Sun May 25 22:53:43 1997 - Message No. 901
From: "Thomas A. Engelhardt"

Subject: AW: screens


Mark Hatton wrote:
>1. I'm over 6 feet tall and found high speeds on the @ caused a lot of
noise
>and discomfort on my head and shoulders.  OK for short distances but after
>60 miles this became really tiring.  Having read good things about the
Givi
>windscreen I have bought one and tried it out this weekend.  It cost #65
>and fitted in 5 minutes.  Has anyone found the following results:- a 50%
>reduction in wind noise, a 5% increase in top speed and an increase in
>instability when passing large vehicles ?  Overall though a big       
>improvement

Hi Mark,

concerning the higher windscreen I had much less encouraging results than
you.
I am 6feet 5inches (1.95m) tall and complained about the wind being applied
to my helmet using the original windscreen. The turbulent airstream caused
by the windscreen edge resulted in loud noise in the helmet.
So I decided to buy the larger five stars windscreen which is equivalent to
the givi type.
Well, I could not determine a big difference. Actually the turbulences
still hit me but now on the upper part of the helmet which does not make a
big difference in terms of noise.
From my point of view I should better have saved the 169DM for the
windscreen. However the higher windscreen probably does a good job if the
drivers tallness does not exceed 6feet 1inch. If I duck my head one inch
the noise is better but the convienence is lower.
Next thing I will do is to shorten the original windscreen by approx. 6cm.
You can try the effect by standing up from your seat while you are driving.
The noise immediately gets lower as the airstream that hits the helmet is
laminar then.
I hope this will reduce the noise, it will certainly not reduce the the
wind pressure.

Concerning your way of lubricating your chain I would say that it is better
to apply the lubricant on the inner chain side instead to the outer side.
Reasons: 1. Due to the friction between chain and sprocket it is the inners
side where the lubricant is needed.
2. The centrifugal force while riding will do it's best to let the
lubricant come to the outer side of the chain early enough. :)

Greetings

Alex (MUC)

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