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Feedback on Magic Pie

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GM Brazil:
Not received yet, but tracking is ok. It will arrive by the weekend or next week, this depends on the border control. I just want to share one idea:

2)Ideas

On the dual pie setup the throttle by default acelerates just one of them, then the wires for the second controller pass by a swith, so when activated it will control the second motor too. So I can choose when I really need extra power, It could improve the range of a two motor setup!
I'm not sure if this is a real advantage, but sound cool, like a 4x4 car that I can shift between FWD or 2WD.

Hardcore:
http://www.youtube.com/watch?v=mtqe-mod-zc

haha ;)

GM Brazil:
1)Negative (with reasons)

* It is not possible to center the rims properly with the bike frame! You really need to look up for this!
* The package did not have an professional look, it came very well protected, but did not have the appearance and cleanness at the same level as the product!
* The hot glue that fix the battery cells pack inside the case cames loose during transportation, try to use some spacers between the cells plastic supports and the caps, this will make the hot glue unnecessary.
* All the connectors should come ready to use, even the connectors to the front and rear lights (not only the feeding, but the connector for both lighs and button), to be really plug and play!
* The manual contains instructions for the magic controller and this make a lot of confusion about the MP functions. The manual also is too simple and do not details things like the correct position of the washers, warning o be care in fixing the cable to not touch the disk brake, use of the battery and recharger, etc.
* The battery slide plate did not came with the screws and nuts, the locking area was not very good (the lock pin did not pass it trhough, just half way of a 1mm thick!) and the battery makes some noise wile shaking at the plate, see the ideas for the solution.
* The battery cable and the motor cable should came already soldered or with connectors ready to plug one on another, not everybody have the equipment and skills to do so and in Brazil was impossible to find these type of connectors.
* the rack (001) is not so good as it type of fixation is very rare on new bikes, but the rack 002 solves it for good, so this is not a real problem anymore.2)Ideas (improvements)

* It should came with some wide velcro to wrap around the battery and rack to help keeping the battery from shaking on the sliding plate. I tested it and now the ride is much smoother.
* I know that the BMS and controller have a lot of protective circuits, they are great, but a fuse at the battery case would be VERY nice. The fuse could be at the battery cable or in the case (more convenient)
* You could use bluetooth, not to control the pie, but to send feedback information like speed, distance, power consumption, status of malfunctions, battery status like voltage, total use hours/km/Wh/Ah, etc. Like a Cicle Analyst but much, much, better! Would be like the brains of the pie and could be the way to program some functions as speed limits, etc.
* The thumb throttle looks like it has been designed to be used at the left hand, a mirrored version of the actual would be better to use with the right side
* The shaft MUST BE HARDENED (some type of heat treatment or other surface hardening ways), is too soft!!!
* Anodized aluminium instead of painting, this will increase the general strength of the motor and will have a better looking product!
* The power brake levers are not good for disk brakes or V-brakes, you should have specific ones
3)Positive (with examples)
Really easy to install
Really good quality parts
Good looking
Serial numbers on the battery, charger. Good information and warning adehsives where they are necessary (battery, plug polarity, etc)
Nice stainless steel screws with locking washers.
Good cables, flexible enough.
Easy to use, easy to recharge the battery, easy to put in and out the battery from the bike.
Nice torque!!!

I really do not have all the words to say how good it is and how I'm satisfied for now. It is so natural to ride the converted bike that I fell I had it for years, or at least should had it long before. I'm sure will change my cost and heath for much better. It is very fun!

Yao, You know I have the better interest to the improvement of your products, please feel free to ask me more. I'm a Mech. Engineer and for sowe can have a nice technical chat. All the things at the negative parts are easily solved (except for the rim centering problem, it could need a new design for this component) I listed them all so we can have even better products from GM!

I hope we have a great future together!

link for the review: http://goldenmotor.com/SMF/index.php?topic=1623.0

GM Brazil:
About the package.

Here are some examples. I do not know the sources and/or manufacturers of theese photos, they are just for example of better packaging using Styrofoam

GoldenMotor:
Dear Yacamin,

We really appreciate your feedbacks and suggestions on improvements of our products. We will implement them as quick as possible to make our products better and better.

We do listen all your feedbacks and comments all the while. That's the reason we can come out good products like MagicPie kit and battery packs.

Thanks again for your support.

Golden Motor

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