Giant Roam 1 Disc

2018 UrbanHybrid Manufacturer page

Giant Roam 1 Disc, color Satin Dark Blue / Silver/blue

Last known price: $1,010

Prices shown first for United States
Fork travel: 63 mm
Wheels: 700c
Drivetrain: 3 × 10 26–48t / 11–36t
Gear range: 604%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

19 of 21 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

ALUXX-Grade Aluminum Not identified

Suspension

2 parts

Fork
- SR Suntour
Rear shock

None

Drivetrain

7 parts

Bottom bracket
- Shimano
Cassette
- Shimano CS-HG50-10 10 speeds
CS-HG50-10HG-50
Chain
- KMC X10 10 speeds
Crankset
- Shimano FC-T521 10 speeds 26/36/48t
FC-T521
Front derailleur
- Shimano Deore
Rear derailleur
- Shimano Deore
Shifters
- Shimano Deore

Brakes

2 parts

Brake levers
- Shimano BL-M365
BL-M365
Brakes
- Shimano BR-M365
BR-M365

Wheels and tires

5 parts

Cockpit and contact points

5 parts

Handlebar
- Giant
Pedals

Platform Not identified
Saddle
- Giant
Seatpost
- Giant
Stem
- Giant

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 413mm

Stack 611mm

Wheelbase 1107mm

Head angle 70.5°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	408	413	419	425
Stackmm	596	611	625	639
Top tube lengthmm	590	600	610	620
Seat tube lengthmm	420	460	510	550
Head tube lengthmm	115	130	145	160
Head tube angle	70.5°	70.5°	70.5°	70.5°
Seat tube angle	73°	73°	73°	73°
Chainstay lengthmm	455	455	455	455
Wheelbasemm	1096	1107	1118	1128
Front centermm	648	659	670	680
Bottom bracket dropmm	60	60	60	60
Standover heightmm	727	752	781	809
Fork rakemm	45	45	45	45
Trailmm	78	78	78	78
Stack/reach ratio	1.46	1.48	1.49	1.50
Suspension and parts
Crank lengthmm	170	172.5	172.5	175
Handlebar widthmm	640	670	670	670
Stem lengthmm	90	100	110	110

Not published by the manufacturer: Bottom bracket height, Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 63 mm

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 26
Largest chainring: 48
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 20.9 in
Highest gear: 126.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Coil
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

2 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

20.9 gear inches

This value is below the central range for this class.

Cohort: Urban / Hybrid Model year: 2018
Sample: 259 bicycles with this information
Coverage: 85.7% of the class

Highest gear

126.6 gear inches

This value is within the central range for this class.

Cohort: Urban / Hybrid Model year: 2018
Sample: 259 bicycles with this information
Coverage: 85.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.0 km/h
Highest gear: 48.5 km/h

Total gear range 604%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 20.9–126.6 gear inches
Class reference (p10–p90): 18.8–126.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Urban / Hybrid Model year: 2018
Lowest gear: 259 bicycles with this information, 85.7% of the class
Highest gear: 259 bicycles with this information, 85.7% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2018 builds

Differences across 2018 builds
Specification	This bicycle Giant Roam 1 Disc	Giant Roam 2 Disc	Giant Roam 3 Disc
Drivetrain
Smallest chainring	26	26	28
Rear sprockets	10	9	8
Largest sprocket	36	34	34
Lowest gear	20.9 in	22.2 in	23.9 in
Brakes
Brake type	Hydraulic disc	Hydraulic disc	Mechanical disc
Other specifications
Bottom bracket standard	Not informed	BSA	BSA
Tire width	Not informed	38c	38c