The German company Clean Mobile is located in Seefeld (near Munich), and they filed for bankruptcy in 2012 (owned by TQ-Group) to shed itself from the expensive development costs of designing and promoting their high-powered mid-drive. In the 250W power-restricted European Union, it wasn’t adopted for any street-legal E-bikes, and for the dynamic high-powered off-road European market…it looks like it simply came a little too early to the scene to take advantage of the profitable off-road E-bike boom we are just now seeing in 2014.
In 2011 they had contracted with the KTM eGnition, the 3rd Element eSpire, the Corratec eBow, the Ghost E-Ndure, and several models from PG-Bikes including the famously expensive Black Trail BT-01. The shining star of the Clean Mobile E-bikes was Audi’s concept show E-bike.
The 2012 drive was a very significant system with 150-Nm of torque, a 1200W motor and using a 48V Li-Ion battery. KTM and 3rd Element are now using the MPF drive, Corratec is using the well-regarded Bosch unit, and Ghost has decided to go with an affordable and reliable (but unimpressive) rear hub.
The stock battery pack is mounted through the split downtube, and its shape projects into a space that has so far been rarely used by E-bike designers. I like it! This bike also includes a semi-rigid detachable cargo case that mounts in the triangle. Of course, when the warranty expires, there is nothing stopping an E-biker with one of these frames from stuffing this roomy cargo case full of additional battery volume for more volts, more amps, or…a little bit of both!
Since the first Additive / Clean Mobile bike is a hardtail, it would really benefit from a suspension seat-post.
The first bicycle company that they have contracted with to use their new drive is Additive, a company that is famous for their cargo cases. It appears that Additive has decided just a short while ago to get into the bicycle business, and this year they also want to add an electric mid drive in their line-up. The projected retail price in Europe is 3,290 Euros ($4,490 USD at the Feb-2014 exchange rate).
The previous version of the Clean Mobile mid drive used a slightly smaller motor, and it used a dual chain reduction inside a housing. The new mid-drive motor is similar to the eProdigy and Bofeili drives, with a more compact concentric geared reduction inside the motor housing (similar to a geared hub-motor), but the new Clean Mobile motor is larger (reported to be 155mm in diameter, which is good news). The bike has a 48V motor with 1400W of power. The top speed is 45 km/h (28-MPH). The batteries capacity is 550WH (48V X 11-Ah). The torque of the motor is amazing 180 Nm.
Just like before, the left side of the drive unit is a finned aluminum heat-sink, so it is safe to assume the motor is on the left side, and the controller is on the right side. I would have preferred that they use a separate controller (like the long and thin tube-mount controllers used by ebikes.ca and also e-bikekit.com), but the larger size of this motor is such a big improvement, I don’t want to complain too much. We suspect that the motor uses a DUAL geared reduction, due to the width of the unit.
Written by Ron/Spinningmagnets, February 2014