Giant Road E+ 1 Pro

2020 RoadEndurance Electric bicycle Manufacturer page

Giant Road E+ 1 Pro, color Electric Blue / Cyan

Last known price: $4,500

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 11 34–50t / 11–32t
Gear range: 428%
Battery: 375 Wh
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

20 of 23 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 aluminum Not identified

Electric system

3 parts

Suspension

2 parts

Fork

Advanced-grade composite,12x100 thru-axle Not identified
Rear shock

None

Drivetrain

7 parts

Brakes

2 parts

Wheels and tires

5 parts

Cockpit and contact points

5 parts

Handlebar
- Giant
Pedals

Aluminum 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 381mm

Stack 568mm

Wheelbase 1046mm

Head angle 72.0°

Seat angle 73.5°

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	387	381	389	398
Stackmm	549	568	606	625
Top tube lengthmm	545	550	575	595
Seat tube lengthmm	450	475	525	550
Head tube lengthmm	110	130	170	190
Head tube angle	72°	72°	72°	72°
Seat tube angle	74°	73.5°	73°	72.5°
Chainstay lengthmm	455	455	455	455
Wheelbasemm	1045	1046	1066	1080
Front centermm	600	601	620	634
Bottom bracket dropmm	70	70	70	70
Bottom bracket heightmm	266	266	266	266
Fork rakemm	50	50	50	50
Trailmm	62.9	62.9	62.9	62.9
Stack/reach ratio	1.42	1.49	1.56	1.57
Suspension and parts
Crank lengthmm	170	170	170	170
Handlebar widthmm	400	420	420	440
Stem lengthmm	90	100	110	110

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 50
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 30.8 in
Highest gear: 131.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Electric system

Battery capacity: 375 Wh

Additional specifications

Battery: Giant EnergyPak Smart 375, 36V Integrated Lithium-Ion
Tire width: 32c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

3 measures

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

Lowest gear

30.8 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2020
Sample: 524 bicycles with this information
Coverage: 90.0% of the class

Highest gear

131.8 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2020
Sample: 524 bicycles with this information
Coverage: 90.0% of the class

Shifting

Mechanical

143 of 582 bicycles with this information use electronic shifting.

Cohort: Road / Endurance Model year: 2020
Sample: 582 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.8 km/h
Highest gear: 50.5 km/h

Total gear range 428%

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: 30.8–131.8 gear inches
Class reference (p10–p90): 29.0–137.1 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Endurance Model year: 2020
Lowest gear: 524 bicycles with this information, 90.0% of the class
Highest gear: 524 bicycles with this information, 90.0% of the class