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2021 Haibike

HardFour

A 24″ aluminum frame hardtail crosscountry e-bike with modest components.

Manufacturer Price

€2,299($2,674)
Weight44.1 lbs  
FrameAluminum
SuspensionHardtail, 63mm
ForkSuntour XCR
Wheels24″ Aluminum
Drivetrain1 × 9
GroupsetAltus
MotorYamaha 250W 60Nm mid-drive
BatteryYamaha 400Wh
BrakesTektro Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
HardFour
Other Crosscountry 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)

21 mph

HardFour

27 mph

Similar Bikes

Highest gear

(descending)

Geometry
Specs
Build
Frame

Haibike, HardFour, Aluminium 6061

ColorCool Grey / Red / Cyan

Fork

SR Suntour, XCR LO, Lockout, Steel spring, Travel= 63 mm, Steel steerer tube 1 1/8", Quick release 100mm

Travel63mm

Bottom Bracket

Integrated in the motor

Headset

Feimin, A-Head Tapered, Ball bearing

Stem

Haibike Components, TheStem ++, A-head, Bar bore: 31.8 mm, 12.0 °

Handlebar

Haibike Components, TheBar + Topflat, 640 mm

Saddle

Haibike Components, TheSaddle Junior

Seatpost

Haibike Components, The Seatpost +, Aluminium, Patent, 31.6 mm

TypeRigid

Pedals

Wellgo, LU984DU

Grips

Haibike, MTB grips

Groupset
Rear Derailleur

Shimano, Altus M2000

Crank

Steel, 32 teeth

Shifters

Shimano, Altus M2010, Rapidfire, 9 Speed

Cassette

Shimano, HG200, 11 - 36 teeth

Chain

KMC, X9

Chain Guide

Nylon dircetmount

Brakes

Tektro M282

TypeTektro Hydraulic Disc

Brake Levers

Tektro, M282, Aluminium

Wheels
Rims

Rodi, FW Disc, with eyelets, hollow rim, Aluminium

Spokes

Sapim, Leader, Black

Tires

Schwalbe, Billy Bonkers, 50-507, 24" x 2.00"

Electric Components
Motor

Yamaha, PW-TE System, 250W, 60 Nm, 20 km/h

Battery

Yamaha Lithium Ion 400Wh

Display

Yamaha, Side Switch, 1.7" LCD, 7 functions

Rider Notes
Riders Also Viewed

First added November 28

Last updated March 4

Not listed for 1,182 days