GSA Light Overhaul

[Ash]

First time my hands allowed me in the garage today.

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New tyre, whilst wheel was off.

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[*DAVE*]

Nice work so far Ash
It's been good watching the progress on your bike,
and has inspired me to tidy up those rough edges on mine too.
I notice on your last photo with the new Metzeller tire fitted to the front wheel, that the two Red Dot's are not in line with the valve on the wheel.
I was told they should always be located above the valve for perfect wheel balance.
I might be talking shit, due to the better type of wheel balancing equipment these days.

 

[Ash]

Nice work so far Ash
It's been good watching the progress on your bike,
and has inspired me to tidy up those rough edges on mine too.
I notice on your last photo with the new Metzeller tire fitted to the front wheel, that the two Red Dot's are not in line with the valve on the wheel.
I was told they should always be located above the valve for perfect wheel balance.
I might be talking shit, due to the better type of wheel balancing equipment these days.

Never knew that Dave,
wheel / tyre rebalanced, but will check now.
As i am intrigued now

 

[Ash]

The dots on the sidewall typically denote unformity and weight. It's impossible to manufacture a tyre which is perfectly balanced and perfectly manufactured in the belts. As a result, all tyres have a point on the tread which is lighter than the rest of the tyre - a thin spot if you like. It's fractional - you'd never notice it unless you used tyre manufacturing equipment to find it, but its there. When the tyre is manufactured, this point is found and a coloured dot is put on the sidewall of the tyre corresponding to the light spot. Typically this is a yellow dot (although some manufacturers use different colours just to confuse us) and is known as the weight mark. Typically the yellow dot should end up aligned to the valve stem on your wheel and tyre combo. This is because you can help minimize the amount of weight needed to balance the tyre and wheel combo by mounting the tire so that its light point is matched up with the wheel's heavy balance point. Every wheel has a valve stem which cannot be moved so that is considered to be the heavy balance point for the wheel.
As well as not being able to manufacture perfectly weighted tyres, it's also nearly impossible to make a tyre which is perfectly circular. By perfectly circular, I mean down to some nauseating number of decimal places. Again, you'd be hard pushed to actually be able to tell that a tyre wasn't round without specialist equipment. Every tyre has a high and a low spot, the difference of which is called radial runout. Using sophisticated computer analysis, tyre manufacturers spin each tyre and look for the 'wobble' in the tyre at certain RPMs. It's all about harmonic frequency (you know - the frequency at which something vibrates, like the Tacoma Narrows bridge collapse). Where the first harmonic curve from the tyre wobble hits its high point, that's where the tyre's high spot is. Manufacturers typically mark this point with a red dot on the tyre sidewall, although again, some tyres have no marks, and others use different colours. This is called the uniformity mark. Correspondingly, most wheel rims are also not 100% circular, and will have a notch or a dimple stamped into the wheel rim somewhere indicating their low point. It makes sense then, that the high point of the tyre should be matched with the low point of the wheel rim to balance out the radial runout.
http://uk.wrs.yahoo.com/_ylt=A0oG75....uklegacy.com/forums/index.php?showtopic=9381

 

[Ash]

Lovely Joubly.

nearly there.
before-

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after-

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before-

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after-

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[Ash]

More or less finished

Very pleased with the result.

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couple of jobs left to do-
fit side panels.
find somebody to supply and fit the Red/Black letters on a GSA tank cover.
The problem was they never made a 21L tank bag for a GSA.
they made me one but not with the decals/lettering on

 

[y2blade]

I really enjoyed reading this lot, thanks for the PM Ash (I'd have never seen it otherwise)

honestly mate the bike looks fooking superb I can't wait to see it in the flesh :cool

 

[SamD]

Just awesome - hard to believe it's the same bike!

 

[chad]

you have done a grand job ash well done

 

[STUBBS]

looking good your undoers done you proud

 

[Ash]

looking good your undoers done you proud

undo ers,do uppers,lift offers, put back on ers
Pete the postman,
Clive the carpenter,
UPS man,
my helpful neighbors
And a couple of mates.

 

[Mort]

Looks great

Just one thing disturbs me
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Who are these couple of mates you talk of

 

[Ash]

Looks great

Just one thing disturbs me
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Who are these couple of mates you talk of

paid mates
in kind

 

[STUBBS]

paid mates
in kind

 

[deaninkl]

paid mates
in kind

Ash, as part of the therapy we distinctly agreed no more blows jobs for spanner working passers by......

Bike looks great.

 

[Timolgra]

Looks fantastic Ash

I was at Vern's yesterday, even he told me to clean my bike.
Your thread inspired me to give mine a clean this afternoon and see if it had survived all the salt this winter

 

[Canuck]

Looks fantastic Ash

I was at Vern's yesterday, even he told me to clean my bike.:MG]

I would agree with Vern. Definitely looks like it needs a wash!

 

[DrFarkoff]

Well Done Ash

An inspiration to all the moaning minnies that bleat "it's too cold!" "sure it's a GS!" and "they all look like that!"

I applaud you Sir I can only guess how much "pain" that caused you

Good Luck and SAfe Riding!

 

[Ash]

Well Done Ash

An inspiration to all the moaning minnies that bleat "it's too cold!" "sure it's a GS!" and "they all look like that!"

I applaud you Sir I can only guess how much "pain" that caused you

Good Luck and SAfe Riding!

Must admit, a fair bit of pain.But had it in my head to do it and as soon as i felt able and the chill disappeared,it had to be done.

 

[Mide]

Wow! Looks amazing!!!

Particularly like the 'Pog mo thoin' sticker

Might have to leave my bike with you so you can clean it up for me

xx