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Dual Drive Diamond back

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Who42:
Dual Drive Diamond back :o

I thought I might try a lite Dual Drive and it was very successful it pulls well up hills and on the flat it dose about 30km/h  ;D
Its nice and lite at about 23kg , I tried a Dual Drive MagicPie before but found it a bit to heavy at over 33kgs and I had to run Dual 48v LiIon batteries as well to supply enough amps :(
This Dual Drive is a good compromise and I am very happy with the results :D

Bike Specs
Diamond back  Apex.
Alloy Frame.
18 speed Shimano Gears.
Front Suspension Falks.
26'' Double wall rims.
26'' x 1.75 Low friction tiers
Front Disk Brake.
Rear Clamp brakes.
Dual Drive 2 x Wheel Ink 350w BLDC Hub motors.
48v 12amp Golden Motor LiIon Battery.
2 x Golden Motor Cruize Controllers.
Front and Rear LED lights.
Cycle Computer / Speedo

Thaialien:
Hi Who43 and others

When you going to make dual drive MW 12 B on 48v and on tires 3.50 x 8''  M/c. and folding to sell 48v batt pack YOU WILL BE SUPRIZED ! WHAT FUN YOU CAN KEEP IN THE BOOT/TRUNK  ;D

But you need some 135mm frpnt forks  and a helmet ! and glasses ! {for the dust and insects) I have rwo of these on the back of a TRIKE!

John L

MonkeyMagic:

--- Quote from: thaialien on September 23, 2011, 12:19:12 AM ---When you going to make dual drive MW 12 B on 48v and on tires 3.50 x 8''  M/c.

John L

--- End quote ---

Probably never..... Who42 from what I understand, only builds quality ebikes :D

hehe

Thaialien:
Hi Monkeymagic and all
Just because the wheels are small the frame is not on adult bikes ....

Japanese have adult folding bikes with 4inch rollerblade type wheels ! and you are sitting nearly as high as standard bicycle !

Maybe these are suitable for adults too

http://www.goldenmotor.com/frame-unicycle.htm
 

Leslie:
IS that a mini motor running at 48v or have I missed a new model release Mini motor?????

48v doesnt work kindly with the Mini motors from memory.  Check your windiings insulators for heat damage if youre not sure and wish to continue..

When running the little brushed motors I have, on a 26" wheel @ 24v it worked good.  As soon as I went up to 26" wheel @36v it burnt out.  However the little brushed motors run for years on a 20" wheel @ 36v.  So the dual drive may saving much load as long as both motors are running when going up steep hills.



Keep us informed how the dual 48v goes please.  Because if this works you have made the Mini motor work reliably at 48v IMO.

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