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Old 01-30-2011, 10:35 AM   #76
crazydrummerdude
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I'm reminded of when I slotted the fender brace on the front of my R90 so I could slide it up to fit a bigger tire in it. People posted and PM'ed me that I lost all structural rigidity in the front end (and that I was a poser). Let's see.. a piece of stamped sheet metal carries the shear and the axle does nothing? Sorry, I don't buy it.

Probably similar to a rear fender on a /2. While it probably does contribute to overall structural integrity, it's removal is negligible. Just my opinion.
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Old 01-30-2011, 10:45 AM   #77
datchew
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i went and looked at it again.

Where does all the stress come from? The tire and wheel. It travels up through the driveshaft swingarm and gives warm greetings to Mr Frame @ the swingarm pivot bolts which are about the thickness of my thumb. That section is a large steel box with 3 cross braces.

1 is at the swingarm interface as seen easily in this picture.
The 2nd is above the battery "box"
the 3rd is 3-4" below and parallel to the swingarm cross brace.

That's a pretty strong twist preventer and I doubt that rear fender would even notice it.

All that being said, I think drummerdude needs a senior project. Get those /2's running and put strain gauges all over them and let us know what's going on, mkay?
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Old 01-30-2011, 11:12 AM   #78
crazydrummerdude
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Quote:
Originally Posted by datchew View Post
All that being said, I think drummerdude needs a senior project. Get those /2's running and put strain gauges all over them and let us know what's going on, mkay?
I've thought about modeling a /6 before, but now I want to model a /2. Of course a strain rosette or two would be pretty simple.. but that sounds like a mechanical engineer project. As an aerospace engineer, my senior design project is:



An autonomous bomber. We're actually starting to build it. We'll fly it at the end of the semester.
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Old 01-30-2011, 01:43 PM   #79
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So I was looking at one of the bikes there. Looked like an XR750 but a single to me. Got to reading and it's a Yamaha SR500 with a tank done up like the XR750. Found it here.


Great video, by the way.
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Old 01-30-2011, 02:06 PM   #80
supervision
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Thumb

I love the vid I have had old bikes most of my life. My 82 yamaha vision is my most modern, Here's a vid on you-tube: google Flat Track Rat Pack tell me what you think
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Old 01-30-2011, 02:48 PM   #81
Lornce
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I had no idea I was so hip.

Thanks. That was a great link!


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Old 01-30-2011, 03:17 PM   #82
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Okay, just a couple of observations from this old frumpy boring guy....

Really enjoyed the music in that video. And it was good to see that at least one of those knobs had the good sense to wear a pair of boots while profiling on his wannabe hipster sled.

SR500's are dead simple to start - if you know the drill and do it right.

When I saw that one kid do that funky little power slide fish tail get-away on the gravel I thought "Cool. One of them can actually ride!" Then I looked at the stills and saw those retarded treadless bobber tires which look like they belong on a Model A that all the sneaker-boys like to run. And it all made sense. How disappointing...

Oh, well. Guys like that are good for the economy.


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Old 01-30-2011, 03:43 PM   #83
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Crazy Drummer, Keep up your good work!
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Old 01-30-2011, 04:24 PM   #84
datchew
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Aerospace huh? Well, I can't fault you for that. Maybe you'll pull Nasa, Boeing, and the rest of those goons out of the crapper.
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Old 01-30-2011, 04:37 PM   #85
Lornce
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Quote:
Originally Posted by crazydrummerdude View Post
I've thought about modeling a /6 before, but now I want to model a /2. Of course a strain rosette or two would be pretty simple.. but that sounds like a mechanical engineer project. As an aerospace engineer, my senior design project is:



An autonomous bomber. We're actually starting to build it. We'll fly it at the end of the semester.
Now that's interesting.

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Old 01-30-2011, 10:43 PM   #86
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Sorry nup - that'll never fly - all the air will fall thru the holes in the wings - I'm no enjuneer but none of the other planes I've seen have all those holes.

I loved that video - watched it a few times now...
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Old 01-31-2011, 09:24 AM   #87
bk brkr baker
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For the last week the closest I've come to riding and enjoying life has been this video.

Then yesterday things changed. Three of us took off on our DS bikes and rode 200 miles through southern Ky.

The roads were twisty without end. Up and down foothills and over Pine Mountain. The roads were wet in places, had piles of salt in others, we did some gravel sections and in some places the gravel had been pushed into the earth and we rode through mud.

Man it was great.

Ride fast and be dangerous.
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Old 01-31-2011, 10:01 AM   #88
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Originally Posted by bk brkr baker View Post
The roads were twisty without end. Up and down foothills and over Pine Mountain.
Man, I love that road over Pine mountain, I needed a nap when I got to the bottom.
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Old 01-31-2011, 07:41 PM   #89
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I'll concede to that argument

Well gentlemen...My nikon d7000 body just arrived. Pair that with a lovely 50mm 1.4 lens and you have some wonderful video depth of field. I just did this quick little video to test it out, so no editing or anything neat. Mainly testing low light rand etc....
I'll treat ya'll to some moto videos allllll summer long!

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Old 01-31-2011, 07:50 PM   #90
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Can't wait.
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