Giant Roam E+

Name: Giant Roam E+
Brand: Giant

2021 UrbanHybrid Electric bicycle Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £2,199 Last known price
Fork travel: 63 mm
Wheels: 700c
Drivetrain: 1 × 9 42t / 11–36t
Gear range: 327%
Battery: 400 Wh
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 160–171
MD 169–181
LG 179–191
XL 189–200

Components

18 of 22 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 SL aluminium, Overdrive 1½ - 1⅛" head tube, integrated KS18 kickstand mount, compatible with fenders Not identified

Electric system

3 parts

Battery
- Giant
Display

None
Motor
- Giant

Suspension

3 parts

Fork
- SR Suntour NEX
Rear shock

None
Remote

RideControl One Not identified

Drivetrain

7 parts

Bottom bracket

None
Cassette
- Shimano CS-HG200 11–36t
CS-HG200
Chain
- KMC e9 Sport 9 speeds
Crankset
- Factor 42t
Front derailleur

None
Rear derailleur
- Shimano Alivio RD-M3100 9 speeds
RD-M3100
Shifters
- Shimano Altus SL-M2000
SL-M2000

Brakes

2 parts

Wheels and tires

5 parts

Front hub
- Giant
Rear hub
- Giant
Rims
- Giant
Spokes

Stainless steel Not identified
Tires
- Giant

Cockpit and contact points

5 parts

Handlebar
- Giant
Pedals

Aluminium 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 400mm

Stack 619mm

Wheelbase 1121mm

Head angle 69.5°

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	395	400	416	432
Stackmm	610	619	633	648
Top tube lengthmm	570	590	610	630
Seat tube lengthmm	435	485	535	585
Head tube lengthmm	130	140	155	170
Head tube angle	69.5°	69.5°	69.5°	69.5°
Seat tube angle	74°	73°	73°	73°
Chainstay lengthmm	455	455	455	455
Wheelbasemm	1112	1121	1142	1163
Front centermm	664	673	694	714
Bottom bracket dropmm	60	60	60	60
Standover heightmm	745	775	808	844
Fork rakemm	42	42	42	42
Trailmm	91.3	91.3	91.3	91.3
Stack/reach ratio	1.54	1.55	1.52	1.50
Suspension and parts
Crank lengthmm	170	170	170	170
Handlebar widthmm	620	620	620	620
Stem lengthmm	60	70	80	90

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: 1
Smallest chainring: 42
Largest chainring: 42
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 33.8 in
Highest gear: 110.7 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Electric system

Battery capacity: 400 Wh

Additional specifications

Battery: Giant EnergyPak 400Wh, Side-release
Fork spring: Coil
Tire width: 45c
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

33.8 gear inches

This value is above the central range for this class.

Cohort: Urban / Hybrid Model year: 2021
Sample: 522 bicycles with this information
Coverage: 74.0% of the class

Highest gear

110.7 gear inches

This value is within the central range for this class.

Cohort: Urban / Hybrid Model year: 2021
Sample: 522 bicycles with this information
Coverage: 74.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 13.0 km/h
Highest gear: 42.4 km/h

Total gear range 327%

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: 33.8–110.7 gear inches
Class reference (p10–p90): 21.6–126.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Urban / Hybrid Model year: 2021
Lowest gear: 522 bicycles with this information, 74.0% of the class
Highest gear: 522 bicycles with this information, 74.0% 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 2021 builds

Differences across 2021 builds
Specification	This bicycle Giant Roam E+	Giant Roam E+ Electric Bike	Giant Roam E+ GTS	Giant Roam E+ STA	Giant Roam E+ Stagger Frame	Giant Roam E+ Stagger Frame Electric Bike
Other specifications
Battery	Capacity: 400 WhGiant EnergyPak 400Wh, Side-release	Capacity: 400 WhGiant EnergyPak 400Wh, Side-release	Capacity: 400 WhEnergyPak 400Wh, 36V, 11.3Ah rechargeable lithium-ion	Capacity: 400 WhGiant EnergyPak 400Wh, Side-release	Capacity: 400 WhGiant EnergyPak 400Wh, Side-release	Capacity: 400 WhGiant EnergyPak 400Wh, Side-release