Haibike HardSeven 4 2021
Bike details
Key information split into simple groups.
Bike summary
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Frame aluminium
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Wheels 27.5"
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Travel Front 120mm
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Fork Suntour XCM
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Groupset Alivio
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Suspension Hardtail
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Motor Bosch 250W 65Nm mid-drive
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Battery Bosch, PowerTube, 400 Wh
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Drivetrain 1 × 9
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Brakes Hydraulic Disc
Recommended size guide.
SM
158cm - 170cm
MD
168cm - 179cm
LG
176cm - 187cm
Parts list
Main components, grouped by system.
Bike components
Frame
Frame
Haibike, HardSeven Gen3 Intube, Aluminium 6061
Suspension Fork
SR Suntour, XCM32 Boost DS, Steel spring/oil, Travel= 120 mm, Aluschaft 1 1/8 - 1 1/2" tapered, 15 x 110mm thru-axle Boost
Drivetrain
Rear Derailleur
Shimano, Alivio M3100
Shift Levers
Shimano, Alivio M3100, Trigger switch, 9 Speed
Cassette
SunRace, CSM90, 11 - 36 teeth
Crank
Steel, 38 teeth
Bottom Bracket
Integrated in the motor
Chain
KMC, e9S
Pedals
Freeridepedal, Aluminium, with Reflector,
Wheels
Rims
Schürmann, Yak25, with eyelets, hollow rim, Aluminium
Spokes
Sapim, Leader, Black
Tires
Impac, Smart Pac, 57-584, 27,5" x 2.25"
Brakes
Brakes
hydraulicDisc
Brake Levers
Tektro, M275, Aluminium
Cockpit
Stem
XLC, Alu, A-head
Handlebar
XLC, Topflat, 720 mm
Grips
Haibike, MTB grips
Headset
Feimin, A-Head Tapered, Ball bearing
Seat
Saddle
XLC, MTB
Seatpost
XLC, Aluminium, Patent, 31.6 mm
Motor & Battery
Motor
Bosch, Performance Line, 250W, 65 Nm, 25 km/h
Battery
Bosch, PowerTube, 400 Wh
Remote
Bosch, Purion
Fit data
Numbers for sizing and ride feel.
| Size | SM | MD | LG |
|---|---|---|---|
| Stack Reach Ratio | 1.541 mm | 1.449 mm | 1.435 mm |
| Bottom Bracket Height | 301 mm | 301 mm | 306 mm |
| Front Center | 732 mm | 768 mm | 805 mm |
| Rake | 54 mm | 53 mm | 53 mm |
| Trail | 106 mm | 107 mm | 107 mm |
| Stack | 624 mm | 633 mm | 660 mm |
| Reach | 405 mm | 437 mm | 460 mm |
| Top Tube Length | 574 mm | 610 mm | 640 mm |
| Seat Tube Angle | 74.8 ° | 74.7 ° | 74.7 ° |
| Seat Tube Length | 400 mm | 460 mm | 490 mm |
| Head Tube Angle | 65 ° | 65 ° | 65 ° |
| Head Tube Length | 125 mm | 135 mm | 170 mm |
| Chainstay Length | 490 mm | 490 mm | 490 mm |
| Wheelbase | 1217 mm | 1253 mm | 1291 mm |
| Bottom Bracket Drop | 54 mm | 54 mm | 49 mm |
| Wheels | 27" | 27" | 27" |
| Rider Min Height | 158 cm | 168 cm | 176 cm |
| Rider Max Height | 170 cm | 179 cm | 187 cm |
Model Overview
HardSeven 4 is a Haibike E Hardseven model. 10 e-bikes variations carry this model name so far. Take a sneak peek at all Haibike E Hardseven e-bikes models from 2021, by clicking here.
Model range prices
Haibike HardSeven 4 2021 is the most affordable e-bike of this model and has a price of 2760$. On the other hand, Haibike HardSeven 10 2021, is the most expensive and costs 4565$.
Safety
Your safety should be the top priority when you go for a ride. In short, make sure that you always use a helmet, high visibility clothing, and proper lights when riding at night-time.
Trail e-bikes average price
According to our math, the average price for a trustworthy Trail e-bike is 3365$. However, this doesn’t mean that if you spend less money on a Trail e-bike, you couldn’t get a decent one. As a general rule of thumb, you should always read reviews about the e-bike and its components before buying it to ensure you don’t pay too much.
When Haibike released this model in 2021, its price was 2760$. Comparing the average cost of a Trail e-bike to this one, you will see that HardSeven 4 price is 21.92% lower.
HardSeven 4 components
Fork
The fork installed on this bike is the Suntour XCM model. The travel on this model is 120mm. Bike forks absorb the shocks and give you a smooth and pleasant ride. To sum up, when buying a bicycle, make sure you get a fork that is capable of delivering decent travel.
Fork material
The fork on this e-bike is made out of steel, which is tougher than carbon in the case of an impact. However, it can add some extra weight to the e-bike.
Wheels size
The HardSeven 4 2021 e-bike is equipped with 27.5″ aluminum wheels when leaving the factory. 27.5″ wheels will reach higher speeds than smaller-sized wheels. However, these wheels have a slower top speed if you compare them to 29″ wheels.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The HardSeven 4 comes with Hydraulic Disc brakes. These kinds of brakes are among the most popular models used on bikes. To sum up, your safety is in good hands.
Sizes
This e-bike is available in 3 sizes. They vary from 158 cm – 187 cm (5.18 ft – 6.14 ft). In short, you can easily find one that suits you.
