport belongs to the Specialized Roll model. There are 70 bikes that carry this model name. Check out the entire range from 2018 of this model, by clicking this link.
Model range prices
Specialized Roll – Low-Entry – 2018 2018 is the cheapest bike model and costs 510$. Specialized Roll Comp X1 2018 is the most expensive one and costs 910$.
Safety
Your safety is a top priority so always wear a helmet when you ride your bike. Moreover, wear the right clothing. You want to be visible to other drivers, so avoid wearing dark clothing.
Average price for Comfort bikes
According to our calculations, the average cost of a Comfort bike that is reliable is 360$. However, this doesn’t mean that if you spend less money on a Comfort bike, you couldn’t get a decent one. In conclusion, always check bike reviews and their components before making a purchase to make sure you don’t overpay.
This bike was released in 2018 and its price was 610$. Doing a quick comparison, we notice that Roll Sport price is 69.44% higher than the average cost of a Comfort bike.
Overview of 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
The Roll Sport 2018 bike is equipped with aluminum wheels when leaving the factory. After 700c wheels, 650b is the second most popular choice for road bikes. However, if speed is what you’re after, 700c wheels are a better fit.
Brakes
Stopping the bike when needed, it’s essential for your safety. This bike has Mechanical Disc brakes. They are much easier to maintain than hydraulic disk brakes. However, with hydraulic disk brakes, you have the ultimate braking power!
Sizes
This bike is available in 4 sizes. They vary from 158 cm – 199 cm (5.18 ft – 6.53 ft). In conclusion, finding one for you shouldn’t be a problem.