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Racetech gold valves... Who has done them?

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Hammy
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Post  reddog Sun 14 Oct 2012, 9:01 pm

I've got a set of gold valves and springs waiting to be fitted, but the instructions are pretty vague. How easy is it to do the valving? Do I need any special tools.

Any help woudl be much appreciated. Once I get back from the Malaysian MotoGP I'll either have a go myself or book it in to get it sorted at the bike shop.
reddog
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Post  mtbeerwah Sun 14 Oct 2012, 11:34 pm

I can`t help with fit,as I put mine in to get done,

not that I think its a hard job,just wanted someone who had done it a million times before,and had a good idea on the correct shimming for my riding style.

As it is,I had done 1 1/2 yr ago,and it made a massive improvement,but now i`ve gone to a wilbers rear,the front once again,doesn`t feel right,and i`m searching again to tune the front to suit the rear.

Personally,I think its a trial and error thing,to get it right to ones own feel.

I know you do a bit of track aswell, so you may have to play with it to be happy.

I hate not being able to fully adjust the front,but thats the Bandit budget.

Can`t wait to get around to putting on the GIX front folks on,so I can adjust,but will take time before that happens
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Post  PaulG Mon 15 Oct 2012, 6:31 am

It's not that difficult you just need to be methodical and follow the instructions.I suggest you work on a clean tabletop when you build the stack.
Having a soft-jawed vice to hold the valve assembly without damaging it is necessary and a vernier caliper is useful to identify the shims.A torque-wrench that can do 30 inch/pounds is useful or just do the stack screw up medium tight using a screwdriver not a allen key.Also use a 1.1mm drill for the bleed hole instead of a 1.3.
I have rebuilt the stack several times to arrive at an optimum set-up.
The NZ Racetech / Ohlins agent recommend these settings for a Bandit 1250 on the road:This is better than the Racetech recommended set-up which is aimed at American road conditions and rider weights.
Compression stack: C33 or C34 Restrictor stack: cR00.09
No more than 1.1 mm bleed hole.
You'll understand what this means when you read the instructions.
Buy some O rings in the following size id 14mm od 17.5mm thickness 1.5mm (the 1.5 mm thickness is the only critical dimension.Imperial equivalents will be fine) These tend to get damaged when the valve is extracted from the cartridge.You need two.


Here's a pictorial how-to: http://www.vstrom.info/Smf/index.php?topic=2494.0

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Post  PaulG Mon 15 Oct 2012, 6:48 am

Also use Maxima 5wt fork oil.Fork oil viscosity varies a lot across weights and brands.The Maxima is closest to the viscosity of Racetech's own brand oil.
See this table: http://www.peterverdone.com/wiki/index.php?title=Suspension_Fluid#Comercial_Brands_and_their_properties

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Post  Hammy Mon 15 Oct 2012, 7:26 am

I had mine fitted a little while ago Reddog, and couldn't be happier. I you have all the tools for the job I suppose you could do it yourself but I took mine to a pro and it was a very well spent couple of hundred. $240-250 from memory. My "guy" knew exactly what he was doing and even revamped the dampening valves to make them work much better. He also used 5wt oil.
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Post  reddog Thu 18 Oct 2012, 9:46 pm

Thanks for the info guys especially PaulG will give it a go when I get home. Getting hyped up to take the family out to Sepang tomorrow to watch MotoGP practice. My son Joshua has been telling everyone about it Smile

Strange place Malaysia, you can buy beer at the supermarket but you aren't allowed to have any pork products. You get either turkey or beef brisket as a bacon substitute. Not my cup of tea.

The scooters here are crazy too. They ride every where. Up footpaths, ride against the flow of 1 way roads and generally ride anywhere they will fit. Makes it quite difficult to cross the road with a child. Anyhow talk to you lot later.

Cheers Ryan.
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Post  LouG Sun 21 Oct 2012, 1:09 pm

The Maxima 5 wt fork oil to use is 85-150 Racing formula and is closest to the recommended Ohlins oil, standard Maxima 5 wt has a different centistoke rating

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Post  TropoBone Sat 21 Feb 2015, 12:49 am

Bit of an old thread but I've just had 1.1kg/mm Racetech springs and gold valves installed on my '08.

Ive only had a short 10km ride to/from work after collecting the bike from Richard (the guy that fitted them), but it is a very different front end from the one I'm used to. Bugger all dive when braking. 

Apparently the shim stack was a tedious job.

I went for Racetech springs rather than Cogent because the Holeshot website was down when I went to put in the order. Racetech USA got Jan from the Australian distributor www.shocktreatment.com.au to call me. I chose to buy from Jan because their price was not that much more than buying from USA, they offered product support, and Jan was very efficient and helpful.

Day off tomorrow :-). Will report further....
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Post  NZspokes Sat 21 Feb 2015, 7:26 pm

Ive done them on 2 bikes. I consider it easy. I used the suggest stack and its very good on my VTR. I did a re-shim on the rebound also.

C34 is a pretty common stack.
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Post  reddog Sun 22 Feb 2015, 9:28 am

I still haven't done mine. I'll have to book it in to a suspension guru shortly.
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Post  NZspokes Sun 22 Feb 2015, 10:37 am

reddog wrote:I still haven't done mine. I'll have to book it in to a suspension guru shortly.

Pop round with the bike, the valves and a 12 pack and I will do it for you. Very Happy
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Post  TropoBone Sun 22 Feb 2015, 8:33 pm

Well I've had my 'new' front end for a couple of days now and I like it.
First time I grabbed the brake lever I thought "oh sh!t!" because it stopped a lot harder - with far less dive.
It tips in to corners a little too easy at the moment but that may be because I've not done anything to the rear.
It also drew my attention to the front wheel alignment. I thought it was a bit off so I slackened off the pinch bolts at the lower triple clamp and axle to line her up properly.
Turns out the handlebar is bent! Must have been from when that @sshole kicked it over while parked in the city.
I'm about to load up and go on a big tour so I might up the preload at the back and see how that goes.
But it is a better ride from the front end. Worth the $$.
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Post  reddog Mon 23 Feb 2015, 12:26 am

NZspokes wrote:
reddog wrote:I still haven't done mine. I'll have to book it in to a suspension guru shortly.

Pop round with the bike, the valves and a 12 pack and I will do it for you. Very Happy


Where do you live again mate?
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Post  NZspokes Mon 23 Feb 2015, 3:29 pm

reddog wrote:
NZspokes wrote:
reddog wrote:I still haven't done mine. I'll have to book it in to a suspension guru shortly.

Pop round with the bike, the valves and a 12 pack and I will do it for you. Very Happy


Where do you live again mate?

West Auckland, New Zealand.  Laughing
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Post  Kiwisteve Mon 23 Feb 2015, 4:51 pm

NZspokes wrote:
reddog wrote:
NZspokes wrote:
reddog wrote:I still haven't done mine. I'll have to book it in to a suspension guru shortly.

Pop round with the bike, the valves and a 12 pack and I will do it for you. Very Happy

Where do you live again mate?

West Auckland, New Zealand.  Laughing

That's not far from me, I'm in far west Tauranga Razz
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Post  reddog Mon 23 Feb 2015, 9:45 pm

Bugger that's a 7 hour flight for me. Last time I was in nz was 21 years ago on a boys hockey tour
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Post  TropoBone Fri 27 Feb 2015, 2:07 pm

Got round to giving the new forks a decent (300km) run on the Cox Peninsula Road.
Much, much better than stock.
A little bit of 'tram lining' turned out to be steering head bearings just a little too tight.
Richard at AliCross backed the head bearings a 1/4 turn. Result = very, very good front end. 
It is now showing up the rear suspension.
Agree with previous posters, money well spent, why did I wait so long!
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Post  NZspokes Fri 27 Feb 2015, 3:46 pm

I will have a look at my fork, maybe over the weekend. I wont gold valve it, Have GVs in my other bike. But I may see if its worth milling out the stock pistons and run stronger stacks on them. 

At least put better springs in.
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