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Cruzbike MWB QuasiLow MBB First Ride (Read 11497 times)
evblazer
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Cruzbike MWB QuasiLow MBB First Ride
Feb 28th, 2010, 8:28pm
 
Finally got a ride in for the month of February. It was a whole 100 yards but it went pretty well. Even better the bike didn't fall to pieces or show any sign of cracking at any of the welds not just for the short ride but for a lot of hopping up and down in the seat testing it out.
For riding I just went down the driveway and turned around and rode back and forth a couple times but I didn't have any problems pedaling or going straight at all.

 
I am going to ride it a bit with the current setup except I will change out the trigger shifters for some thumb shifters.

 

 
The seat will drop a bit more using the bacchetta set struts and it will go up a bit too.
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« Last Edit: Feb 28th, 2010, 10:30pm by evblazer »  

Mark Hastings
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Re: Cruzbike MWB QuasiLow MBB First Ride
Reply #1 - Mar 1st, 2010, 7:18am
 
Mark, that looks awesome!  I don't think it's too long either.  Does it feel long?  Looks to be a great ride.  What kind of handle bars are you using?
 
I started mine this weekend, but only to the point of taking apart the donor, and setting up a 20' wheel with a 7 speed freewheel, and sizing it to the framing...also did some more research and found som more MBB FWD, and FWD stuff associated with the Zockra people...have to find the link again...
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« Last Edit: Mar 1st, 2010, 7:19am by JimFPU »  

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Re: Cruzbike MWB QuasiLow MBB First Ride
Reply #2 - Mar 1st, 2010, 9:47am
 
WTB Mountain Drop Bars (Gary Origin 8's seem to be out of circulation)

 
It is definately long for my stable. I'm going to check today but it might be longer then my touring upright with the xtracycle attachment on it. I think the weight might be too much over the front but I'm not sure if cutting say 6" off the wheel base would make that much of a difference especially if I'm going to stick the xtracycle attachment to the back of it eventually.
For now I'm looking at riding it as it and figuring out if I'm going with a hub motor or other method of support propulsion.
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« Last Edit: Mar 1st, 2010, 9:52am by evblazer »  

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Re: Cruzbike MWB QuasiLow MBB First Ride
Reply #3 - Mar 1st, 2010, 10:42am
 
Thanks for the bar info.
 
That's what my plan is.  I have a GEBE that I plan to add to the back of mine, and the extra space in front of the rear tire is where I plan to mount it.  I like your design.  I have an Infinity LWB USS, that drives like a Caddy, so I kind of expect a similar ride with this one.  I'm hoping to have full suspension though....still working those details...
 
What head tube angle did you use?  I've been reading a lot about that lately, and saw on the Zockra site or BROL with papa Reku,  that too steep gets too squirley, and too shallow gets to much wheel flop (or which ever way...) any way do you know about what you used?  Looks around 65 degrees?  Does the steering feel heavey at any point?
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« Last Edit: Mar 1st, 2010, 11:14am by JimFPU »  

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Re: Cruzbike MWB QuasiLow MBB First Ride
Reply #4 - Mar 1st, 2010, 11:40am
 
It was supposed to be around 65 I think it ended up being about 63.
The front takes some getting used to but it is only heavy when I try to lean it against something or walk somewhere and forget what bike I'm walking. When leaning it the front need to be against something or the front end swings about. Also since it is a swingboom I have to walk it with both hands on the front handlebars to keep it steady. On the hurricane I keep one hand on the tiller and one on the headrest to walk it around much like my road bike with one hand on the handlebars and one on the saddle.
 
Riding isn't bad and now neither is starting. Previously when the seat was so high it was hard to get my legs up onto the pedals and not feel really tipsy on the bike with just one foot down. Now it is really easy to do and to start off. I haven't taken it on any long rides though but on the old frame I hated corners and stops. Not sure I'll be diving into corners like I do on my hurricane any time soon but hopefully I'll take them a little less reluctantly.
 
I'm going in the slightly stealthier motor back to where evblazer name started but smaller than the 180lb motor my first electric vehicle had.
Someone elses but I plan on doing the same but a little lighter. Only a few seconds to add/remove and it's a normal bike.

1.5kg for motor/controller/mount/drive and then however much battery I need. Maybe just a lb or two to help me up some steep hills.
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« Last Edit: Mar 1st, 2010, 4:17pm by evblazer »  

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Re: Cruzbike MWB QuasiLow MBB First Ride
Reply #5 - Mar 2nd, 2010, 6:52am
 
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Re: Cruzbike MWB QuasiLow MBB First Ride
Reply #6 - Mar 2nd, 2010, 8:33am
 
That albatross is really nice I like the shorter wheel base of it and lack of extra material to the rear. I'm really torn right now between trying to build something like that or trying a python http://www.python-lowracer.de/ . The python seems like such a neat idea and the only way to try one is to build it but they say it is more of a touring bike and not having somewhere to put my hands that had some input on handling would kinda freak me out. Even just plain USS was too drastic a change for me.
Just went out and measured my wheelbase at 58" which is 16" longer then my hurricane. Give me room for a battery or two under the seat though and maybe a nice big tailcone  Grin
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« Last Edit: Mar 2nd, 2010, 9:06am by evblazer »  

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Re: Cruzbike MWB QuasiLow MBB First Ride
Reply #7 - Mar 2nd, 2010, 9:02am
 
I'm not sure I'm up for a Python either.  I've read a lot about them, and I hear it's Cruzbike like...love it or hate it.  I do like the USS on my Infinity.  Not sure if it's the 'cool' factor or it really is more comfortable...either way I like it on that bike.  I'll have to figure on OSS on the lowracer; although I have seen USS on a Marauder (http://www.pinkbikesite.com/tag/recumbent/).
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aikigreg
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Re: Cruzbike MWB QuasiLow MBB First Ride
Reply #8 - Mar 2nd, 2010, 9:47am
 
58" isn't so bad - my tica lowracer was 55.  I really like your design - how plush is the ride?
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Re: Cruzbike MWB QuasiLow MBB First Ride
Reply #9 - Mar 2nd, 2010, 8:04pm
 
Added a gusset and loosened the pre-load on the rear since more of the weight is up front.

 
I also dropped the recline one notch. Not too much of a change but I definately need to upgrade to a challenge xlarge seat with a headrest for longer rides.

 
I only went around the parking lot of the school a few times then hopped off a curb at ~5mph and then around the block and back home. I didn't feel anything but when I heard the pothole I ran over I cringed. Between the  potholes and the curb no damage done. I'm going to have to go a bit further and hit some cobblestone and really bad roads to determine if it is as smooth as the hurricane. I took some turns at a pretty good pace pedaling with a bit of lean and it felt good. The front end felt a little heavy but I don't know if that is more the fact that it is heavy or the pivot angle on the headtube.
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« Last Edit: Mar 2nd, 2010, 8:58pm by evblazer »  

Mark Hastings
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Re: Cruzbike MWB QuasiLow MBB First Ride
Reply #10 - Mar 3rd, 2010, 6:58am
 
Looking good Mark!   Smiley
 
I actually started hacking mine last night.  I completed the fork surgery (went from 26' to 20'), reused some square tube off another failed design, and got it mostly laid out.  I still have to decide seat height, and head tube angle, but at least I can 'see' where I'm headed.  No time to download pics...I'll get them later.
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Re: Cruzbike MWB QuasiLow MBB First Ride
Reply #11 - Mar 3rd, 2010, 9:09pm
 
What size wheels are those?
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Re: Cruzbike MWB QuasiLow MBB First Ride
Reply #12 - Mar 3rd, 2010, 10:33pm
 
The wheels are 559s. I think tomorrow night I am going to take it apart and paint the frame to match the rear triangle. Until I get another seat I'm done with changes and it may be a while till I get a good seat for it.
 
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Re: Cruzbike MWB QuasiLow MBB First Ride
Reply #13 - Mar 4th, 2010, 6:59am
 
******WARNING!!!!******If the sight of a bicycle and a grinder in the same room offends you don't look any further!!
 
 
 
 
 
Fork surgery:  
Rear stays already cut off:  

 
Cutting the forks:  

 
Widening the forks to accept the rear wheel sze:
 
 
test fit:  

 
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« Last Edit: Mar 4th, 2010, 7:01am by JimFPU »  

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JimFPU
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Re: Cruzbike MWB QuasiLow MBB First Ride
Reply #14 - Mar 4th, 2010, 7:01am
 
Surgey mostly complete, chanistays not yet welded, as BB not yet positioned:  

 
Generally how it should look, with inspiration photos all around...(man, I need to clean up!)  
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« Last Edit: Mar 4th, 2010, 7:02am by JimFPU »  

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