Bafang BBSHD Mid Drive Ebike Kit
Bafang BBSHD Mid Drive Ebike Kit
Luna  Color Display
Bafang BBSHD Mid Drive Ebike Kit
Bafang BBSHD Mid Drive Ebike Kit
Bafang BBSHD Mid Drive Ebike Kit
Bafang BBSHD Mid Drive Ebike Kit
Bafang BBSHD Mid Drive Ebike Kit
Bafang BBSHD Mid Drive Ebike Kit
Bafang BBSHD Mid Drive Ebike Kit
Bafang BBSHD Mid Drive Ebike Kit
Bafang BBSHD Mid Drive Ebike Kit

Bafang BBSHD Mid Drive Ebike Kit

Choose Your Programming Level *
Bottom Bracket Size *
Chain Ring *
Display Options *
Throttle Choices *
Bafang Handles with Ebrake Cut Off
Make it a kit by adding a top grade battery
Add a Smart Charger for your Battery (not included)
Add a Multimeter (Recommended)
Optional Programming Cable
Add a Gear Sensor
Add a Luna Designed Chainring
Add Custom Machined Install Tool
Add a Luna Mighty Mini 30T Chain Ring
Add A Custom Luna Eclipse Face (Face Only)
Add a Luna Eclipse Sprocket (Sprocket Only)

Current stock: 0
  • The most powerful and reliable Mid Drive Kit on the market
  • Includes Luna's exclusive free spacer kit for easier installation
  • Complete redesign of the BBS02 series for more power
  • 1600 watts of peak power (in off road mode)
  • No technical knowledge necessary to install
  • Water resistant 
  • For 48v and 52v batteries


(BBSHD mid-drive motor show with Eclipse ring gear attached.)


Watch Luna BBSHD Installation Video Here

Read Luna BBSHD Manual Here

Read Mid Drive Kit Install:  PART 1  -  PART 2  -  PART 3

Tons of of build reports on different bikes HERE

Watch the Luna BB Installation video HERE

Watch the BBSHD uphill ride video HERE

Watch the unboxing video HERE


Luna Cycle is the worlds premier BBSHD dealer and do our best to offer the best options and support on this equipment.


The BBSHD is a complete redesign of the extremely popular mid drive the BBS02, every part is stronger and better. The BBSHD put out 150nm of force so much torque that you can stay in one gear and not shift as much as you would in the smaller drive.

This kit is for bottom bracket sizes of the most common sizes 68mm and 120mm (fat bike). Other BB sizes can be made to fit with our spacer kit. Read up about dealing with intrusive chainstays (article on fitting here)

The BBSHD heralds a new age of factory installed mid-drives. Unlike most other factory mid drives the BBSHD is designed to be mounted onto almost any bicycle currently manufactured. You can mate the BBSHD to any bike with a bottom bracket that is anywhere from 68mm to a much wider 100mm fat bike. The BBSHD is even now made in odd sizes (72mm & 120mm), including extra fat. We include with every kit so that you can make your BBSHD fit for almost any bottom bracket. If in doubt order the next size up and our spacers will help you make the kit fit.

Install it on anything and ride it anywhere. With the proper gearing the BBSHD will easily climb stairs, go well over 30mph on the flats and much, much faster down hills. Singletrack trail-riding, cargo bikes, high-speed commuters the BBSHD can do it all.

The BBSHD excels at singletrack riding (article on singletrack testing here) as well as soft sand (article on soft sand testing) and works best with the Lunacycle Eclipse ring (independently reviewed here) or the Mighty-Mini chainring (available here). The stock 46T steel chainring on this kit is very heavy and has too many teeth for trailriding, although it works fine for commuting.

Its predecessor the BBS02 would sometimes falter if run at peak power for too long of a time but those days are over with the BBSHD. Completely redesigned with thicker windings, giant heat dissipating fins and a powerful 12 FET controller. There is nothing else like it on the market.

Go ahead, beat on it, the BBSHD was designed to take all of your abuse and more.

We are proud to be the first dealer in the world to have this drive in stock. We are shipping it with the controller hot rod programmed so not only can you get pedal assist when you want you can also get full throttle when you want it.


Regarding the BBSHD and Legal Street Use

Our drives come programmed for 750w. You can choose to have us program it with our hot rod settings if its for off road use on private property such as for  a hunting vehicle or pit bike.

This  drive is capable of 1500 watts in the right power settings. 

If you do choose 1500 watt model, we suggest you also buy a programming cable so that you can change the firmware back to make it legal for street use.


Which Bike?

The Bafang drive mounts in place of your current bike's bottom bracket and replaces your bike's crank set and front derailler if you have one. 

The BBSHD can be mounted in a wide range of bottom brackets from 68mm to 120mm. To pick which motor works right for you: please see this guide.  For most applications you need the standard size (68mm), and can even go a few millimeters over the usual limit of 73mm with standard by using loctite on the axle instead of the second lockring.

Our BBSHD kits come with a spacer kit which is enough for most conversions. If using a 100mm fatbike motor on a regular bike (73mm) some additional spacers may be needed and can be bought here.

Many people have found that the Bafang can actually be mounted to many types of trikes, which can be fun since many trikes are not good candidates for hub motor kits.

Maybe you have an old donor bike laying around you want to convert, or maybe you are wide open to which bike to buy and install this kit on.

If you are also shopping for a bike to install this kit, that is perfect. We recommend you pick a bike that is known to be compatible with this drive and has no known issues. Ideally a build report has been written on our builder forum so that you can follow step by step someone elses building steps.

Here is a post on our builders forum  with a collection of build reports you can scroll through. 


Which Options?

Here is some help picking which options you have available during check out.

Battery Choices

This is a 30amp Kit and includes everything you need to install the kit on most bikes except for battery (which you can add at discounted price) all the batteries listed in the add as add ons are excellent choices for this kit.  We have picked our most popular batteries as kit options and have made them available at a discounted price.

However you are not stuck to just these choices. 

All of our 48v (see here) and 52v (see here) batteries are compatible with this kit as well if your looking for something larger in capacity. (more amp hours = larger size and farther range) We especially recommend any 48v or 52v battery made with Panasonic PF or GA cells for the best fit for performance and range. 

Battery dimensions are on each separate battery listing. We highly recommend making a cardboard mockup of the battery before purchasing to physically see if it will fit in your frame.


The Gearsensor

The Gearsensor is a $40  add on accessory that automatically senses you shifting when you change gears and cuts the motors power for a fraction of a second resulting in a smooth shift.  Now with optional Gear Sensor...get almost the same BBSHD kit  as some sale branded the "E-rad"  at a greatly reduced price.   This kit will come with an extra connector so you can add the gear sensor now or later without losing your e-brakes. We highly recommend the gear sensor upgrade which will give you butter smooth shifting. 

Here is a link to the install guide on the Gear Sensor. This gear sensor is very popular option because before luna, only a few sellers were able to sale this and sold it at a huge mark up.

eBrake Options

The Bafang has the option of connecting with your bicycle brakes and automatically cutting off power when the brake is tapped.

The kit will work with or without the brake sensors plugged in.

The Bafang kit comes stock with new brake handles that can replace your existing brake handles.

You also have the option of getting magnet sensors which allows you to adapt your existing brakes.  This will help with users who have hydraulic brakes the sensors are not compatible with. 

You can also choose to go with a brand new set of hydraulic ebrakes with the sensors built in. 


Chain Ring Options

The Bafang comes stock with a 46 tooth chain ring option which works great, but is heavy and some consider it ugly.

You can upgrade chain rings to something with a smaller tooth count which will give you lower gearing and a few less mph of top speed but much more torque. Also the Upgrade chainrings are lightweight aluminum and look "blingy"

There are a number of different chain ring options which can get confusing.

If you want an easy choice, we recommend the Luna 42 tooth aluminum chain ring. it looks better and is lighter than stock with lower gear ratio, but is only $40 option. Read more about it here.  This ring you can interchange to a bigger gear like in the picture above,so  you can go from 42 to 52 tooth for road speed freaks. 

For more bling you can go with the Luna Eclipse (usually back stocked) or the Lekkie 42 tooth, both awesome but more expensive options.

The Luna Mighty mini is excellent for single track riders and turns the BBSHD into an off road monster, while loosing only about 4 mph in top speed. We also highly recommend this option. 

All these chainrings have different offsets which effects your chain line which can cause you to lose a few gears when shifting. If this is a concern, for the chainring with the best offset and therefore the best chainline go with Eclipse, this will be most likely to let you use all the gears.  Regardless of which ring you pick, when you upgrade chain rings we throw in the stock chain ring as well so that you can try both.

In reality its something you should not worry to much about, most chainrings will be compatible with most bikes.  Usually when there is a compatibility issue it is with a fat bike. Since when you go with an upgrade chain ring, you will also get the stock ring, you will have back up in the off chance you do have compatibility problems. 

Watch our video on different chain rings

More information on chain ring selection. (Also check out the BBSHD wiki for some basics of chainring choices.)

Here is a link to an independent review of the Luna Eclipse chainring.


Programming Cable option

The Bafang has many setting which will effect the way the power comes on especially in pedals assist mode. We highly recommend this $20 option because it will allow you to customize in the future.

Their are many great programming guides available on the bbshd online. 


Pick your Bottom Bracket Size

The BBSHD comes in sizes made to fit the size of your bottom bracket. Please measure your bottom bracket before ordering. We have both in standard sizes (68-73mm), wide and fat sizes (74-100mm) and extra fat (100-120mm)

If in doubt about your sizing read this guide. If your bottom bracket shell is slightly longer than usual (for example 75mm) You can still use the standard motor. At worst you would just not use the second lockring which just acts as a jam nut and instead use blue Loctite. Same thing if your motor is a few mm above 100, you would NOT need the extra fat motor. You often can make a larger motor work with spacers but you do not need to go up a size if it is only a few millimeters difference.  

Luna provides an exclusive spacer kit

So that you can size your drive down in case it doesn't fit right away.  Need more spacers? We sell more here


Throttle options

If you are not sure about this one... pick the universal thumb throttle Thumb throttles are the safest and fit all bikes.

If you like motorcycle twist throttle, our custom Luna throttles are awesome.


Luna Install Tool option

There are some proprietary nuts on the bottom bracket of the BBSHD that can be a little tricky to install without the right tool (still very easy to jerry rig something)

However the Luna install wrench was made to make this task a snap and make taking on and off your drive easier in the future. 

This is a $20 option.  Luna manufactures  this kit in their shop, and makes it affordable...the bafang install kit would cost anywhere from $65-$150 depending on which dealer you bought it from. 


Additional links and useful info


33 Reviews

Daniel E Yoder Dec 11th 2018

Nice duty kit

Bought this kit to use on a khs alite 350 for a twelve mile commute. The kit went on the bike perfectly. I used three Milwaukee 9ah m18 (hooked up in series) batteries to power it. I was able to easily do the commute with some juice to spare.
Kit has lots of tork and is lots of fun to ride.
I now have 1000 miles on the kit. At 1000 miles the controller blew but think(am not sure) that it was user defect. I had run it in the snow with stock 46t chairing so am afraid that is what did it. However lunacycle was really nice to work with and warranted it. Kit works super after replacement. Thanks lunacycle! I just ordered 36t chainring to gear it down more for off road.

Chris Mar 13th 2018

Incredible Kit

I began ebiking with a 9c hub motor, external controller and HK liPo blocks. Now Im running the BBSHD hot-rod with a 13.5 Ah shark pack. The difference is night and day. No more rats nest of wires for the batteries, no more charging each individual battery for every ride, no more weekly wheel work! The motor is whisper quiet, powerful and sleek. Most people don't even know its an ebike unless they look closely. The cons of this kit? Shifting is hard unless you let off the throttle/pedals for a solid second or two (getting the shift sensor), The stock chainring is ugly and way to big for anything but road use, and I had to drill through the battery mount to fit it on the frame (watch the video on the shark page). Included ebrake handles wont work with my hydraulic brakes.
I'm getting 34 mph on flat with the throttle only with the Luna one 36t chainring, 11t rear on a 29" wheel. The c961 display is ok, nothing great. No Ah used option, just a graphical battery display, not sure if its accurate at 52v yet.
All in all, 5 stars. This is a fantastic alternative to over-priced showroom ebikes.

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