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Topic summary

Posted by Darth Wraith
 - September 13, 2014, 07:06:03 AM

I put progressive Wirth springs in my fork with 15 W oil, as they recommend, but I think the result is to stiff. Never bottoming, though...

Posted by BC
 - August 20, 2014, 16:03:57 PM

The spacer was the right lenght.Changed fork oil last sunday,couldnt get hold of anything else but 10w.But ithe oilchange did the job,the fork is not bottoming now! The old oil looked like it been there since 2001,,     ;o)

Posted by BC
 - July 29, 2014, 13:05:14 PM

Great,thank you very much! Im gonna measure the spacer mount high as soon as i have the time.

Posted by CDNRatMan
 - July 28, 2014, 16:42:08 PM

hope this has the info you need..

Posted by BC
 - July 28, 2014, 16:31:58 PM

Thanks CDNRatman for the info!
Anybody has the correct length (in mm,im Swedish  ;o)  of the spacers in the fork? Mine seems to be much shorter than som spacers-pics ive just saw.Maybe som previous owner had the bike lowered that way.

Posted by CDNRatMan
 - July 28, 2014, 14:36:19 PM

  I had issues with  really "soft" front forks, I could bottom them out under normal riding and on hard corners it would bounce. I took GreenBarn's advice and went with progressive front fork springs for the 1500. I then used the recommended type and amount of front fork oil and it made a huge difference, and the ride is now really smooth.

Posted by BC
 - July 28, 2014, 14:21:06 PM

Thanks everybody! Nice links there and good info!
I will try a higher grade oil,will 15w or even 20w be enough for my purpose you think?

Posted by pcarrell
 - July 27, 2014, 21:23:29 PM

Tecumseh is right!  A heavier oil is the way to go here!

Posted by Troll
 - July 27, 2014, 18:12:52 PM

No drains. You will have to take them out of the yoke and pop the tops, invert them in a coffee can and wait...

Posted by Tecumseh
 - July 27, 2014, 17:49:19 PM
Quote from: BC on July 27, 2014, 17:33:35 PM

Hi guys,my front fork bottoms really easy,and i was wandering how much i can "overfill" to make it a bit stiffer? Right now its 292mm as by the book.
Measured the springs,and they are well within speccs.So this idea of adding some more oil is just a Quick fix (if it works) im going to put in some progressive springs when the riding season is over. And is there a way to drain the forks from oil,without disassemble the forks?

Over filling will lead to blown fork seals! not a good idea. try a heavier oil.
Posted by BC
 - July 27, 2014, 17:33:35 PM

Hi guys,my front fork bottoms really easy,and i was wandering how much i can "overfill" to make it a bit stiffer? Right now its 292mm as by the book.
Measured the springs,and they are well within speccs.So this idea of adding some more oil is just a Quick fix (if it works) im going to put in some progressive springs when the riding season is over. And is there a way to drain the forks from oil,without disassemble the forks?

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