Building a Trike Using a Pocket Bike wheel to Push

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2dawgs

New Member
Feb 15, 2010
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Gilbert, AZ
Bought a fixed gear trike conversion rear (cheap) and attached it to a low rider frame. The trike will have no pedals, just foot rests.

Can I install a pull start 2 stroke or am I restricted to a 4 stroke?

Thanks.
 
DuctTapedGoat

DuctTapedGoat

Active Member
Dec 20, 2010
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Nampa Idaho
Two MAJOR things.

First - without pedals, you're not a motorized bike, you're a motorcycle. Check local laws.

Second - using a push on a trike without pedals not only makes it no longer a motorized bike, but you have 4 wheels so now you're a motor vehicle. Again, check local laws.
 
2

2dawgs

New Member
Feb 15, 2010
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Gilbert, AZ
DucTapedGoat,

I am well aware of this distinction. I plan on using it off-road and on the ranch.

What I am trying to find out can I use either 2 stroke or 4 stroke for this application. The 2 stroke w/pull start would allow me to utilize the existing fix drive on the rear axle (if that is possible). If not I would use the pocket bike push trailer using a four stroke. So, the real question is can I use a a 2 stroke w/pull start on the fix drive sprocket on the rear axle?
 
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2dawgs

New Member
Feb 15, 2010
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Gilbert, AZ
DuctTapedGoat,

Trike or not; I am thinking a fixed drive sprocket will work to accomodate a 2 stroke engine w/pull start.

Thanks for the advice.
 
2

2dawgs

New Member
Feb 15, 2010
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Gilbert, AZ
Bandito,

A go-ped is an excellent alternative for a pusher.

However, I already have modified the pocket bike frame to accomodate a 4 stroke set up (if that's the way to go).

If I go the 2 stroke w/pull start route, the pusher would no longer be required.

My reason for posting this thread was to see if using a fixed gear drive on the trike rear would work with a 2 stroke w/pull start; from what I can gather that is the case.

However, since I already have a 4 stroke Greyhound laying around and have modified the pocket bike frame to use as a pusher; I am going to try this out first. If that doesn't workout, I will definitely use the 2 stroke w/pull start and mount it over rear axle and hook up the chain to the direct drive. Due to ground clearance issues and the fact that drive sprocket is fixed, I won't be using pedals.
 
4

42blue15

New Member
Sep 18, 2008
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St Louis metro, USA
2dawgs said:
Bought a fixed gear trike conversion rear (cheap) and attached it to a low rider frame. The trike will have no pedals, just foot rests.

Can I install a pull start 2 stroke or am I restricted to a 4 stroke?

Thanks.
Click to expand...
I don't understand why you wouldn't be able to use either? Why do you think you could only use a 4-stroke?

I think that motorcycles on BLM land need to have approved spark-arrestor mufflers (and you could put that on either, just weld it onto the end of whatever muffler there is already) but other than that I can't think of any other restrictions.
 
flybytaco

flybytaco

Metal Molding Madman
Oct 17, 2009
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seekonk MASS
what motor are we talking about a 66cc 2 stroke or a pocket bike 2 stroke?
without a gear reduction in the motor it would be really hard to turn a 26 inch wheel with a fixed sprocket. and i think a pusher offroad wouldnt work too well. a 66 cc with an internal reduction and a pullstart would work with a fixed sprocket
 
2

2dawgs

New Member
Feb 15, 2010
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Gilbert, AZ
Will be using Dax's GTR-50 chain drive version; and the rear wheels are 20".

The reason I was considering four stroke & pusher at all, was because of the alignment issues with the rear fixed sprocket.

Also, a standard 2 stroke would require a pedal assist to jump start. Since I have ground clearance and direct drive issues, pedals won't work.

As far as BLM requirements, not an issue either. I will be using the trike on private property and the ranch only.

Thanks all for your helpful comments and ideas.
 
2

2dawgs

New Member
Feb 15, 2010
209
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Gilbert, AZ
Dmb,

Thanks for requesting pics of the build.

Tried previously to download pics to this site without any success. I will try transferring them to PhotoBucket and downloading in the pixel sizing this site requires.

Keep in mind this is a raw mockup version right now. Once I complete the build of the finished trike, I will post pics as well.
 
B

bowljoman

New Member
Aug 7, 2010
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Wa
Pocket bike parts rock.



Make sure you throw in a nexus tricycle transmission while you are in there!

Mega power can be made with internal hub jackshafts.

 
B

bowljoman

New Member
Aug 7, 2010
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Wa
Saddletramp1200 said:
I was hoping to leave this alone. If you use the clutch to get you going with a 2 stroke, your clutch will be fried before you even get it rolling.
Click to expand...
Maybe if you dont know how to gear down!

I do not peddle, ever! With a nexus trike transmission in the drivetrain, I can climb any hill you can find and still hit 40 on a flat.

Clutch and clutch shoes are fine!

The trike tranny can take whatever you can dish out.
 
Saddletramp1200

Saddletramp1200

Custom MB Buiilder
May 7, 2008
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Houston, Texas
Man You are so right, I'm just a noobie at this. Any day I don't learn something has not been a good day:) Maybe if I try real hard I might know as much about these things as you do some day :) Great build, ride safe. (c)
 
2

2dawgs

New Member
Feb 15, 2010
209
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0
Gilbert, AZ
bowljoman,

Your pocketbike/nexus drive train rocks!

Thanks for the heads up about the Nexus Tricycle transmission; already have a jack shaft system that exists on the pocket bike frame (not shown in the pic), if I go the 4 stroke route (engine featured in the Pic).
 
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