Electric Mountain Bikes are proud to announce that Heinzmann now have brought out 2 new direct drive kits, One with a down tube mounted battery and one with a rack mounted battery. There are various top speeds and different power and speed options in true Heinzmann style. Conversion kits and custom built electric bikes with this conversion kit are available from now. Please ring steve for more info - 01458 550304
Intro
The new direct drive kits from Heinzmann have quite a host of features, and tick a lot of boxes that the Heinzmann classic kit does not, and also boxes that other electric bike and kit suppliers too have overlooked.
However when it comes down to the question of powerful, hill climbing, weight bearing, power house, load moving, grunt... the Heinzmann classic kit for it's weight is not to be beaten. Full Stop.
Now, apart from pure grunt there are other factors that consumers want from an electric bike, and to be honest, customers have had to go elsewhere for them... until now! 
Advantages of the direct drive motor
So, "what are the advantages of this direct drive kit then" I hear you all asking.
Well, for a start, the experience of riding is all much more automatic and intuitive, it is near silent because of the brushless direct drive motor. A geared hub motor is not. so in a word refined is a good way to describe this new kit.
This silent automatic experience is what the market has been demanding (I have watched it grow year by year whilst visiting the largest trade show in Europe, Eurobike over the past 6 years) and now Heinzmann has not only caught up with, but overtaken its competitors - just like that, whoosh!
Power from Regenerative braking
One of the first questions I am asked by a newcomer to electric bikes is, "does it charge the battery when you are pedaling or going down hill?".
Most kits on the market do not, but this kit has 3 levels of regeneration, so if you are going down a big long hill, at the press of a button or by touching a special compatible brake lever with a switch in it, you are using the motor to slow you down , instead wearing your brake pads out, and recharging your battery a the same time. Heinzmann say this can give you an extra 15% capacity on a journey.
I am so glad that now I can answer this question with a "Yes" I will be forever grateful to Mr Heinzmann.
Disc brake compatible
Another great feature with this kit is that it is disc brake compatible so, if you want to put the motor either in the front or rear wheel and you run discs or vee brakes.
Power delivery
Another very nice touch from Heinzmann is the way in which the power is delivered to the motor so seamlessly, as I said this kit is much more automatic way of getting power to the driving wheel. Power is delivered by feeling how much tension there is at the chain at any given time.
If you are cycling up Mt. Snowdon then there will be a lot, so the chain is tight and the power delivered is up to 60 Newton meters (that is a lot for any electric bike made by any manufacturer anywhere).
So in contrast, when you are cruising along country lanes or around town, the tension in the chain is low, and the assistance that the motor will giving will also be less and quite rightly so as there is no great demand for power. If you want more power on the flat then you move up a level with the assistance level button. which brings me nicely onto my next topic.
Assisted Pullaway
Also a very clever idea that has been incorporated is to give the rider assistance in pulling away up hill or in any situation for that fact.
By pressing a button on set off it gives the rider a steady extra boost of power until 4 mph, by which time the rider is well and truly on their way. 
LED Display
The display accurately displays the remaining capacity of your battery with a 6 level indicator incorporated, showing which level of assistance you re currently using, The speed, total distance travelled, distance travelled since last reset, average speed and even the amount of time and the distance you will be able to travel at your current pace until your battery is empty. It has a backlight light so you can see the display at night and if this is all not enough, you can also set it up with a pin number so it will lock the motor to deter theft! Although I would advise the use of a good old fashioned bike lock too!
Another groundbreaker is battery recharge time. With a standard charger the largest 36 volt 14.25 Ah capacity down tube battery will recharge in 8 hours or 4 hours with Heinzmanns fast charger. The 11 Ah rack mounted battery will recharge in 6 or 3 hours. Both batteries are watertight.
Rack Mounted Battery
Another very noticeable feature you will see is the choice of the battery being either mounted on the rear rack as in the photo above or alternatively mounted on the down tube as in he picture blow this text. Also he battery has magnetic connectors that will lock the battery into position and hold it solid (as well as a key for security). The battery can be charged on or off the bike.
Another very noticeable feature you will see is the choice of the battery being either mounted on the rear rack as in the photo above or alternatively mounted on the down tube as in he picture blow this text. Also he battery has magnetic connectors that will lock the battery into position and hold it solid (as well as a key for security). The battery can be charged on or off the bike.
Technical data
Control unit | |
Operating voltage | 36 V |
Current max. | depending on version & usage 10 .. 33 A |
Motor | |
Type | PRA 180-25 |
Motor nominal voltage | 22.8 VAC |
Output | 250 W (DIN EN 60034-1) |
Speed when riding on the level | depending on version & wheel diameter approx. 60 ... 330 1/min |
Nominal torque | 11.4 Nm |
Impulse torque | up to 60 Nm |
Thermal overload protection | Type KTY84-130 |
Motor diameter | Ø 220 mm |
Weight | Front wheel motor approx. 4.5 kg Rear wheel motor approx. 4.7 kg |
Degree of protection | IP54 |
Battery | |
Type | Lithium-ion battery |
Nominal voltage | 36 V |
Capacity (Rack mounted) Capacity (downtube) | 11 Ah / 400 Wh 14.25Ah / 513 Wh |
Charging time | approx. 6 h with charging current 2 A |
Temperature ranges Normal operation Charging Storage | -10 45 °C 10 35 °C -10 45 °C |
Prices
Heinzmann Direct Drive Rear rack mounted kit - £1150 (36 volt 11 Ah Battery)
Heinzmann Direct Drive Downtube mounted kit - £1243 (36 volt 14.25 Ah Battery)
Spoking of motor into a quality rim with stainless spokes - £85
Mounting Kit to customers bike £95
More Info
Heinzmann Direct Drive Rear rack mounted kit - £1150 (36 volt 11 Ah Battery)
Heinzmann Direct Drive Downtube mounted kit - £1243 (36 volt 14.25 Ah Battery)
Spoking of motor into a quality rim with stainless spokes - £85
Mounting Kit to customers bike £95
More Info
Here are some links to direct drive pdf 's from Heinzmann.
Below is an overveiw pdf
heinzmann direct drive
Below is the user manual that comes with every kit.
heinzmann direct drive user manual
Below is instructions for fitting the direct drive kits
heinzman-direct-drive-fitting-instructions
below is heinzmann information about the direct drive down tube battery
heinzmanne-e-bike-downtube-battery
below is heinzmann information about the direct drive rack mounted battery
heinzmann-e-Bike-Battery
Below are the dimensions needed to fit he downtube battery.
There should be no problem fitting the battery to a standard frame over 18".
Here is a video made by Heinzmann showing how to fit the system with the rear rack Kit.
Thanks for read Heinzmann direct drive Retrofit kit
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