(E-Mail Removed) wrote:
> Thus spake Mike Civil ((E-Mail Removed)) unto the assembled multitudes:
>
>> Checked tyres for pressure, wear, cuts or foreign objects lately?
>
> Yep. The noise cannot be anything to do with the tyres. Famous last words... ;-)
>
> I've just had a request from a student who wants to make a sound recording of
> our server room. Perhaps I could get him to record my bike too ;-)

Wall of death? Or just a narrow squeak?

--
Rusty

On 10 Feb 2011 10:28:48 GMT, (E-Mail Removed)
<(E-Mail Removed)>
wrote in <(E-Mail Removed)>:
> It only ever seems
> to be that stretch of road where it happens, but I know that's a bit of a
> daft correlation. At that point I have done 13 miles from home

They haven't re-surfaced that stretch of road recently, have they?

--
Ivan Reid, School of Engineering & Design, _____________ CMS Collaboration,
Brunel University. Ivan.Reid@[brunel.ac.uk|cern.ch] Room 40-1-B12, CERN
GSX600F, RG250WD "You Porsche. Me pass!" DoD #484 JKLO#003, 005
WP7# 3000 LC Unit #2368 (tinlc) UKMC#00009 BOTAFOT#16 UKRMMA#7 (Hon)
KotPT -- "for stupidity above and beyond the call of duty".

On 9 Feb 2011 12:22:40 GMT, (E-Mail Removed) wrote:

>Whilst doing the Lewes bypass yesterday morning (having just emerged from a
>miserable few miles of freezing fog) on my '93 Trident 900, at about 80mph I
>became aware, above the wind noise, of a screeching sound coming from below,
>not unlike a small electric motor being over-revved and its bearings
>complaining.

Have you tried leaving the pillion at home?

--
-Pip

Pip Luscher wrote:
> On 9 Feb 2011 12:22:40 GMT, (E-Mail Removed) wrote:
>
>> Whilst doing the Lewes bypass yesterday morning (having just emerged from a
>> miserable few miles of freezing fog) on my '93 Trident 900, at about 80mph I
>> became aware, above the wind noise, of a screeching sound coming from below,
>> not unlike a small electric motor being over-revved and its bearings
>> complaining.
>
> Have you tried leaving the pillion at home?

You (nearly) owe me a keyboard.

--
Rusty

Thus spake Pip Luscher ((E-Mail Removed)) unto the assembled multitudes:

>>Whilst doing the Lewes bypass yesterday morning (having just emerged from a
>>miserable few miles of freezing fog) on my '93 Trident 900, at about 80mph I
>>became aware, above the wind noise, of a screeching sound coming from below,
>>not unlike a small electric motor being over-revved and its bearings
>>complaining.

> Have you tried leaving the pillion at home?

No point. She's been struck dumb by terror anyway.

--
Andy Clews
*** Remove DENTURES if replying by email ***

Thus spake Ivan D. Reid ((E-Mail Removed)) unto the assembled multitudes:
>> It only ever seems
>> to be that stretch of road where it happens, but I know that's a bit of a
>> daft correlation. At that point I have done 13 miles from home

> They haven't re-surfaced that stretch of road recently, have they?

Nope. I think the reason why it happens there is because I've done enough
miles by then for everything to have reached nominal running temperature, and
it's the first stretch of road on the journey where one can reach and sustain
a fairly high speed. If, as I suspect, it's a problem with the speedo drive
then that might be the place where it's most likely to give trouble, if you
follow my peculiar logic.

--
Andy Clews
*** Remove DENTURES if replying by email ***

Thus spake M.Badger ((E-Mail Removed)) unto the assembled multitudes:

> I had a similar thing on a car once. Took ages to track it down. After a
> certain distance, a squeal and rattle would start from the offside front. It
> sounded like the wheel bearing was about to die, yet I could detect no play
> or rough spots. Turned out to be the anti-rattle shims on the pads. A spodge
> more copper grease and the noise went away. It took about 10 miles on the
> motorway to develop and lasted for about 20 miles before quietening down
> again. Cheap and easy to check.

Thanks I'll look into that possibility.

> Also cheap and easy to check are the front wheel bearings and speedo drive,
> as others have suggested.

The bike is overdue a service and its MOT has just expired, so I might get my
friendly mechanic to give it a good look over before getting it tested. I
know I could probably see to this myself but I'm getting lazy in my advancing
age.

> The suggestion of a change to the road surface is
> a good one. Is there an alternative route that offers a similar combination
> of speed and distance?.

Well, yes, but it's rather out of my way. Alternatively a trip down to
Eastbourne would produce similar conditions.

> Also, if it varies only/mostly with speed, not engine speed, is the chain
> OK?

The chain is getting on a bit, to be honest, but I keep it lubed and it has
had a fairly easy life. I haven't adjusted it for a while, though.

The noise does sound as if it's coming from the front, but I can't be 100% sure.

--
Andy Clews
*** Remove DENTURES if replying by email ***

(E-Mail Removed) wrote:

> The noise does sound as if it's coming from the front, but I can't be 100% sure.

Especially as you'll have some sort of fairing to duct it.

--
Rusty

Thus spake Rusty Hinge ((E-Mail Removed)) unto the assembled multitudes:
> (E-Mail Removed) wrote:

>> The noise does sound as if it's coming from the front, but I can't be 100% sure.

> Especially as you'll have some sort of fairing to duct it.

Sir must be thinking of a Trident Sprint. Mine is the plain, nekked Trident.

--
Andy Clews
*** Remove DENTURES if replying by email ***

(E-Mail Removed) wrote:
> Thus spake Rusty Hinge ((E-Mail Removed)) unto the assembled multitudes:
>> (E-Mail Removed) wrote:
>
>>> The noise does sound as if it's coming from the front, but I can't be 100% sure.
>
>> Especially as you'll have some sort of fairing to duct it.
>
> Sir must be thinking of a Trident Sprint. Mine is the plain, nekked Trident.

Ah. A *proper* botormiccyclist*!

--
Rusty