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I am looking for someone to tell me how to attach a weedwacker moter to a bike and what moter I should use Answered

how fast it'll go if anyone knows where I can get someone else to do it if I need a lisence to ride it in the bike lane and what moter I should use (I want to go fast) and how exactly to do so????



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TheNecromancer13

Best Answer 3 years ago

If you want to make a GOOD motorized bicycle (45 mph 170 mpg good, that won't ruin your tires, break your bike, make a ton of noise, or pollute the air), I'm currently making a series of instructables detailing the process of making one of these babies... (a couple of my builds are pictured below)

Now, on to answering your original question, if you want to go with the weedwhacker motor, I'd suggest a friction drive to the rear wheel, although expect to go through tires pretty quickly. It would probably have a top speed of around 20 mph. Whether you need a license depends on where you live, how strict the cops in your area are, and how much of a jackass you are when riding it (you will get pulled over if you ride like a jackass). (I live in oregon, where the cutoff point is 34ccs and 20mph, and I ride around on 79cc bicycles, some of which go upwards of 45mph)

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brainsandboltsrickharris

Answer 3 years ago

actully a searched many times and found all of these but they are to complecated for me! (I am not very smart and need a simple way of making one)

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rickharrisbrainsandbolts

Answer 3 years ago

I am not sure there is a "simple" way to fit a motor onto a bike that is at all safe.

The friction drive onto the rear or front wheel is a well use system in both amateur and commercial bikes like this, Solex have been doing it for years,.

https://www.google.co.uk/search?q=solex+moped&biw=...

I am sorry but I think you looking for the imporssible.

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Jack A Lopezrickharris

Answer 3 years ago

Usually I am wary of 'ibles with superlatives in the title. You know, anything that claims to be the biggest, fastest, greatest, most -est-est evar!

Although I have to admit, this 'ible, "How to make the cheapest motorbike ever", it might be the cheapest, and most simple, design I have seen.

I mean there is no transmission, apart from a little stubby cylinder-shaped drive wheel that rides directly on the back tire. Also there is no clutch, and no starter, or rather, you start the engine by pedalling.

I am guessing the lack of clutch means the engine will stall when the bike comes to a complete stop.

Anyway, I'm just impressed by how simple this is. Somehow I thought it would be more complicated.

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Downunder35m

3 years ago

1. Don't!
2. Get a motorbike license first.
3. Did I mention don't already?

Check your local laws first as I am almost certain such a conversion would be illegal in your country (unless you are from india or such but then you would not have a problem getting the info from you neighbour).
If it on 2 wheels and petrol powered it is classified as a motor bike and has to comply to the standards as such.
If you are in one of the few countries where "mopeds" are still legal you are lost again as the power output of a wacker is far higher than what is allowed - plus your bike would not count as a moped.
Last but not least:
You want to go fast - fast into hospital I assume...
At just 40km/h it is already hard to stop a bike in a short distance, how exactly do want to do that when going fast?
Not a single component of a bike is designed for such stresses, which is why these mods are totally illegal in most modern countries.

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TheNecromancer13Downunder35m

Answer 3 years ago

First, that india comment was kind of racist, second, you are wrong on pretty much every point. If done properly, you can make a motorized bicycle capable of going 45 mph and still have plenty of braking power by combining good bicycle brakes with engine braking. Also, in my experience, as long as you don't run red lights, speed, or otherwise disregard the rules of the road, in most places the cops have much better things to do (and this is coming from a person with a 79cc, 4hp motor on their bike, far larger than a weedwhacker) than pull over people who are not causing trouble just cause their bike engine is a bit too big, although you know the cops in your area better than I. Also the power output of a weedwhacker is usually at most 1hp, which is pretty modest, and even some electric bikes would be able to compete with that.

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rickharrisTheNecromancer13

Answer 3 years ago

In the UK at any rate you would be required to put your home made vehicle through a stringent Single vehicle inspection test to confirm it meets all road requirements, Is safe and well constructed - the test isn't easy to get past.

In addition you have a real problem getting anyone to insure you home made bike. despite that evidently your unlikely to ever claim as you built the thing your self in the first place.

A moped - up to 50 cc is limited in law to no faster than 30 MPH, An electric bike limited to 15 MPH unless registered and tested as a full road going vehicle.

Believe me the Cops in the UK will stop you just to see what your riding, as a long time rider of a 3 wheeled recumbent I have a lot of experience at being stopped.

As for India anyone who is prepared to battle with their traffic is probably certifiable anyway!! (british humour)

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Jack A Lopez

3 years ago

Um, lets see... here is a lets make search for "motorized bicycle"

https://www.instructables.com/howto/motorized+bicyc...

Also I noticed the Wikipedia page titled "Motorized bicycle"

https://en.wikipedia.org/wiki/Motorized_bicycle

has a section with the words "legal status of ..." with a list of a few well known countries that, I guess, have laws about that sort of thing.

For a project like this, you should probably just move to a country that doesn't have laws. There'll be lot less paperwork that way.

;-)