Wirth Fork Springs - any good?

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Mav617
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Wirth Fork Springs - any good?

Post by Mav617 » Sun Mar 06, 2016 8:28 pm

Just ordered some of these: http://www.ebay.co.uk/itm/331721495280? ... EBIDX%3AIT

after a few beers :roll: then realised I should have asked on here first. No doubt an improvement over the near 20 year old originals but you might know better?

Any recommendations of fork oil weight (I'm nearly 13 stone kitted up)?
GP100, Z200, RD250LC, CB250RS, RD250LC, GSXR400, RZ250LC, TZR250, FZR600, FZR600R, SZR660, VTR1000F, TRX850 x 2, MT-03, LCII 350 YPVS, VTR1000F

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Mincehead
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Re: Wirth Fork Springs - any good?

Post by Mincehead » Sun Mar 06, 2016 9:24 pm

Again SEARCH is your friend pal, all been discussed many times before over the years. :wink:
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Con Rod
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Re: Wirth Fork Springs - any good?

Post by Con Rod » Mon Mar 07, 2016 8:06 am

As Mince says, there is a lot of info on the forum on springs but in my opinion progressive springs dont really deliver what is expect, they have too little spring rate where you want it reasonably firm in braking on smooth surfaces and the like

if you are really good you can use the dive to your advantage but for mere mortals a linear spring will give you linear performance of the spring which is better in my opinion

you can also use oil weights and air gaps to tune suspension with linear springs but this is much more difficult when you don't have a constant spring rate

I would suggest getting linear springs to suit your weight, get the sag right and then adjust the oil weight for the damping you want

Racetech have a calculator

http://racetech.com/
Paul

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Mincehead
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Re: Wirth Fork Springs - any good?

Post by Mincehead » Mon Mar 07, 2016 8:13 am

:wink: =D>
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Mincehead
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Re: Wirth Fork Springs - any good?

Post by Mincehead » Mon Mar 07, 2016 8:26 am

Just because I`m sat doing ferk all but trawling bike sites and forums here you go, pages n pages of suspension talk. :wink:

http://www.trx850.com/phpBB_forum/searc ... mit=Search

Just noticed where you are fella, pretty much a neighbour, I`m in Horsham.
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