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Re: Sag or Preload; & suspension


 

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Actually, I'm as ignorant about suspension are you, and blindly make changes as suggested by others, and am by no means suspension tech savvy.
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I'd say if it feels fine, go with that.
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Dennis
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----- Original Message -----
Sent: Thursday, July 05, 2007 11:32 AM
Subject: [W650riders] Re: Sag or Preload; & suspension

Thank you, Dennis! It says Wheel travel, that must be the same thing
as fork travel! Never noticed, I was looking under the Suspension
chapter.

So at 50mm sag, I'm at 38.5% of full travel on the front. Perhaps a
little looser than ideal. Don't know if it's worth tinkering with
it, with longer than stock spacers, I don't think so - it feels fine
to me. What do you think?

I note also that rear wheel travel is listed in the manual at 105 mm,
so my 27mm sag measurement is 26% of that, again in the ballpark, if
not bang on there, with the Hagons. You'll recall it's about 33% of
the listed shock travel.

Thanks!

Ruari

--- In W650riders@yahoogroups.com, "Dennis J. Guggemos"
.> wrote:
>
> Ruari
>
> Manual sez 130mm - 5 1/8" front fork travel.
>
> Dennis
>
> ----- Original Message -----
> From: Ruari McLennan
> To: W650riders@yahoogroups.com
> Sent: Thursday, July 05, 2007 11:05 AM
> Subject: [W650riders] Re: Sag or Preload; & suspension
>
>
> OK, I called Dave Quinn re the rear shocks and found that the
travel
> on the Hagon 33007s is 3.2", so total sag of 27 mm is actually
33% of
> that, bang on the money! (or close enough)
>
> But, I cannot find any info as to the front fork travel, which he
> says is usually in the service or owners manual specifications.
One
> should look at 25-33% of that as a rough rule of thumb for sag,
too,
> he says.
>
> Does anyone have any ideas?
>
> Ruari
>
> --- In W650riders@yahoogroups.com, Ruari McLennan >
> wrote:
> >
> > How do I determine, "full travel?"
> >
> > Ruari
> > ----- Original Message -----
> > From: Jonhaddock@
> > To: W650riders@yahoogroups.com
> > Sent: Wednesday, July 04, 2007 1:57 AM
> > Subject: Re: [W650riders] Sag or Preload; & suspension
> >
> >
> >
> > 'Sitting on' sag should be approximately 1/4 of full travel.
> >
> > Pre-load is simply turning a ring to pre-compress the spring so
> when you are moving the ring up to squash the spring you are
> increasing pre-load. Bear in mind all you do is limit the low
speed
> springing. Once the spring starts to compress it compresses at
the
> normal rate irrespective of preload settings because springs
compress
> linearly.
> >
> >
> > Hi, I popped by the motorcycle co-op today and they measured my
> W650 preload "sag."
> > They are not terribly familiar with older style bikes, they are
> a sportbike/racer shop.
> >
> > I have Hagon progressive front fork springs, and Hagon 20 Kg.
> rear classic shocks.
> > I weigh 198 lbs dry and 217 on the bike with gear.
> >
> > They suggested 30 mm front; and 35 mm. rear was right for
> sportbikes.
> > My results were: Front 50 mm.; and rear 27 mm.
> >
>
> >
> > Any comments from you folks? I wonder if sportbike
> measurements are applicable here, particularly when the W650 rear
> shocks are so vertical by comparison.
> >
> > Ruari McLennan
> > Victoria BC
> >
>

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