View Full Version : CR250 USD forks
pete-blen
28th December 2012, 07:09
Anyone know what the standard
spring rate is for 2000 CR250 USD forks.
04 has .44kg/mm would the 2000 be the same?
Going to put them on the XT660 but will
need heavyer springs.. Lots of springs on e-bay
but really need to know the std rate.."start point"
Robert Taylor
28th December 2012, 07:37
Anyone know what the standard
spring rate is for 2000 CR250 USD forks.
04 has .44kg/mm would the 2000 be the same?
Going to put them on the XT660 but will
need heavyer springs.. Lots of springs on e-bay
but really need to know the std rate.."start point"
Lots of springs here in NZ too, we have the biggest holding of springs in NZ and when you buy off us its about putting money back into the local economy. We employ New Zealanders and therefore put bread on their tables. Its all about keeping NZ working.
$249.90 per pair gst incl and its likely we will have the most appropriate rate for you. Another thing to consider is that because your application is a one off the determination of end rate is essentially still a ''best guess'' as a starting point. If it turns out that the spring rate determination is not quite on the money we undertake to exchange at no further cost excepting for freight recoveries. You wont get that sort of service from a bunch of faceless Yanks.....
Note also that your personal height, weight and application also determines the rate selection, its not totally about the maths.
pete-blen
30th December 2012, 11:43
Lots of springs here in NZ too, we have the biggest holding of springs in NZ and when you buy off us its about putting money back into the local economy. We employ New Zealanders and therefore put bread on their tables. Its all about keeping NZ working.
Putting bread on NZers tables is fair enough... but the extra it costs to buy NZ
takes bread off my table..And I work for my money so I want to eat my bread not give it to others..
I have no issues buying NZ as long as it dosn't cost me $100 or more for the privilege..
I'm sure most people would like to put $ back into NZ... but at times it just cost us so much to do it..
My rant over...
So what do yer need to know to work out a spring rate...
rider weight / bike weight / F/R wheel weight bias
Robert Taylor
30th December 2012, 15:04
Putting bread on NZers tables is fair enough... but the extra it costs to buy NZ
takes bread off my table..And I work for my money so I want to eat my bread not give it to others..
I have no issues buying NZ as long as it dosn't cost me $100 or more for the privilege..
I'm sure most people would like to put $ back into NZ... but at times it just cost us so much to do it..
My rant over...
So what do yer need to know to work out a spring rate...
rider weight / bike weight / F/R wheel weight bias
Ok, certainly I can well see all sides of the story and for business in NZ the answers arent as simple as many on this forum think. What I can see though as clear as day is that this whole situation just self perpetuates. The more stuff that is bought offshore the more that it makes NZ business less and less viable. That in turns put pressure on the ability for businesses to afford to employ people and to provide decent wage rates. In turn, in the absence of decent wage rates that is even more incentive for people to purchase offshore, especially given that the $US is so weak, that many of the dot.com internet companies operate on extremely low margins and that they fall over themselves to sell volume given that the US is now a basket case. Also the Government is missing out on a lot of gst that otherwise is accrued from NZ businesses selling goods, that is a huge inequity that seriously disadvantages NZ businesses and the people who depend on them for a living wage.
NZ is not only affected by this, small businesses in other economies are also hurting.
Nonetheless we ourselves are proactive in meeting the market as much as is possible. We cannot always match the same price but we add value and if there is a problem we are in the same country and do not have the ''buffer of distance'' to fob off any issues.
Somewhere at some stage there will have to be a balance, not all businesses will be able to reset to this new reality and the question you have to ask is where do all the displaced people go?
Like I said I can see all sides of the story.......
Yes please, your height and weight in your everyday clothes will be sufficient.
More to follow about springs............
Robert Taylor
30th December 2012, 18:14
As with rear shock springs there are fork springs and then there are fork springs!
The cheapest aftermarket fork springs are readily discernible because the polishing process is very incomplete or even deleted. I.e the surface is rough, given that most fork springs will barrell sideways on compression and are therefore supported by the inner fork tube walls an enormous amount of rubbing takes place. That slowly removes small chards of metal off both the fork springs and inner tube walls. This contaminates the oil and will find its way into the valving and piston mechanisms. Also and most noticably it will get entrapped into the soft ptfe outer coatings of the fork bushings.
Polishing processes are what takes a lot of time and magnifies the end cost somewhat. This is why highly polished / finely finished springs such as Ohlins are more expensive. Friction reduction is a biggie with supension, much moreso than people realise. What you are also paying for with premium quality fork springs are such things as
1) The rate is actually what it is stated to be on the box! On more than several occassions we have found cheaper aftermarket springs to be very poorly toleranced with respect to rating
2) End conditions....Are the ends finished off nicely and very squarely so that there automatically isnt any friction inducing side thrust applied on assembly?
3) Are those same end conditions such that the ends are actually abutted so that they dont in fact make a supposedly linear spring actually slightly progressive?
4) Are the ends polished and rounded off so there are no sharp edges? Sharp edges we evidence all too often.
5) Is the sizing such that there is just the right amount of clearance ( not too little and not too much ) so that the springs are not noisy?
6 ) Is the material spec such that the springs will not ''sack out" ? Given that there are more Chinese companies ''springing up'' I wouldnt count on this not being a headache in the future....
You only get what you pay for.
Etc Etc
Robert Taylor
30th December 2012, 18:23
Thanks Pete Blen have recieved your PM, I will briefly be going into work on New Years Day and will verify that we have suitable springs in stock
Happy new year!
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