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Uphill assist for KV4

Optional

For those of us who live in hilly landscapes there is an optional electric power unit, the uphill assist for KV4.

This electric drive unit is mounted on the main 40 x 40 mm boom inside the nose cone. The motor is linked directly to the crank by means of a second chain.

This way the uphill assist unit will always use the same gears you are using. The motor runs at maximum efficiency when pedaling speed (crank revs) is between 80 and 90 revolutions/min. This is the most efficient range for your legs as well.
The motor unit has a freewheel so it will not slow you down when not in use.

250W 24V Electro motor unit

With 1:10 gearing, freewheel sprocket 14, electronic controller, cables and handlebar grip.
With Fittings to mount the motor on the front end of the boom (inside the nose cone)
With Freewheel -crank with chain ring.
3.5 kg

Controller max

With speed limiter and cyclist action detection

controller
Required for European legislation. With this unit the motor will only work if you yourself cycle as well and if the speed is below 25 km/h
0.1 kg

 

 


Battery pack Li Ion 11 Ah 24V

Offers a 20 to 40 km range under normal conditions, the pure uphill range will be considerably less.
2.5 kg

Battery pack Li Ion 16.5 Ah 24V

Offers a 30 to 60 km range under normal conditions, the pure uphill range will be considerably less.

3.7 kg


Charger 2A for Li Ion

input 230V~ 50Hz
Comes with a Dutch / German (SHUKO) mains plug

Quick charger 10A for Li Ion

input 230V~ 50Hz
Comes with a Dutch / German (SHUKO) mains plug

Quick charger 16A for Li Ion

input 230V~ 50Hz
Comes with a Dutch / German (SHUKO) mains plug

The uphill can be obtained from Lohmeier-Akkurad in Germany
They have developed the set described on this page.
(Sizes of battery packs and types of chargers tend to change from time to time)
You can contact them via
http://www.akkurad.com (in German)
or
http://translate.google.de/translate
(Google machine translation)
Have a look at “Tretkurbelantrieb” (chain drive) T25
Please mention you need a complete set it for a KS4 from Dutch Speed bicycles.
(the same set goes into the Alligt Alleweder A4)
They read and write English

pdf Free Manual

(not kept up to date with possible changes by Lohmeier-Akkurad)