Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 650b -
Groupset Deore -
Suspension Rigid -
Drivetrain 1 × 10 -
Brakes Hydraulic Disc
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, disc mount, fender/rack mounts, reflective paint
Suspension Fork
A1 Premium Aluminum, Cr-Mo steerer, post disc mount, fender/rack mounts, reflective paint
Drivetrain
Rear Derailleur
Shimano Deore, Shadow Plus design, SGS cage, 10-speed
Shift Levers
Shimano Deore, 10-speed
Cassette
SunRace, 10-speed, 11-40t
Crank
Single crank, 130mm BCD spider, 42T w/aluminum chainguard
Bottom Bracket
BSA, square taper, cartridge bearings
Chain
KMC X10, 10-speed w/reusable MissingLink
Pedals
Specialized City platform
Wheels
Front Hub
Specialized disc, double-sealed, loose ball bearings, 9mm QR
Rear Hub
Specialized disc, loose ball bearings, for Shimano 10-speed cassette, QR
Rims
Specialized Roll, double-wall, 33mm inner width, disc
Spokes
Stainless, 14g
Tires
Nimbus Sport Reflective, 60 TPI, 27.5 x 2.3"
Brakes
Brakes
Shimano Acera, hydraulic disc, resin pads, 160mm rotor
Cockpit
Stem
Specialized Flowset, 3D-forged alloy, 12-degree rise, 31.8mm clamp
Handlebar
Specialized, alloy, 10-degree backsweep 31.8mm
Seat
Saddle
Milano Sport, steel rails
Seatpost
Alloy, 12mm offset, 2-bolt, 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 City completes the Specialized Roll model. 70 bikes variations carry this model name so far. You can easily view all of the Specialized Roll bikes models from 2017, here.
Safety
Your safety should be the top priority when you go for a ride. In short, make sure that you always use a helmet, high visibility clothing, and proper lights when riding at night-time.
Comfort bikes average price
Our math shows that the average cost of a dependable Comfort bike is 360$. However, you could also get a good Comfort bike even if you pay a lower amount than the average price. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Roll City components
Fork material
When it comes to the fork, this bike has an aluminum one, so there won’t be much extra weight added to the bike. However, they are not so stiff as carbon forks are.
Wheels
When it comes to wheels, the Roll City bike is equipped with the aluminum model. The 650b wheels are very similar to 700c, with a slight difference in diameter. 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 Hydraulic Disc brakes. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, these are ideal for anyone.
Sizes
There are 3 sizes available for this model. Rider height can be anywhere between 158 cm – 187 cm (5.18 ft – 6.14 ft). In short, you can easily find one that suits you.