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Old 12-13-10, 03:35 PM   #1
sunnyday
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This kit seems to get good reviews...

chain drive system with brushless assist motor...many people claim to like them better then hub motors :

http://www.kalkhoffusa.com/pedal-assisted-bikes.php
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Old 12-13-10, 04:16 PM   #2
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interesting concept
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Old 12-13-10, 04:45 PM   #3
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I have the same Panasonic drive on my Giant.
I run it through a NuVinci. I think it is fantastic.
I also have a Heinzmann hub motor on a Biria. The Panasonic drive is 350 watts. The Heinzmann is 400. Being able to take advantage of the NuVinci's gearing the amount of torque I can get from the less powerful Panasonic motor is vastly more than what I can get from the direct drive Heinzmann hub.
The Panasonic setup acclerates faster, can move more weight, and climbs better than the Heinzmann.

Last edited by Allen; 12-13-10 at 04:49 PM.
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Old 12-13-10, 04:50 PM   #4
sunnyday
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Quote:
Originally Posted by AllenG View Post
I have the same Panasonic drive on my Giant.
I run it through a NuVinci. I think it is fantastic.


can I ask where you got it..how much you payed..and what is your setup ?

My bike is a Giant Cypress...hybrid.
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Old 12-13-10, 04:53 PM   #5
Allen
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I got it from the local bike shop.
It was around $1200 several years ago.
The Giant was sold as the Twist/Lite but now Giant no longer uses the Panasonic drives and the current Twist has a front hub motor.

I also love the torque sensor throttle on the Panasonic systems.
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Old 12-13-10, 06:01 PM   #6
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The Panasonic drive is not able to retrofit to just any bicycle. It has to have a frame specifically designed for the mounting it requires. But the idea of a bb drive system is a good one and no one at this time makes one that will fit on a regular style bike. You can get a few kits that utilize a freewheeling crankset however that allow for use of the bikes gearing like this one here: http://www.ecospeed.com/
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Old 12-23-10, 06:06 AM   #7
GTALuigi
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the design seems to be better suited to create a good crank generator to power up more powerful stuff.
similar to that experimental motor bike that is pedal powered
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Old 12-24-10, 08:20 AM   #8
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very good for torque, high on maintenence, imagine it on even 1km road not paived.
Maybe ideal on impeccable clean Japanese roads.
MC
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