Home Cycling How To Set up Motor On A Mountain Bike In 8 Easy Steps

How To Set up Motor On A Mountain Bike In 8 Easy Steps

How To Set up Motor On A Mountain Bike In 8 Easy Steps


Mountain bikes are fascinating machines, aren’t they? You may journey them on the roughest terrains and benefit from the thrill. However being a mountain biker, I’ve at all times had the itch to take issues to the subsequent degree. How did I do this? Nice query! I put in a motor. And I like the additional energy I get from the torque.

It even provides you the additional kick you would possibly have to climb steep hills! Wait! There’s much more. Putting in the motor doesn’t change your bike’s dealing with capabilities. Isn’t that cool?

Now that I’ve received your consideration, Do you wish to discover ways to connect a motor to your mountain bike? Let’s get began!

How To Put Motor In A Mountain Bike In 8 Steps!

You’ll have to observe some steps however first! You’ll want some instruments.

Step 1: The Needed Preparation 

Bike Repair Tool Kit
Bike Restore Instrument Equipment


For any type of course of associated to bikes, whether or not it’s upkeep/repairs or putting in a motor, you will have some crucial instruments. Listed here are the mandatory instruments that it is best to have at your disposal.

  • Hex Keys and Allen Wrenches (Make Positive That You Have Totally different Sizes Of These Instruments)
  • Pliers (Common and Needle-Nostril Are Beneficial)
  • Screwdriver (Philips and Flathead Are Beneficial)
  • Bike Conversion Equipment
  • An Adjustable Wrench
  • Socket Set
  • A Chain Instrument
  • Tire Levers
  • Wire Cutters AKA Strippers
  • Multimeter (Elective): Use This To Check The Electrical Connection
  • A Bike Restore Stand (Elective)
  • Thread Locker
  • Thread Locker Fluid
  • Sprocket
  • Drive Chain
  • Drill
  • Torque Wrench
  • Protecting Clothes ( Gears, Masks, Gloves)

Set Up Your Workspace

Okay, so you’ll want a quiet place to work the place you received’t be disturbed. No matter place works for you want your storage, driveway, or wherever else. Simply hold the youngsters away!

Use A Bike Restore Stand Or Not

Must you use a motorbike restore stand for this complete operation? Actually, it’s your personal alternative. The stand will provide help to hold your bike in a single place as you put in the motor. 

Associated: How To Select The Proper Bike Work Stand For Your Bike Restore Wants

Put together Your Mountain Bike 

Like I mentioned, having the bike in a vertical place is important. Any elevated platform will do the trick. One other essential step right here is to spare a entrance caliper tire. This might be essential to cease the mountain bike when wanted.

Throughout this sort of operation, there’s a larger danger of getting a punctured tire enhance. To keep away from that, disconnect the inside tubes out of your setup and use a tubeless setup. Or you may simply go together with puncture-resistant tires. No matter works for you!

Repair Mountain Bike

Step 2: Choose The Motor First

You can’t begin the method with out having the suitable motor first, are you able to? 

A few of my most popular selections are Brose Drive S-Magazine: 90Nm/567W and Shimano EP8: 85Nm. Your desire will be totally different. However whereas deciding on a motor, think about the next

  • How a lot torque do you want?
  • What sort of terrain will you journey on?
  • Do you want a gasoline or an electrical energy motor?

A gas-powered mountain bike might be highly effective however gasoline is pricey. However, electric-powered mountain bikes are highly effective, cost-effective, they usually additionally assist defend the surroundings.

Step 3: Examine Motor and Battery Compatibility 

All the time crosscheck between the motor that you’ve got chosen and your bike. If in case you have chosen the battery as per the compatibility then it ought to work with none issues. Listed here are some issues that it is best to think about, simply in case!

Installing Battery On Electric Bike
Putting in Battery On Electrical Bike


Step What You Want To Do  Particulars
1 Motor Choice Select a motor that matches completely in your mountain bike body. Contemplate minimal drilling necessities.
2 Body Adjustment If the chosen motor doesn’t match, make crucial changes to the bike body. Set up a brand new bracket on the highest and backside tubes or use a strap system for downhill biking. Guarantee a comfortable and cozy match.
3 Sprocket Set up Set up rear sprockets to help the brand new engine. Connect the rear sprocket fastidiously to the primary powerhouse of the engine, offering the mandatory energy to the wheel. Take note of each entrance and rear sprockets.

When you’re trying to improve your biking expertise, try our information on motorized bicycles.

Step 4: Now Set up The Drive Chain 

The drive chain transfers the torque from the motor to the rear wheels of the bike. Because the bicycle wheel is crucial, it’s worthwhile to be sure that every thing is finished precisely prefer it must be. We have to defend the drivetrain from any injury. For that, let’s add thread lockers on the loosened bolts. The loosened bolts can injury the drive chain as you journey. Add some thread locker fluid to your bolts and that received’t be occurring. 

Keep in mind, you must set up the drive chain in a straight line. This can guarantee correct torque transition and in addition defend the drive chain from the motor’s stress. As soon as you’re achieved, put your bike on the bottom and see if any chains or wires drop out. When you see any, simply tighten them into their place. 

Is your bike’s entrance derailleur not shifting correctly? Try our step-by-step information on the way to modify your bike’s entrance derailleur and get again to easy shifting.

Step 5: Set up The Motor 

And now lastly, It’s time to set up the motor. Begin by disconnecting the unique wheel, and have your motor on the prepared. Connect the brand new motor with the wheel and fix it to the bike. You’ll want an additional set of arms for this step. 

Right here, your brakes would possibly loosen once you take the wheel off. You should utilize calipers to align and tighten the mechanical brakes. Within the case of hydraulic brakes, additionally, you will must pump the brake lever. 

Having issues placing the wheel again on? Right here’s what it’s worthwhile to do:

  • Unhook any type of attachments to the wheel, this additionally consists of the chain
  • Maintain the body, that is very crucial for the again wheel. It is a two-person job. Now, pull the derailleur backward. You’ll hear a click on that can sign the unlocking of the rear wheel.
  • Take away the brake pads. You should utilize pliers for that.
  • Now take away the wheel. You may match the battery on any wheel. Additionally, you will must open the cantilever brake, typically the rim can be sufficient.
  • Function the quick-release lever. This can open up the wheel correctly.
  • When you find yourself achieved, place the bike on the ground. The bike seat ought to contact the bottom. 

Word: When becoming the brand new tire, make sure you shut any levers that you just may need opened. Failure to take action might result in a giant fallout.

Are electrical mountain bikes definitely worth the funding? Learn our article on if electrical bikes must be unlawful and the way they’ll profit you.

Step 6: Set up The Battery

You’ll need to plug the battery into the connectors that you’ve got already connected to the wheels, sounds simple proper?

The velocity gauge connector might be linked to the battery for all of this to work out. They’ll connect with the throttle, and ensure to have the pliers on the prepared. 

Having bother shifting gears in your bike? Try our information on why your bike received’t shift gears and the way to repair it.

Defending The Battery 

Having a battery field will defend the battery from rain and common put on and tear. You’ll need a drilling machine to connect the field. I’d advocate going for a small and light-weight field that doesn’t enhance the load of the bike. The field might be positioned the place you place your water bottle.

Step 7: Time To Re-Assemble The Bike

Ensure that the spark plug, bicycle engine, and bicycle chain are all in place. Reattach the wheels. Go together with the rear wheel first, since you will have connected the motor and battery to it. 

Your bike handlebar and stem may additionally want some changes. In order for you a extra aggressive using place, modify the handlebar and stem accordingly. Doing so provides you with extra management and make your mountain bike much more balanced than earlier than.

Nonetheless confused? Properly, learn our information on the way to set up bike tires to be taught the ideas and methods.

Step 8: Check Drive!

Right here’s the place the true enjoyable begins. Now deliver down your bicycle and ensure every thing is in place. Watch out the primary time round. Go sluggish. Examine how far your bike goes the primary time round after which take it from there. 

Interact the motor, that is crucial to construct up the torque. Now press the clutch to attach with the motor. Try to be good to go now!

Electric Mountain Bike
Electrical Mountain Bike

8 Issues To Contemplate Earlier than Putting in A Motor

Properly, there are some issues that it’s worthwhile to think about prior to installing a motor in your bike.

1. The Motor Energy and Price 

It’s worthwhile to think about the motor energy and the general value. I’d advocate getting a robust motor. Don’t go beneath a motor that has 750 watts of energy. Highly effective batteries ship an environment friendly journey and are sturdy. You even have to think about the general value. Plan your funds accordingly. If you’re going for a robust and environment friendly motor, I recommend that you’ve got at the least $1000 to spare. It’s worthwhile to think about the price of the motor, the charging package, the battery, and different elements. It’s good to even have a plan for the upkeep and substitute of components.

On the lookout for a mountain bike that’s simple to retailer and transport? Try our checklist of the greatest folding mountain bikes in the marketplace.

2. Motor Compatibility 

You might have discovered the right mountain bike and the right motor/battery, however what if they don’t seem to be even appropriate with one another? How will you make that work out?

That’s why I like to recommend that you just be sure that the bike and motor are compatible. You may at all times seek the advice of an expert for assist.

Electric Bike Motor
Electrical Bike Motor

3. A Highly effective Braking System 

A motorized mountain bike will want highly effective brakes to deliver a balanced expertise. It’s worthwhile to go together with electrical bike-specific brakes which are highly effective sufficient to deliver your bike to a halt in a heartbeat. One other advantage of highly effective brakes is that they’ll maintain your bike and never make it disintegrate each time you deliver the bike to a halt.

Is your electrical bike not working? Try our information on the way to troubleshoot a lifeless electrical bike and repair widespread points.

4. Examine Your Native Legal guidelines and Laws 

Earlier than putting in a motor in your mountain bike, make certain to verify along with your native authorities to see if that is even permitted. Though you’ll hardly ever come throughout any laws, I nonetheless advise you to verify with them anyway. Class 2 Electrical Bikes are at all times permitted. Issues get a bit difficult with Class 3 Electrical Bikes however there are nonetheless workarounds for that.

5. The Battery Life and Vary 

The motor and battery go hand-in-hand, you received’t have the ability to use a motorized mountain bike with out the battery. So, prior to installing the battery, think about its life and vary. The battery ought to offer you a spread of 55+ miles on a full cost. The battery must also have the choice to be shortly charged. So do think about getting a quick charger. 

In my expertise, lithium-ion batteries are greatest for motor-assisted bikes. You is perhaps tempted to check out an even bigger battery to your mountain bike, they’re very highly effective but additionally heavy. Having them put in will solely prohibit you from longer journey.

Curious in regards to the advantages of electrical bikes? Learn our article on how they’ll enhance your well being, prevent cash, and scale back your carbon footprint.

6. The Weight Distribution

Since you’ll be including a motor to your bike, the load distribution will now be modified. This would possibly have an effect on the efficiency of the bike. 

The most effective strategy over right here is to be sure that the load of the motor that you’ve got put in is evenly distributed. If one space of the bike is burdened greater than regular then that can create issues for you. 

7. Selecting A Rugged Wheelset

One other facet that’s ignored by lots of people, it’s worthwhile to spend money on a rugged and sturdy wheelset. Take note of your hubs, tires, and spokes. A motor-assisted mountain bike places loads of stress on a wheelset. For this reason you want the very best wheelset!

8. The Want For Common Upkeep

Identical to any type of electrical bike or common bike, you will have upkeep. All the time be sure that your bike is maintained and dealing correctly earlier than each journey. Have the instruments prepared, and don’t overlook to lubricate the chain!

Associated: Three Primary Bike Upkeep Ideas You Can Do Your self

The Execs And Cons Of Placing A Motor On Your Mountain Bike

Side Execs Cons
Comfort Using turns into extra handy, with elevated velocity and climbing functionality. Train turns into extra environment friendly. Price of putting in a motor, potential upkeep bills, and substitute half prices.
Lifespan The bike’s lifespan is elevated as motor help reduces put on and tear on elements. Elevated weight because of the motor, probably affecting the bike’s agility and responsiveness.
Adventures Permits for longer adventures with out getting drained, because of the help of the motor and a strong battery. Lowered type of train, as the hassle required, is considerably decreased.

Construct A Motorized Bike At House 

Since now you can set up a motor on a mountain bike, you would possibly wish to strive your expertise on different bikes as effectively. Watch this enjoyable video on how one can construct an incredible motorized bike at dwelling.


Can I Put A Motor On My Mountain Bike?

It’s attainable to put in any type of motor in your mountain bike, you could possibly go together with a gas-powered or an electric-powered motor.

How Quick Is A 100cc Motor?

These motors are very quick, the typical velocity of 100cc motors ranges from 55 to 75 mph. There are additionally some distinctive motors which have damaged the report at 116mph.

Which Bike Motor Is Greatest In The Lengthy-Run?

You may select between a gas-powered or an electric-powered motor. Though electrical motors are largely most popular in the long term due to their advantages and affordability.


Congratulations! You might have achieved it! Only one essential factor I’ll point out right here is that it’s higher to have two units of arms moderately than one whereas putting in a motor in your mountain bike. You’ll want some further assist.  Hopefully, going by way of this information has given you sufficient information to go together with the method. Do you will have any questions? Please let me know within the feedback beneath!

Additionally Learn


This text was crafted by Luke Ameen, Affiliate Editor, a seasoned knowledgeable, bringing 8 years of expertise and information about all kinds of bikes. Our aim is to offer you correct, dependable, and priceless insights that will help you make knowledgeable choices and improve your biking expertise.

Ought to you will have any questions or require additional clarification on the subject, please be at liberty to attach with our knowledgeable writer Luke Ameen by leaving a remark beneath. We worth your engagement and are right here to help you.



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