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2021 Haibike

HardSeven 4

A 27.5″ aluminum frame hardtail trail e-bike with mid-range components.
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Manufacturer Price

€2,699($3,139)
FrameAluminum
SuspensionHardtail, 120mm
ForkSuntour XCM
Wheels27.5″ Aluminum
Drivetrain1 × 9
GroupsetAlivio
MotorBosch 250W 65Nm mid-drive
BatteryBosch 400Wh
BrakesTektro Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
HardSeven 4
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

28 mph

HardSeven 4

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
SM

5'2" – 5'7"

MD

5'6" – 5'11"

LG

5'9" – 6'2"

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews
off.road.cc
Haibike SDURO HardSeven 8.0 e-bike review

Feb 2019

The Haibike SDURO HardSeven 8.0 is an aluminium hardtail e-bike best suited to touring and tamer terrain. Built for comfort over the distance the e-mtb does what it says on the tin and is pretty good value too, but it’s not a trail shredder.

Read Review

Geometry
Specs
Build
Frame

Aluminium

ColorCool Grey/ Lava Matte

Fork

SR Suntour XCM32 Boost DS, Travel: 120mm

Travel120mm

Spring TypeCoil

Bottom Bracket

Integrated in the motor

Headset

Feimin, A-Head Tapered, Ball bearing

Stem

XLC, Alu, A-head

Handlebar

XLC, Topflat, 720 mm

Saddle

XLC, MTB

Seatpost

XLC, Aluminium, Patent, 31.6 mm

TypeRigid

Pedals

Freeridepedal, Aluminium, with Reflector,

Grips

Haibike, MTB grips

Groupset
Rear Derailleur

Shimano, Alivio M3100

Crank

Steel, 38 teeth

Shifters

Shimano, Alivio M3100, Trigger switch, 9 Speed

Cassette

SunRace, CSM90, 11 - 36 teeth

Chain

KMC, e9S

Brakes

Tektro, M275, 180 mm, 2-piston disc brake

TypeTektro Hydraulic Disc

Brake Levers

Tektro, M275, Aluminium

Wheels
Rims

Schürmann, Yak25, with eyelets, hollow rim, Aluminium

Spokes

Sapim, Leader, Black

Tires

Impac, Smart Pac, 57-584, 27,5" x 2.25"

Electric Components
Motor

Bosch, Performance Line, 250W, 65 Nm, 25 km/h

Battery

Bosch PowerTube 400Wh

Display

Bosch, Purion

Rider Notes
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First added November 28

Last updated September 7

Not listed for 629 days