Golden Pie V5 Golden Motor Hub Kit

Front or Rear Drive *
* Professionally Laced into a Custom Built Rim with DT Swiss Spokes (adds one weeks build time): *
Throttle Type *
Add a Torque Arm (Recommended)
Make it a kit by adding a top grade PANASONIC battery
Add a 5.5mm Smart Charger for your Battery (not included)
Add Solder Sleeves for power wiring $17

Current stock: 0



  • For front or rear wheel
  • Luna Cycle black edition
  • The latest version of the magic pie kit
  • Built in sine wave controller
  • Can be used with 24 -52v battery
  • 25amp controller for up to 1500 watts of power, 1000w continuous
  • Programmable with optional cable

manuals-icon.png Read this awesome install guide  

The V5 is the latest version of the golden motor magic pie  The Luna Cycle version of this kit is solid black which we think is a big improvement.

If you think you know the golden pie motor it has improved vastly with the vector sine wave controller. Now it is even more efficient, reliable, quiet and smooth.  

Watch this video for more information on the kit:  Click here

For a wealth of golden pie videos for information, installation, and upgrading check out this page: click here for youtube videos

Regarding Installation

Click here for install guide 

The Magic Pie v5 is an easy 30 minute install. The hardest part is installing the tire. You may run into difficulties with your drop out and may need to install drop outs.

The trickiest part is installing the screw on cassette (this piece is sold separately) so that your rear gears still work properly.
Make sure you use the spacer ring that comes in the kit between the motor and the freewheel. Also watching this video is highly recommended:

See our Knowledge Base for more documentation

Professional wheel building



All our kits come with the option to be hand built into your choice of Alex wheels.  Our bicycle wheel builder is top notch. We use premium DT Swiss Champion spokes, brass nipples, quality spoke prep and your choice of Alex wheels.

We really recommend this option for a quality hub motor kit.... the stock rim made in china is much lower quality components and the spokes will need to tightened after a few rides.


Regarding battery Options

This kit comes with everything you need to convert your bicycle minus battery and charger which you can add now or later. 

Any of our 36, 48, or 52 volt batteries will work with this kit. 

52 volts will get you more power and higher top speed. 

48 volt battery will get you a little less power and top speed  but will be more reliable.

Once you have picked the voltage then you just need to pick the size. The higher the AH the farther the battery will take you.
A 10ah battery will give you 25 miles on average. A 20ah battery should get you 50 miles. More ah means bigger in size, more weight and harder to mount. 

This kit is pre-programmed for 48V/52V batteries.
If you want to use this kit with a 24V/36V battery you will need to reprogram the controller with the Golden Motors program wire for Vector controllers. This item is not included in the kit though we often have it in stock on the site if needed.




Kit Includes
Magic Pie 5 hub motor
Motor comes pre built into 26 inch rim front or rear (adds few days lead time for Alex rims to be professionally laced)
Sine wave controller (built into motor)
Quality twist throttle
Quality quick release electrical connectors for easy installation


Kit Options
All batteries we offer from 36-52v are compatible with this kit. 36v may need to be configured for that voltage however. See our documentation for details
Optional Torque arm at no extra charge. Use this listing if you want more than one
Solder sleeves for making connection from battery to controller. See battery documentation below for instructions


Motor Features
Built in controller for less wiring mess and easy installation
Built in temp sensors so the motor shuts down before it fries
Easy disc brake mounting
High efficiency, Torque and speed
Large diameter for better efficiency
Super slim to fit most drop outs.


Controller Features
Sine wave controller!
Regenerative braking charges your battery when going downhill
Ingenious design build into motor (no wire clutter!)
24-60 volts flexibility
25amps max 
Fan cooled for effective cooling
USB programmable



Installation and Important Documentation

For front hubmotors, we recommend using a torque arm (or two). See this link for what a torque arm is.

It is not advisable to use a front hub with suspension forks, we recommend using a rear hub if you have suspension fork.

After hubmotor installation it is recommended that you check spoke tension, tighten spokes if needed, and recheck tightness after the first few rides. All wheels should have spokes checked but handbuilt is better, generic option is machine laced from the factory which is not as high build quality as our hand-laced wheels using quality Alex rim, DT Swiss spokes and Spoke Prep. If you want the best wheelbuild out of the box you want the custom wheelbuild option.

Note: Standard generic rim 1.5". For wider rim go with custom built option

9 Reviews

Jul 12th 2017

MP 5

i went with a hub motor because of the cost/relative ease of installation. I have had it almost a year now and here some thoughts/suggestions.

for the donor bike, I would lean toward a frame that has horizontal drop outs. Mine is a Specialized mountain bike which has vertical drop outs, and keeping the wheel in the frame has been a challenge. I am sure somewhere there are torque specifications on the subject. Ultimately, locktite and torque arms solved this. I would suggest torque arm on both sides. Grin Technologis makes a beefy one. I wish someone would devise a means of securing these things with something besides belt clamps.

I have the optional GM LCD screen. It went through a period where it had an error code 9, and wouldn't allow the bike to function. I could get around it be unplugging it and either plugging it back in repeatedly or just not using it at all. After a month or so, it finally went back to working correctly on it's own apprently.

A hub motor is heavy, and hard on spokes in my experience, so I would be careful jumping curbs or riding on ungroomed trails. Oddly, I have had over half of the spoke nipples come loose or completely off. I never had this happen with any of the motorcycles I ever owned. Luckily, they are trapped inside the wheel and can be recovered. Unluckily, because they are aluminum you can't use any magnetic tool to hold in place to get started on the spoke. My solution is to enlarge the access hole for each spoke with a drill bit and use a surgeon's hemastat to put back on the spoke (with loctite) and tighten down with a small flat bladed screwdriver. I can tell when one or more is loose because the back end feels mushy, I assume from the other spokes flexing. if you can see the threads, you probably should check for tightness. When I bought this kit, there was no option to have it laced with higher quality spokes.

I have the bottle type battery. Due to the number of times I had to take this thing apart to fix the spoke issue, I made up a quick disconnect between the battery and the motor which may save you some time.

I weigh around 190#. I get almost 29 mph on a flat, hunkered down to decrease wind resistance. I have the 13AH, and can go 25 miles for sure. I only run it down to 3 bars (out of 5) and go 18 - 22 mph most of the time. I added a larger crankset to help get the speed up.

Aug 14th 2016

Not as rosy an instalation as others have reported

I'm installing the 26" rear wheel Complete Magic Pie 5 Kit on a 2006 Cannondale Mountain Bike and have run into numerous delays.
1. My disc brake mounting screws were too long and rubbed on the motor housing when fully tightened. My LBS did not have shorter screws and grinding them just served to mess up the threads. I ended up using washers as a work around.
2. My Avid BB5 calipers were too wide and also rubbed on the motor housing. Again back to the LBS where I purchased a Hayes MX5 caliper that is less obtrusive and does not rub.
3. The freewheel removal tool with hole enlarged to at least 6/10 inch is required. My drill bit set only goes up to 1/2" so it was either off to Home Depot to purchase a larger drill bit or find the tool online. I ended up ordering the freewheel tool already bored out from
4. My Magic Pie 5 Complete Kit and DNP 9 Speed Freewheel (ordered separately) did not come with the required spacer to prevent the freewheel from binding on the motor. Luna customer support (which is always excellent) is sending one although it appears it may be lost in the mail and apparently they don't have any more (sigh).

So my install has been painful and slow. Hopefully I will eventually get it working. Hopefully sharing my experiences will help others be better prepared.

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