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post #1 of 22 (permalink) Old 10-06-2019 Thread Starter
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new to mini bikes

just bought my self a second hand 50cc quad bike and i was wondering where i would find an extended swing arm from
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post #2 of 22 (permalink) Old 10-06-2019
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Re: new to mini bikes

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Originally Posted by HDshiny View Post
just bought my self a second hand 50cc quad bike and i was wondering where i would find an extended swing arm from

You stretch the one you have with round tube and a welder then you lengthen the chain if its a 2 stroke miniquad.................

If its 4 stroke youre gonna have to improvise too......

Other than that theres no store you can buy one from off the shelf..

Pics of the quad help a lot.....

Good Luck and Welcome to the forum

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Last edited by CAM2; 10-06-2019 at 09:12 PM.
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post #3 of 22 (permalink) Old 4 Weeks Ago Thread Starter
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Re: new to mini bikes

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You stretch the one you have with round tube and a welder then you lengthen the chain if its a 2 stroke miniquad.................

If its 4 stroke youre gonna have to improvise too......

Other than that theres no store you can buy one from off the shelf..

Pics of the quad help a lot.....

Good Luck and Welcome to the forum
Not sure how I add photos. Thinking of adding about 2 or 4 inch in length to the rear just don't want to make the swing arm week and brake
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post #4 of 22 (permalink) Old 4 Weeks Ago
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Re: new to mini bikes

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Not sure how I add photos. Thinking of adding about 2 or 4 inch in length to the rear just don't want to make the swing arm week and brake
Try posting through post image.............https://postimages.org/

Put these quotes before and after pic link and it should appear

[IMG] [/IMG]

As far as the rear swingarm getting weak and break If you use high quality steel and bridge the inside with a smaller diameter innertubing before welding the tubes together to add extra strength it will work great and not bend unless it gets really-really torqued..

Or you can make one from scratch out of chro-mo tubing


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Last edited by CAM2; 4 Weeks Ago at 08:32 AM.
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post #5 of 22 (permalink) Old 4 Weeks Ago Thread Starter
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Re: new to mini bikes

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Originally Posted by CAM2 View Post
Try posting through post image.............https://postimages.org/

Put these quotes before and after pic link and it should appear

[IMG] [/IMG]

As far as the rear swingarm getting weak and break If you use high quality steel and bridge the inside with a smaller diameter innertubing before welding the tubes together to add extra strength it will work great and not bend unless it gets really-really torqued..

Or you can make one from scratch out of chro-mo tubing



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post #6 of 22 (permalink) Old 4 Weeks Ago
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Re: new to mini bikes

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Originally Posted by HDshiny View Post


You have a 47cc 2 stroke miniquad...

There's an old member named Benefield...He was into modding those big-time....Put his name into the search box here on the site...

I would simply extend what you have and use a piece of inner tubing that's the same outside diameter as the inside the whole length of the mod and make a piece the same length as the stretch...

It will be twice as strong as it was once welded together......

Good luck..

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post #7 of 22 (permalink) Old 4 Weeks Ago
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I went out and looked at mine it looks like it would be super easy to cut it and lengthen the swingarm
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post #8 of 22 (permalink) Old 4 Weeks Ago
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Re: new to mini bikes

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I went out and looked at mine it looks like it would be super easy to cut it and lengthen the swingarm




Yes indeed.....

If his rear swingarm looks anything like yours he should extend it where it pivots for best results and looks.......

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post #9 of 22 (permalink) Old 4 Weeks Ago Thread Starter
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Re: new to mini bikes

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Yes indeed.....

If his rear swingarm looks anything like yours he should extend it where it pivots for best results and looks.......
Looking at cutting the swing arm in the middle and adding about 4 inch either side. Anyone know what kind of metal it would be? Owner before hand has no details on the quad. Seen a video on YouTube of a buy using a hospital bed to extend his mini quad so seems doable
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post #10 of 22 (permalink) Old 4 Weeks Ago
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Re: new to mini bikes

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Originally Posted by HDshiny View Post
Looking at cutting the swing arm in the middle and adding about 4 inch either side. Anyone know what kind of metal it would be? Owner before hand has no details on the quad. Seen a video on YouTube of a buy using a hospital bed to extend his mini quad so seems doable
I use tubing from junked bicycles.........

As you can see on the left that the chrome tubing is slightly smaller diameter than the piece on the right and will tightly slide together to form the bridge between the cuts.....



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Last edited by CAM2; 4 Weeks Ago at 08:05 AM.
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post #11 of 22 (permalink) Old 4 Weeks Ago Thread Starter
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Re: new to mini bikes

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I use tubing from bicycles............
Scrap yard here I come then haha. Thanks for the help. But apologies in advance because I will ask lots of questions haha
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post #12 of 22 (permalink) Old 4 Weeks Ago
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Re: new to mini bikes

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Scrap yard here I come then haha. Thanks for the help. But apologies in advance because I will ask lots of questions haha
Its part of the learning process to ask questions so no apologies needed in advance,,,,LOL

Take care man and keep us posted...


This was the start to my homemade triple 49cc enginned dragbike...







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Last edited by CAM2; 4 Weeks Ago at 08:25 AM.
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post #13 of 22 (permalink) Old 4 Weeks Ago Thread Starter
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Re: new to mini bikes

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Its part of the learning process to ask questions so no apologies needed in advance,,,,LOL

Take care man and keep us posted...


This was the start to my homemade triple 49cc enginned dragbike...







Been looking further into extending the rear swing arm but I'm not 100% sure the frame of the quad is steel. Don't want to cut and try weld steel and it either not weld or break. Is there a way I can tell what meterial is being used for the frame?
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post #14 of 22 (permalink) Old 4 Weeks Ago
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Re: new to mini bikes

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Originally Posted by HDshiny View Post
Been looking further into extending the rear swing arm but I'm not 100% sure the frame of the quad is steel. Don't want to cut and try weld steel and it either not weld or break. Is there a way I can tell what meterial is being used for the frame?
You mean like sticking a magnet to it to see if it sticks...?

Im 100% sure that frame is 100% cheap-azz chinese grade steel that's like 1.6/1.7mm's thick with a glossy or textured powdercoat-like paint to make it appear beefier than it really is......






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Last edited by CAM2; 4 Weeks Ago at 09:18 PM.
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post #15 of 22 (permalink) Old 4 Weeks Ago
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the worst carbon steal you can come across and lead paint 🙂

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post #16 of 22 (permalink) Old 4 Weeks Ago Thread Starter
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Re: new to mini bikes

[QUOTE=CAM2;904665]You mean like sticking a magnet to it to see if it sticks...?

Im 100% sure that frame is 100% cheap-azz chinese grade steel that's like 1.6/1.7mm's thick with a glossy or textured powdercoat-like paint to make it appear beefier than it really is...……...

So far so good...
https://postimg.cc/F7zP02p1

Just need to get my 140cc engaine and get cutting again
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post #17 of 22 (permalink) Old 4 Weeks Ago
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Re: new to mini bikes

[quote=HDshiny;904753]
Quote:
Originally Posted by CAM2 View Post
You mean like sticking a magnet to it to see if it sticks...?

Im 100% sure that frame is 100% cheap-azz chinese grade steel that's like 1.6/1.7mm's thick with a glossy or textured powdercoat-like paint to make it appear beefier than it really is......

So far so good...
https://postimg.cc/F7zP02p1

Just need to get my 140cc engaine and get cutting again
Looks pretty good for a starter ............

140cc engine....OHV Briggs Type or Horizontal Honda Style?

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post #18 of 22 (permalink) Old 4 Weeks Ago Thread Starter
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Re: new to mini bikes

[quote=CAM2;904755]
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Looks pretty good for a starter ............

140cc engine....OHV Briggs Type or Horizontal Honda Style?
140cc demon x engine
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post #19 of 22 (permalink) Old 4 Weeks Ago
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lol the mini quad wont handle mutch more then what it has mine at full speed shakes so bad lol
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post #20 of 22 (permalink) Old 4 Weeks Ago
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Re: new to mini bikes

[quote=HDshiny;904771]
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Originally Posted by CAM2 View Post

140cc demon x engine
So its a Horizintal Honda style like a CRF....

Without stretching the frame aswell its gonna be a big no-go on that plan.....

Besides youre gonna need to beef up the suspension a lil with a longer shock set back 4" more and a better type front suspension...

Good Luck

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