german engineers unite to design sophisticated electric mountain bike german engineers unite to design sophisticated electric mountain bike
jul 28, 2015

german engineers unite to design sophisticated electric mountain bike

german engineers unite to design sophisticated electric mountain bike
image courtesy of BMW





what do you get when a handful of german engineers from some of the biggest technology companies team up to create an electric mountain bike? you get a the HNF heisenberg ‘XF1’. together with BMW and bosch, they designed an advanced frame technology for full suspension ebikes with a mid motor. the integrated swingarm developed and patented by BMW allows the bosch motor and drivetrain to vibrate freely. this newfound freedom enables a combination of rear suspension and a long lasting, maintenance free carbon belt drive for the full suspension ebike that leads to impressive riding and handling characteristics. 

image courtesy of HNF heisenberg






HNF heisenberg’s chief designer karlheinz nicolai and his team implemented this frame technology to their ‘XF1’ frame from their line-up to create fully autonomous configuration. the kinematics are thoroughly integrated above the middle motor and securely locked it to the frame. the belt tension is kept constant amid the chainring and hub, allowing for ideal transfer of high load peaks from the bosch electric motor. compared to other rear suspension templates that are optimized for muscular power, these bikes don’t stiffen up in the rear construction when the motor kicks in, during acceleration, long rides at high speeds or gradients. the HNF heisenberg ‘XF1’ remains responsive and ensures good grip and high traction, and since the proportionate rider power is relatively low, there are no unpleasant rocking movements when accelerating or braking. even on extremely uneven terrain, clean and smooth pedaling is possible. 

BMW ‘i’ division patented the swing arm system 
image courtesy of BMW


the bosch electric motor 
image courtesy of HNF heisenberg


the lithium ion power pack by bosch can go 130 kilometers on a single charge 
image courtesy of HNF heisenberg


maintenance-free belt drive 
image courtesy of BMW


rear hub gearing 
image courtesy of HNF heisenberg


carbon fiber drive kit 
image courtesy of HNF heisenberg


image courtesy of HNF heisenberg


image courtesy of HNF heisenberg


handle bar display system 
image courtesy of HNF heisenberg


the brake system features four pistons 
image courtesy of HNF heisenberg


image courtesy of BMW


  • Where could I and test one of these bikes with the option to purchase?

    Demond Clancy says:
  • Nice – question?

    Does the power pack have to be the shape it is????…Why not a power pack that is cylindrical???

    william says:

have something to add? share your thoughts in our comments section below.

comments policy
designboom's comment policy guidelines
generally speaking, if we publish something, it's because we're genuinely interested in the subject. we hope you'll share this interest and if you know even more about it, please share! our goal in the discussion threads is to have good conversation and we prefer constructive opinions. we and our readers have fun with entertaining ones. designboom welcomes alerts about typos, incorrect names, and the like.
the correction is at the discretion of the post editor and may not happen immediately.

what if you disagree with what we or another commenter has to say?
let's hear it! but please understand that offensive, inappropriate, or just plain annoying comments may be deleted or shortened.

- please do not make racist, sexist, anti-semitic, homophobic or otherwise offensive comments.
- please don't personally insult the writers or your fellow commenters.
- please avoid using offensive words, replacing a few letters with asterisks is not a valid workaround.
- please don't include your website or e-mail address in your comments for the purpose of self-promotion.
- please respect jury verdicts and do not discuss offensively on the competition results
(there is only one fist prize, and designboom usually asks renown professionals to help us to promote talent.
in addition to the awarded designs, we do feel that almost all deserve our attention, that is why we publish
the best 100-200 entries too.)

a link is allowed in comments as long as they add value in the form of information, images, humor, etc. (links to the front page of your personal blog or website are not okay). unwelcome links (to commercial products or services of others, offensive material etc. ) will be redacted. and, ... yes, spam gets banned. no, we do not post fake comments.


a diverse digital database that acts as a valuable guide in gaining insight and information about a product directly from the manufacturer, and serves as a rich reference point in developing a project or scheme.

technology news