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Luna Gravity Bullseye Pro Monster Fat Ebike

Calculated at checkout

Product Description

Full Suspension Mountain Bike  (see specs)
Powerful BBSHD Mid Drive (BBSHD)
Full Color Dashboard DPC-14
52v Shark Panasonic Battery 13.5ah 700 watt hours
21 piece Luna Ebike Tool Kit
Luna Mighty Mini Chainring
Luna Mini Advanced Charger
Programming Cable
Professional assembly
Please note this bike is programmed for 750 watts for street use.


Please note this bike is shipped factory programmed for 750 watts for street use.  Although each drive is shipped with a programming cable for adjusting pedal cadence levels, we do not approve hacking the program settings to un-limit ebikes ridden on public roads.  However those that want to re-program for off-road private property use can find many guides on the internet.

General Description

This is one of  the most popular fat bike builds and has been made famous in our fathers day video.

This bike features the highest quality front suspension fork available for a fat bike, the RockShox Bluto which buy itself retails for $600.  (read review on the bluto)

Although we specialize in build your own kits, Luna can build your bike for you at a fraction of the price a store bought bike would cost you for this amazing performance.

In off-road mode this bike easily will climb any hill any human could peddle up and even steeper.

The benefit of a hardtail (front suspension only) ebike like this is you have the option later of putting a 20ah triangle battery pack inside the triangle which you could never do with a full suspension ebike.


Why buy from Luna a New Ebike Company You Haven’t Heard Of?

Read our recent Ebike Mission Statement
Google Luna Cycle Ebike
Read this warning about buying ebikes (do not get punked)
Read this recent Ebike School Article about Luna Cycle.

How We Beat Most of the Competition




Fairly priced
We are Ebike fanatics and experts
State of the art mid drive motor
Panasonic GA Battery - cutting edge tech
Tell you the watt hours 700
Based on Brand name bicycles (KHS)
Quality bicycle components
Full color display Luna Designed Interface
Programmable interface allows you to really dial in the power.



Ebike profiteers
Heavy hub rear motor (cheap to buy)
Crappier cells, bad pack construction
Exaggerate range numbers
Cheap chinese imported bike
Sketchy components
Really cheesey dash board if any at all
Not advanced enough to have any programming


Compare these Dream Features


Research these incredible features in this bike and you will not find  a better quality ebike at a better value.
Name brand top-shelf bike Gravity
Powerful Mid drive
Panasonic GA 52v Battery with 700 watt hours
Full featured Color Display
Pedal assist and throttle features
Fully programmable through an interface.
Tons of small details that make Luna the Best.



Panasonic 52v GA 13.5ah Battery


The battery is the most vital of any ebike.  We use the best 18650 cells available (the Panasonic GA) which offer both amazing energy density and high performance.  (read a review on this ebike pack)  We make our packs with quality BMS, cases etc...cutting edge technology.  You can have confidence that when this bike is outfitted with a Luna Cycle battery you are getting the ultimate in reliable, safe, performance at an affordable price.  Our competitors sale a 48v of this pack for over $1000!  Look here for more Info on this pack.

Research ebike battery packs and you will see the Panasonic GA Shark is the best battery available today.

We use a quick change pack which allows you to extend your range by quickly swapping the pack. You can swap packs in about a minute.


Mounted Inside the Triangle - Perfect

Also this ebike has the battery mounted inside  the frame in the triangle where it belongs for the ultimate in balance and good looks. The battery in the triangle is the best solution for any ebike.  We don’t do the easy thing like other ebike companies and weld the battery case to a rear rack which is the worst place for the battery making your bike back heavy. (especially with a rear hub motor)

Also out packs are quick release for the ultimate in convenience. Double your range by buying a 2nd battery at a discount when you buy this bike.

Top of the Line Mid Drive Motor Set Up

mid drive.jpg

Luna is  offering this ebike in a BBSHD format....these drives are the most reliable and powerful drive systems  available on the market your  own research to back that up.  And much more expensive for us to buy than a cheap hub motor.  But we are selling them for less money than cheap hub motor bikes typically sell for.

These mid drives are completely silent, efficient, and fun to ride. They have quality color display and both throttle and pedal assist.

Luna Cycles offers no hub motor bikes....but only mid drive bikes because we believe in offering only the cutting edge.  

You will not find this quality with any production bike at this price point anywhere.

Or you can save even more money by converting your own bike and buying one of our kits here. (read about the advantage of mid drive here)

Luna Cycles realizes that not everyone is into building and is offering a turn key Fat Bike with a BBSHD drive (read about our most popular drive here). This is still another price break through for a quality bike with quality components.  We want to make awesome ebikes affordable for everyone.

Although we specialize in build your own kits, Luna can build your bike for you at a fraction of the price a store bought bike would cost you for this amazing performance.

Color Display / Control Center

color display.jpg

Like all the Luna BIkes  this bike comes with the DPC-14 a  full color display which gives you valuable insight such as battery life, speed, and miles travelled.  It automatically changes to dark mode when the sun goes down so you ride in “stealth” mode.  There are very few production  bikes under $5,000 with this quality of display.

21 Piece Luna Toolkit



Because we feel every rider should have the capacity to wrench, we are including a free luna kit which is all tools we either made or hand selected to be perfect companion to one of our mid drive bikes.

This will help you because our high performance mid drive bikes will need  occasional adjustments, This kit along with our video guides will give you the tools you need.


Quality Mechanical Disc Brakes

At Luna Cycle we believe stopping fast is as important as going fast, and this bike uses Avid BB5 Mechanical Disc Brakes. These Avid Brakes are reliable and convenient.

The large rotors help prevent your brakes from overheating on long mountain descents. With a larger (180mm) Front disc than the Rear (160mm) provides greater stopping power.



Electric Blue


Gloss Black

Frame Sizing

Please don't stress about about frame size the way you do when you buy a pedal bike….it’s not as important.

With electric bikes it is not important to get the right frame sizing, since you are not reliant on efficient human power for propulsion, you won’t notice much of a difference since the motor is doing the lion's share of the work.. We actually recommend going with  a smaller size with an ebike than you would get for a pedal bike, because smaller sizes are better for keeping the weight and center of balance low, and are easier to get on and off of (since ebikes are heavier they are more awkward to tilt to swing your leg over)... You can always raise your seat or raise your handlebars….but keep the center of balance low and get a smaller sized bike if you can.

Note that many of our  full suspension bikes only come in large and xlarge...this is because it is the only sizes that fit our battery packs.

Included With This Ebike (with links to each item for more info):


Gravity Bulls Eye Pro with Bluto Fork (see complete list of specs here)
Powerful mid drive (BBSHD)
DPC-14 full color Dashboard
52v Panasonic Battery 13.5ah 700 watt hours ($520 retail)
Luna Mighty Mini Chainring
Luna Mini Advanced Charger
Programming cable

Please allow One week for  shipping since each bike is built to order.

Please note this bike is programmed for 750 watts for street use.

Optional upgrades:


Warranty Options


We are an ecommerce company and ship this bike to you wherever you are at. We charge minimal markup because we do not offer face to face support.  Most of our sales are to enthusiasts and to builders who know what they want and don’t need a lot of assistance from their dealer. You can use our forums and knowledgebase to find the answer to almost any support question you have.

If you expect your bicycle to be flawless and never need adjustment or maintenance, we recommend that you buy your ebike from a local brick and mortar ebike store if you have one near you, especially if you want person to person support when it comes to adjustments and maintenance of your ebike.  We do not offer this level of support.

Bikes are large and expensive to ship, and once you ride it it is used, and we do not offer any returns on your bike unless it is dead on arrival.

For 30  days after you get the bike we will replace any parts that are defective.

These are just bicycles and are easy to maintain and to work on…. And we really encourage you to learn basic bicycle maintenance or get a relationship with a local bike shop.

The Drive system and battery we will cover for 90 days for part replacement.  

Extended warranties are available for 6 months and 1 year and 2 year  for an added cost. Warranty covers any parts that are defective we will send to you with instructions how to install.

Since our drive systems are modular every repair is easy with the right part in hand.

That being said this a high quality bike with a high quality component system and should be as solid as any ebike. However you will be required to do routine adjustments and maintenance on your own.

Product Reviews

Write Review

  1. Amazing Ebike! Thank you Luna Cycles!!!

    Posted by Brad on Jan 14th 2017

    I've ridden my Luna Gravity Bullseye Pro Monster Fat Ebike for just over 200 miles and I am thrilled! It really does do 30 mph on flat terrain, 20 mph thru rough terrain and I haven't found a hill that this bike doesn't have the power to climb! I've ridden thru 4 inches of snow like a boss and sunk it into 3-4 inches of mud and still powered thru. My only complaint would be this bike makes me smile too often, pretty much the whole time I'm riding which lead to eating a lot of dirt until I got fenders. I love the work you are doing and Thank You to everyone at Luna Cycles!