Giant Dirt-E+ 1

2017 MountainTrail Electric bicycle Manufacturer page

Last known price: $3,500

Prices shown first for United States
Fork travel: 120 mm
Wheels: 27.5″
Drivetrain: 2 × 10 28–38t / 11–36t
Gear range: 444%
Battery: 500 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

19 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-grade aluminum Not identified

Electric system

3 parts

Suspension

2 parts

Fork
- SR Suntour
Rear shock

None

Drivetrain

7 parts

Bottom bracket

None
Cassette
- Shimano CS-HG50-10 10 speeds
CS-HG50-10
Chain
- KMC
Crankset

Custom forged, 28/38 Not identified
Front derailleur
- Shimano Deore
Rear derailleur
- Shimano Deore XT
Shifters
- Shimano Deore

Brakes

2 parts

Brake levers
- Shimano BL-M506
BL-M506
Brakes
- Shimano BR-M447
BR-M447

Wheels and tires

5 parts

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

Stainless Steel Not identified
Tires
- Schwalbe

Cockpit and contact points

5 parts

Handlebar
- Giant
Pedals

Alloy 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 405mm

Stack 605mm

Wheelbase 1132mm

Head angle 69.5°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ 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	385	405	419	435
Stackmm	605	605	623	638
Top tube lengthmm	570	590	610	630
Seat tube lengthmm	405	455	505	535
Head tube lengthmm	135	135	155	170
Head tube angle	69.5°	69.5°	69.5°	69.5°
Seat tube angle	73°	73°	73°	73°
Chainstay lengthmm	455	455	455	455
Wheelbasemm	1112	1132	1153	1174
Front centermm	659	679	700	721
Bottom bracket dropmm	35	35	35	35
Bottom bracket heightmm	320	320	320	320
Fork rakemm	42	42	42	42
Trailmm	91	91	91	91
Stack/reach ratio	1.57	1.49	1.49	1.47
Suspension and parts
Crank lengthmm	170	170	170	170
Handlebar widthmm	730	730	730	730
Stem lengthmm	60	70	80	90

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

Suspension

Suspension configuration: Hardtail
Front travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 28
Largest chainring: 38
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 21.4 in
Highest gear: 95.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Electric system

Battery capacity: 500 Wh

Additional specifications

Battery: Giant EnergyPak500, 36V 13.8Ah Rechargeable Lithium-Ion
Fork spring: Air
Tire width: 2.35″
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

3 measures

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

Front travel

120 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2017
Sample: 429 bicycles with this information
Coverage: 95.7% of the class

Lowest gear

21.4 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2017
Sample: 416 bicycles with this information
Coverage: 92.8% of the class

Highest gear

95.0 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2017
Sample: 416 bicycles with this information
Coverage: 92.8% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.2 km/h
Highest gear: 36.4 km/h

Total gear range 444%

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: 21.4–95.0 gear inches
Class reference (p10–p90): 16.8–94.9 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2017
Lowest gear: 416 bicycles with this information, 92.8% of the class
Highest gear: 416 bicycles with this information, 92.8% of the class