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From: "Troy Nicks" <htroyn@...

Kirk: I was wondering if that clutch lever was stock - I like those little
finger groove indentations.

From Mac Kirkpatrick:

Good eye Troy. This obversation is new to me also. Or I have forgotten
it.....(old age!!!)
Anyway the '74s had these different indented levers. '75 and later did not.

It is important to note that the number one rule when talking about R90ss is
that there are no firm rules. For instance, by this we should mean that
BMW did not end the model run for all '74 R90ss and also end up with no
old brake and clutch levers. And then start the new model year ('75) with
different levers.
Many of the changes were "running changes" and occurred sometime during the
model year run.

It is also interesting to note that not all serial numbers were used by BMW.
Go to
and read a letter from Pat Raymond of BMW to the '77 R100RS website manager.
A number of interesting points are made here, and one is that BMW did not
make bikes for all the serial numbers that they set aside to make.
Confused by my explanation? Sorry, go read the article, it is worth it.

This makes it confusing when trying to figure out how many bikes of a
certain model were made in a given model year. You cannot look the first and
last serial number in a book and subtract one from the other (and add one?)
to come up with the number of these produced. BMW did not use all the serial
numbers they had set aside for their model runs.


Best,

Mac Kirkpatrick
Glenmoore, PA USA

In a message dated 11/11/2000 12:07:27 PM Eastern Standard Time,
eur90s@... writes:

I wish that I has the '75 switch gear... because my thumbs don't
bend in the way needed to operate those '74 things without full body
English!
Kirk

Kirk ,If you are refering to the 800 lb.clutch springs and the phlanges(sp?)
crushing force required to op the clutch, I installed a Easy Clutch
mechanisim from <A href=">Bench
Mark Werks</A> on my 75 R90S, and "voila" the miracle of all beemer clutch
modifications occurs right before your very eyes.The mechanisim is a marine
grade pulley attached to the clutch arm so that the clutch cable feeds around
the pulley and is fixed via a small alum bracket to the tranny case stud.
This arrangement cuts the lever force by 50 % . The drawback is the feel
we've all developed for clutch freeplay no longer applies and checking
free[play has to be relearned. other benefits should be less stretching of
the cable giving longer life and a quicker shift sequence rippin thru em
(which I really enjoy now) Lotsa fun shifting now.

Bruce Kramer
Allentown Pa.

Mac and Troy,
I'm just excited to learn that at least 1 pc on my bike might be original! Although, I wish that I has the '75 switch gear... because my thumbs don't bend in the way needed to operate those '74 things without full body English!
Kirk

From: "Mac Kirkpatrick" <drbeemer@...>
Reply-To: R90SWORLDNET@...
To: <R90SWORLDNET@...>
Subject: [R90SWORLDNET] Brake/Clutch Levers & Serial Numbers
Date: Fri, 10 Nov 2000 19:48:48 -0500

From: "Troy Nicks" <htroyn@...

Kirk: I was wondering if that clutch lever was stock - I like those little
finger groove indentations.

From Mac Kirkpatrick:

Good eye Troy. This obversation is new to me also. Or I have forgotten
it.....(old age!!!)
Anyway the '74s had these different indented levers. '75 and later did not.

It is important to note that the number one rule when talking about R90ss is
that there are no firm rules. For instance, by this we should mean that
BMW did not end the model run for all '74 R90ss and also end up with no
old brake and clutch levers. And then start the new model year ('75) with
different levers.
Many of the changes were "running changes" and occurred sometime during the
model year run.

It is also interesting to note that not all serial numbers were used by BMW.
Go to
and read a letter from Pat Raymond of BMW to the '77 R100RS website manager.
A number of interesting points are made here, and one is that BMW did not
make bikes for all the serial numbers that they set aside to make.
Confused by my explanation? Sorry, go read the article, it is worth it.

This makes it confusing when trying to figure out how many bikes of a
certain model were made in a given model year. You cannot look the first and
last serial number in a book and subtract one from the other (and add one?)
to come up with the number of these produced. BMW did not use all the serial
numbers they had set aside for their model runs.


Best,

Mac Kirkpatrick
Glenmoore, PA USA




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Bruce.
Thanks, I've been meaning to ask if those things really work! It's absolute hell riding an ess in stop and go city traffic, I'll take that as a recommendation and give it a try.
The other thing about a /5-/7 clutch is to keep that operating mechanism well lubricated. Otherwise you could end up "speed shifting" your way home (interesting work at red lights) like I did last winter.
Kirk

From: HBKRAMER@...
Reply-To: R90SWORLDNET@...
To: R90SWORLDNET@...
Subject: Re: [R90SWORLDNET] Brake/Clutch Levers & Serial Numbers
Date: Sat, 11 Nov 2000 14:16:38 EST

In a message dated 11/11/2000 12:07:27 PM Eastern Standard Time,
eur90s@... writes:

I wish that I has the '75 switch gear... because my thumbs don't
bend in the way needed to operate those '74 things without full body
English!
Kirk

Kirk ,If you are refering to the 800 lb.clutch springs and the phlanges(sp?)
crushing force required to op the clutch, I installed a Easy Clutch
mechanisim from <A href=">Bench
Mark Werks</A> on my 75 R90S, and "voila" the miracle of all beemer clutch
modifications occurs right before your very eyes.The mechanisim is a marine
grade pulley attached to the clutch arm so that the clutch cable feeds around
the pulley and is fixed via a small alum bracket to the tranny case stud.
This arrangement cuts the lever force by 50 % . The drawback is the feel
we've all developed for clutch freeplay no longer applies and checking
free[play has to be relearned. other benefits should be less stretching of
the cable giving longer life and a quicker shift sequence rippin thru em
(which I really enjoy now) Lotsa fun shifting now.

Bruce Kramer
Allentown Pa.


To unsubscribe from this group, send an email to:
R90SWORLDNET-unsubscribe@...

_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at .

Share information about yourself, create your own public profile at .

Kirk: I think that in many ways the '74s are very appealong due to the
aluminum gas cap, aluminum turn signal bodies, tape not paint stripes, kick
starter, the white stripe aaround the tach and speedometer glass, the bent
mirrors, indents in the hand levers, etc.
Gives the bike a certain character which I find appealing.

Best,

Mac Kirkpatrick
Glenmoore, PA USA