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Butch's EZM Recumbent


Discussion at Motorized Bicycle Engine Kit Forum in the Pictures and Videos forum. I just finished installing my EZM kit on a recumbent that I built over the winter. I had to wait ...
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Old 05-04-2009, 06:05 PM
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Location: Princeton, MN
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Default Butch's EZM Recumbent

I just finished installing my EZM kit on a recumbent that I built over the winter. I had to wait for the weather to warm up here in Minnesota so I could get it painted. I like to pedal along with the motor so I made a 72t. chain ring out of .125 aluminum. I went for my first ride today and other than a minor belt tension adjustment it ran great. Did not open it up all the way but cruised at 30 MPH at about 6800 RPM. It’s quite a bit quieter than the Grubee GB.
Attached Thumbnails
butchs-ezm-recumbent-ezm-bent1.jpg  butchs-ezm-recumbent-ezm-bent3.jpg  
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Old 05-05-2009, 12:36 AM
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Default Re: Butch's EZM Recumbent

Very cool! That looks awesome
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Old 05-05-2009, 12:38 PM
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Default Re: Butch's EZM Recumbent

I like your bike I have a recumbent in the works but haven't worked on it for a while. It a home made bike called the easy clone or something like that got the info off the net. I got lazy and need to make or buy some parts plus I find it hard to ride or I should say get used to now if I put an engine on it that would make it easier to ride.
Norman
Again you have a very nice looking bike bet it rides good.
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Old 05-06-2009, 04:48 PM
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Location: Dallas, Oregon
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Default Re: Butch's EZM Recumbent

I like your bike. It looks a lot like an AZ build to me. I built a similar bike for running around town but did not motorize it. I also have a LWB AZ TourMaster that I just finished and swapped my GEBE 35cc motor onto.

Here is a pic of my AZ 26/20 HighRoller.


Greg
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Old 06-03-2009, 07:29 AM
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Default Re: Butch's EZM Recumbent

Quote:
Originally Posted by Butch K View Post
I just finished installing my EZM kit on a recumbent that I built over the winter. I had to wait for the weather to warm up here in Minnesota so I could get it painted. I like to pedal along with the motor so I made a 72t. chain ring out of .125 aluminum. I went for my first ride today and other than a minor belt tension adjustment it ran great. Did not open it up all the way but cruised at 30 MPH at about 6500 RPM. It’s quite a bit quieter than the Grubee GB.
Here are a few more pics of my EZM Recumbent. I added a suppport bracket for the tranny and also a chain tensioner. I also added a sprocket and adapter from Manic Mechanic. It installed fairly easy but because of my small hub diameter (3/4") and larger 12 gauge spokes it was a tight squeeze through the spokes. Chain tension is nice and even all the way around. I also painted the motor cover black.
I experimented a bit with the original and a larger primary drive sprocket. I got the following RPM results for anyone interested.
With the 9t. sprocket:
25 MPH @5500 RPM
30 MPH @6500 RPM
35 MPH @7600 RPM
Didn't want to over rev the engine so I quit at 35 MPH.
With the 11t. sprocket:
25 MPH @ 4500 RPM
30 MPH @5500 RPM
35 MPH @6500 RPM
40 MPH @7300 RPM
Attached Thumbnails
butchs-ezm-recumbent-high-roller4a.jpg  butchs-ezm-recumbent-high-roller4c.jpg  butchs-ezm-recumbent-high-roller4b.jpg  

Last edited by Butch K : 06-03-2009 at 11:18 AM.
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Old 06-03-2009, 01:22 PM
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Default Re: Butch's EZM Recumbent

That sure does look like a comfortable, fast ride.
oh yea, be careful riding on decks, bad things can happen ;-)
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Old 07-17-2009, 07:10 PM
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Default Re: Butch's EZM Recumbent

How did you make the steering wheel
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