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Old 10-01-2013, 02:03 PM   #1546
640 Armageddon
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Quote:
Originally Posted by HogWild View Post
The more we let "smart" electronics into rally navigation, the more an essential part of rally is lost.
I think this is one of the major reasons that electronic navigation devices will not be seen in the near future (and in the distant future if you ask me... ) in Rally races. It will become like with the magnetti electronic war were you get all sorts of data for the rider. Then you just tap into the electronics of the bike, and next thing you know you have an auto pilot
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Old 10-05-2013, 07:02 PM   #1547
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Frame Attachment

I have read all this thread on Brackets, but don't see a lot on frame attachment. Which is best? Bolt-on or weld-on? Also issues welding onto
aluminum frames? I see the works Honda Rally has weld-on bracket, but is the frame treated after this?
Can't seem to find a lot on this and hope someone can help.
New to this Rally stuff and need all the help I can get.
Dave
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Old 10-08-2013, 06:25 PM   #1548
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Quote:
Originally Posted by Super Dave Hawaii View Post
I have read all this thread on Brackets, but don't see a lot on frame attachment. Which is best? Bolt-on or weld-on? Also issues welding onto
aluminum frames? I see the works Honda Rally has weld-on bracket, but is the frame treated after this?
Can't seem to find a lot on this and hope someone can help.
New to this Rally stuff and need all the help I can get.
Dave
I think weld on is the easiest because you (I) can just make a block with equally spaced threaded mounting holes and put it on and be done. The bolt on requires some designing of ID's OD's and bolt spacing etc.

Also, my XRL kit that I have all the drawings for uses a weld on anchor
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Mention to HogWild which way the wind is blowing where you're at, wait 20 minutes, and he'll post a picture of the intersection your at and a Google Earth route of how to get there.
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Old 10-08-2013, 07:21 PM   #1549
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What bike Dave?
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Old 10-08-2013, 07:24 PM   #1550
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What bike Dave?
Doing A Honda CRF450X.
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Old 10-09-2013, 12:33 AM   #1551
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Our experience has been that bolt-on is quick, easy and robust. If you have the kind of crash that's going to bend the fixing point, you simply replace the block and the bolts, but I've crashed mine numerous times from slow speed to high speed (70+) and not had any problems with it at all. It's been used for rallies over very rocky bouncy ground including desert and enduro and still no problem, so the tree we now offer is a simple bolt-on.
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Old 10-09-2013, 01:40 AM   #1552
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Quote:
Originally Posted by Super Dave Hawaii View Post
I have read all this thread on Brackets, but don't see a lot on frame attachment. Which is best? Bolt-on or weld-on? Also issues welding onto
aluminum frames? I see the works Honda Rally has weld-on bracket, but is the frame treated after this?
Can't seem to find a lot on this and hope someone can help.
New to this Rally stuff and need all the help I can get.
Dave

My guess is that it is a personal preference and not so much as an engineering problem. Both will be good with the bolted on connection performing better in a crash. As Mike said you only have to change the mount and off you go.
The question is do you want a rotating or a stationary tower? And if you want a stationary, is that because of the fairing or because of aesthetics? Usually to get a stationary design, you have to fiddle with the hole bike, where there are designs that are very easy to setup. It all depends on what you want.

At the moment I am happy with both designs, the Berg has the HDB tower and the 640A has a custom tower. HDB does a stationary design, which I wanna try in the 640 or in the Berg at a later stage, it seems pretty straight forward and the tower is very easy to build, more like a Lego design

Till later,
D.
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Old 10-09-2013, 01:54 AM   #1553
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And this is the tower from the new KTM 450 ...

It does not look like aluminium, more like a plastic... Anybody?
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Old 10-09-2013, 08:13 AM   #1554
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Originally Posted by 640 Armageddon View Post
And this is the tower from the new KTM 450 ...

It does not look like aluminium, more like a plastic... Anybody?





Almost looks like Carbon on Coma's bike??
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Old 10-09-2013, 08:16 AM   #1555
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yeah... discussed it in the other thread. You can almost see the weaves. Would be interested to see how it performs during crashes The back plate is too thick though...
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Old 10-09-2013, 08:29 AM   #1556
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Composite. Depth of cutouts will resist sideways forced
Notice the attachment is the same solid cast alu piece. It's stood the test of time
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Old 10-09-2013, 08:33 AM   #1557
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I would place a big bet that those towers are composite with aluminium honeycomb core. Great stuff, super expensive and hard to get right.
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Old 10-09-2013, 08:36 AM   #1558
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Notice the attachment is the same solid cast alu piece. It's stood the test of time
It also looks larger than before. Why did they go that route I cannot understand. Weight? The previous setup was pretty light. Stronger? May be yes may be no... It looks like a weird decision were the Kawasaki in the beginning of this thread was one of the best solutions. ... Let us see if the others follow the trend... Somebody gives them the link to this thread anyway
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Old 10-09-2013, 08:40 AM   #1559
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Originally Posted by BigMike40 View Post
I would place a big bet that those towers are composite with aluminium honeycomb core. Great stuff, super expensive and hard to get right.
If they have honeycomb then fine by me,
If they have it right it will be a hell of a part... Obviously it takes out the companies and the individuals who wanted to create exact or similar to KTM designs... But as you say, lots of $$ ....
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Old 10-09-2013, 09:15 PM   #1560
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Quote:
Originally Posted by 640 Armageddon View Post
My guess is that it is a personal preference and not so much as an engineering problem. Both will be good with the bolted on connection performing better in a crash. As Mike said you only have to change the mount and off you go.
The question is do you want a rotating or a stationary tower? And if you want a stationary, is that because of the fairing or because of aesthetics? Usually to get a stationary design, you have to fiddle with the hole bike, where there are designs that are very easy to setup. It all depends on what you want.

At the moment I am happy with both designs, the Berg has the HDB tower and the 640A has a custom tower. HDB does a stationary design, which I wanna try in the 640 or in the Berg at a later stage, it seems pretty straight forward and the tower is very easy to build, more like a Lego design

Till later,
D.
Looking at this I see such a clean set-up. This is what I'm looking for. Is this the custom one you have?
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