May 4th, 2018, 01:38 PM | #1 |
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250 ninja trike
I cut up my ninja to make a trike.Single seater using the original front forks, the motor and the gas tank. It'll have a suicide clutch with the shifter.
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May 4th, 2018, 01:47 PM | #2 |
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May 4th, 2018, 01:49 PM | #3 |
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LMAO, dude your killing me
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May 4th, 2018, 01:57 PM | #4 |
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That is wild!
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May 4th, 2018, 02:01 PM | #5 |
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Still got work to do. I am hoping it drives as good as it looks.
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May 4th, 2018, 02:04 PM | #6 |
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Pretty cool!
BTW - do you have a diff? |
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May 4th, 2018, 02:13 PM | #7 |
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Name: steven
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Negative on the diff, solid axle that I'll cut in half and will be supported by 4 bearing hangers.
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May 4th, 2018, 02:35 PM | #8 |
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More pics
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May 4th, 2018, 02:36 PM | #9 |
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Going to redo the shifting rod. I don't like the way it looks and it flexes too much
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May 4th, 2018, 02:52 PM | #10 |
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nice!
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May 4th, 2018, 02:57 PM | #11 |
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Thanks
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May 5th, 2018, 08:36 AM | #12 |
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This is so cool . Sereously fun looking project.
I always like the mooneyes tanks for trikes. Stupid expensive though. https://www.mooneyesusa.com/500-Seri...nks-p/mp50.htm
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May 5th, 2018, 10:58 AM | #13 |
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May 5th, 2018, 11:24 AM | #14 |
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What material tubing did you use? Chromoly? Hi-ten 1020?
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May 5th, 2018, 11:53 AM | #15 |
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That's pretty freakin cool
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May 5th, 2018, 06:28 PM | #16 |
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Ninja trike update. Got the chain tensioner built, remade the shifter rod setup , and currently trying to install the headlight cluster. And to answer the question about steel, it's 120wall 1in square tubing. Here are better pics
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May 5th, 2018, 07:07 PM | #17 |
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Looks awesome. Have you driven it yet?
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May 5th, 2018, 07:10 PM | #18 |
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Not yet hopefully within these next two weeks I still need to do the wiring harness and welding and a few other odds and ends. I also need to hook up rear brake
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May 5th, 2018, 07:12 PM | #19 |
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Name: steven
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Trying to install the foot pegs before I go to work
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May 5th, 2018, 09:18 PM | #20 |
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Your chain is being ruined by lack of lube and moisture!
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May 5th, 2018, 09:26 PM | #21 |
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Name: steven
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Negative that's an old chain I'm using just for mock-up it'll have a brand new chain before it hits the road
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May 6th, 2018, 04:52 AM | #22 |
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Name: Tim
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Great project! You can learn a lot by designing and building yourself.
I am afraid though,speaking of driving off of just one rear wheel,you may have a substantial pull to the freewheel side during acceleration and cruse. Under deceleration it will tend to pull towards the drive wheel. This may make for some pretty unsettling handling caractaristics. |
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May 6th, 2018, 05:18 AM | #23 |
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I've built another trike, with the same set up. It worked just fine. The effect should lessen with a longer wheelbase. And it doesn't have a hundred horsepower... Lol
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May 6th, 2018, 06:13 AM | #24 |
Guy Who Enjoys Riding
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Whew, glad to hear that. The one that was on my 250 when I got it was worse than that one. The guy I bought it from said he didn't know why it had gotten rusty.
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May 6th, 2018, 06:19 AM | #25 |
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Name: steven
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We had a big storm come through vegas a few days ago and rusted up the chain and frame. I understand the concern, so many riders do not know how lube and properly tighten a chain, and then they wonder why it didn't last long LOL
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May 6th, 2018, 06:48 AM | #26 |
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When yo get it on the road it would be great to see a video of the trike in action.
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May 6th, 2018, 06:51 AM | #27 |
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Don't worry, there will most definitely be a video of the trike in action. I can't wait to ride it myself. It's killing me everytime I think I get closer to finishing it I still have a hundred more things to do.
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May 7th, 2018, 07:29 AM | #28 | |
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Quote:
I look forward to seeing the finished product! |
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May 7th, 2018, 07:35 AM | #29 |
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I had an 07 ninja that my buddy crashed that we turned into a Streetfighter and we decided to make it into a trike by just making the rectangle for the swingarm and put an axle into tires on it. I learned a lot of lessons from that monstrosity.
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May 7th, 2018, 07:37 AM | #30 |
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I'll tackle exhaust placement today, that'll be fun I'm sure... I mounted the air box yesterday. I'll update with more pics this afternoon.
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May 7th, 2018, 08:31 AM | #31 |
Cat herder
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Caveat: I'm not a real engineer (though I did stay at a Holiday Inn Express last night).
It looks to me like there's a weak point in the design, at the front end of the "bedstead" frame. You've got the head tube braced to a pair of longitudinal tubes along the centerline, and a set of semi-triangulated trusses along the side rails. But to my eye, the sum total looks like it's be pretty flexy in an area where there will be significant bending loads. Seems like there should be additional triangulation going on to add rigidity to the whole. If the frame flexes significantly around the Y axis (X being longitudinal, Z being vertical) it'll affect geometry. Interested to see the ride report, and how well it deals with bumps.
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May 7th, 2018, 09:25 AM | #32 |
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I agree with your diagnosis however the frame is pretty stiff now but will still need some additional support and different areas just to be safe.
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May 7th, 2018, 09:49 AM | #33 |
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Stiff is relative to load. It can experience 8-10gs easily when hitting bumps. Fatigue is more concern over time.
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May 7th, 2018, 11:14 AM | #34 |
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Well, I am no engineer however I've been building street-legal custom frames from the ground up for a few years now and I live by one rule, ( IF IT BREAKS I DIE). This way I already know it needs to work no matter what because my life is on the line. That's good motivation to get it right.
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May 8th, 2018, 04:04 PM | #35 | |
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May 8th, 2018, 04:26 PM | #36 | |
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May 8th, 2018, 04:33 PM | #37 |
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Yes I do build all of my vehicles out of square tubing they hold up just fine for the purpose I built them. I'm confused about why you say that the bars holding the head are not finished by the seat? And despite what it looks like my rear bearings are not office chair quality, they are sealed bearings attached to a thick plate of steel, they're not going anywhere in a turn.
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May 8th, 2018, 04:37 PM | #38 |
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Akima, I was going to use one of those aluminum rolled tanks but since the other gas tank holds 4.5 gallons and had a locking gas cap I figured I'd just use it instead
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May 8th, 2018, 04:47 PM | #39 |
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Name: steven
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Here's a street legal bike I made that worked just fine even on the freeway also made from mild square tubing...
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May 9th, 2018, 04:06 AM | #40 |
ninjette.org member
Name: steven
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Trike update. I finished the plumbing for the exhaust now I need to make brackets to hold up the cans. Here's some new pics
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