Haibike HardFour

The 2021 Haibike HardFour is a versatile e-bike designed specifically for younger riders. It is available at a price of 2299 EUR and offers a solid spec that is suitable for both everyday use and light off-road riding. The frame is made from 6061 aluminium and features a quick-release mechanism and a post-mount disc brake mount. The maximum load capacity is 80 kg, whilst the bike itself weighs 20 kg.

Braking performance is provided by Tektro M282 disc brakes with a diameter of 160 mm, operated by Tektro M282 aluminium brake levers. The drivetrain is a 9-speed Shimano Altus M2000, operated via Shimano Altus M2010 Rapidfire shifters. The SR Suntour XCR LO Lockout fork, featuring a steel spring and 63 mm of travel, provides additional comfort and control on uneven terrain.

The HardFour’s drive system is powered by a Yamaha PW-TE motor with an output of 250 W and a torque of 60 Nm. The motor is powered by a Yamaha lithium-ion battery with a capacity of 400 Wh, which is controlled via a Yamaha Side Switch display.

Other features include Wellgo LU984DU pedals, a Shimano HG200 cassette with 11–36 teeth, and a KMC X9 chain. The handlebars are Haibike Components TheBar + Topflat with a width of 640 mm, whilst the grips are from the Haibike MTB range. The stem is a Haibike Components TheStem ++ model, A-Head, with a 31.8 mm handlebar clamp and a 12-degree angle. The headset is also an A-Head Tapered model.

The rims are Rodi FW Disc hollow-section aluminium rims with eyelets. The tyres are Schwalbe Table Top Performance, size 57-507. The front and rear hubs are from the Haibike Components TheHub + series. The saddle is a Haibike Components TheSaddle Junior model, mounted on a Haibike Components The Seatpost + aluminium seatpost with a diameter of 31.6 mm.

Overall, the 2021 Haibike HardFour offers a balanced combination of performance, comfort and reliability, making it an ideal choice for young cycling enthusiasts.