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Old 03-16-2011, 04:15 PM   #91
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Originally Posted by Uncle Ernie View Post
R7; Even BMW deemed it too expensive to build












Did anyone see the R7 at the Amelia Island Concourse this past weekend?
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Old 03-16-2011, 07:47 PM   #92
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Wow! That red BMW on the previous page is something else.

For those wondering about room in those heads for OHCs, if the bike does have Desmodromic valve gear as the decal implies, no valve springs. That saves a fair amount of space.

The bevel drive above the cylinders - that is what puzzles me more.
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Old 03-16-2011, 08:45 PM   #93
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Here is a site with some desmo heads for BMWs.

http://www.advrider.com/forums/showthread.php?t=625758
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Old 03-16-2011, 10:03 PM   #94
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Quote:
Originally Posted by mark1305 View Post
For those wondering about room in those heads for OHCs, if the bike does have Desmodromic valve gear as the decal implies, no valve springs. That saves a fair amount of space.
Not really. You still need to have the valve stem protrude through the guide the full length of it's travel and additionally have room for the closing rocker under a collet midway down the stem. They might take even MORE depth than the standard BMW arrangement. I'm also curious how those cams are driven. I wonder if the cams, rockers, valves and shims are standard ducati parts.
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Old 03-17-2011, 09:19 AM   #95
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Agreed on what you're saying about the space. But the saving I'm referring to is what is gained by either not having to place the cam over the valve stems/springs, nor having to utilize traditional rockers between a cam and a valve. Desmo seems more compact to me, even if only by a little bit.

Looking at that BMW head, it later occurred to me that it looks like the cam bearings may be smaller than Ducati cams, thus lowering the overall height of the head and valve cover slightly compared to a Duc. All my time was spent on 2V rubber band motors, though. I've never stuck my paws into a bevel head. Drooled on quite a few at the annual Daytona Ducati Days though.
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Old 03-17-2011, 10:06 AM   #96
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Originally Posted by Kentucky View Post
Did anyone see the R7 at the Amelia Island Concourse this past weekend?

For those of you who have a Facebook account:

http://www.facebook.com/#!/photo.php...26944527336327
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Old 10-19-2011, 11:31 AM   #97
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A friend of a friend is building something seriously rowdy for a trip to bonneville:

Here's a hint:




Uh oh...



Maybe the fastest monolever G/S ever? We'll see.
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Old 10-20-2011, 02:00 AM   #98
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that's nowhere near enough info and you know it!
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Old 10-20-2011, 02:29 AM   #99
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Old 10-20-2011, 03:47 AM   #100
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Old 10-20-2011, 07:24 AM   #101
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Originally Posted by bgoodsoil View Post
that's nowhere near enough info and you know it!
I know, but it's all I have. Not my pics.
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Old 10-20-2011, 10:35 AM   #102
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well dern.

Nice pic,MIOB! Here's my contribution to the thread. I need someone with a good camera to get me some closeups!

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bgoodsoil screwed with this post 10-20-2011 at 10:52 AM
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Old 10-20-2011, 01:39 PM   #103
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Old 10-20-2011, 04:37 PM   #104
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So did you nail the mailbox? I will not let you ride my bike no matter what!


Quote:
Originally Posted by bgoodsoil View Post
well dern.

Nice pic,MIOB! Here's my contribution to the thread. I need someone with a good camera to get me some closeups!

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Old 03-05-2012, 03:04 PM   #105
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Originally Posted by Lornce View Post
Chris Hodgson of CC Products/San Jose BMW with his land speed record holding R75/5.






The Real Deal.


What qualifies this bike to race in the "modified" frame class. is it the fact that the rear subframe has been modified? i guess my question is what is the mininum that separates a "production" framed racer from a "modified" I'm thinking about goint to the salt and am curious to know, and havent bought the rule book yet. thanks.
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