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Posted (edited)

I bent a swing arm because with a stock spring, it bottomed out. I put an Eibach on but it is really stiff. I am hoping to put the stock spring back in if peolpe out there are running it with success. I might just need a re-charge to keep the bike off the stoppers...???...???

Edited by Wauge28
Posted
stclar816...I like your avatar much beter :o

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Damn, nice banshee. I like that color alot. Wheels look sick. Great job. :clap:

 

As for my avatar, thanks...Alot of people around here seem to like it. :confused:

Posted

What do you weigh? Whata re the numbers on the Eibach spring? It might be too much rate for you. The stock spring will be to soft...

Posted
What do you weigh?  Whata re the numbers on the Eibach spring?  It might be too much rate for you.  The stock spring will be to soft...

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I was going to post and tell you to get ahold of DUNEDEMON... guess he got ahold of you :clap:

Posted
I'm running the stock spring on a +6 arm.  I have the preload cranked all the way down and it seems fine.  I'm about 170lbs though. :cheers:

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:whoa: I weigh 170, ride a +4 arm and run a 426 LB/IN (7.6 KG) spring on the back stock is 308 LB/IN (5.4 KG) waaaaaaaaaaaay to soft for a 170 lb guy on a +6 arm even with the pre-load cranked all the way down, all that does is adjust ride height, you have it maxed out because your spring rate is too light.

Posted
:whoa:  I weigh 170, ride a +4 arm and run a 426 LB/IN  (7.6 KG) spring on the back stock is 308 LB/IN (5.4 KG)  waaaaaaaaaaaay to soft for a 170 lb guy  on a +6 arm even with the pre-load cranked all the way down, all that does is adjust ride height, you have it maxed out because your spring rate is too light.

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Thanks guys.

 

Dunedemon,

 

I have a 7.6 Eibach (I think...might even be an 8.2) WB was out of the rate I really needed according to the tech guys so I went to this one. I loved the way the bike took the bumps with the stock spring but of course the bottoming out has to go. I dropped my shock off at Yamaha last night to have it recharged.

 

Question: Does the shock offer any support when fully charged? With gas shocks on a car, it is only enough to extend the shock when it has been compressed. I guess I was hoping that my shock was low on a charge and re-charging it might help out my stock spring rate????? Wishfull thinking?

 

I was thinking about making a 1 or 2 inch spacer to give myself more pre-load. Is that not going to help me? I understand how springs work and I know that unless it is a progressive rate spring, the rate should be the same at 1 inch as it is with 4 inches. I would just think at some point, more pre-load would have to increase rate a bit? Again, Am I hoping for too much :confused: ????

 

BTW, I weight 180 and ride only the dunes.

 

Thanks to all again.

Posted (edited)

Wauge28

 

I have a 7.6 Eibach (I think...might even be an 8.2) WB was out of the rate I really needed according to the tech guys so I went to this one. I loved the way the bike took the bumps with the stock spring but of course the bottoming out has to go

I would need to know which one it is for sure, plus with that much rate you really need to think about having the shock re-valved to work with the increased rate ( I forgot to mention this earlier)

Question: Does the shock offer any support when fully charged? With gas shocks on a car, it is only enough to extend the shock when it has been compressed. I guess I was hoping that my shock was low on a charge and re-charging it might help out my stock spring rate????? Wishfull thinking?

Yes, wishful thinking. The nitrogen charge helps maintain pressure on the piston seperating the oil in the shock, it will not affect spring rate.

I was thinking about making a 1 or 2 inch spacer to give myself more pre-load. Is that not going to help me?

No it will not, this would simply cause the spring to block out (some people call it "coil bind" ) before you use all of the rear shocks travel resulting in an even worse bottoming condition.

I would just think at some point, more pre-load would have to increase rate a bit?

Pre-load in a linear rate set up will not change the working spring rate.

 

In my opinion given your weight and swing arm length with a good re-valve and a 7.6 or 8.1 spring you should have no issues, this is an educated guess simply because I am not familiar with your riding style. I dune very aggressively and this set up works excellent for me (+4 with a 7.6) - but I do have a TCS revalved rear shock.

Edited by DUNEDEMON
Posted

Perfect. Very complete answer and THANKS! Kinda what I was affraid of. headed to the dunes Friday and sounds like I need to pick the lesser of the two evils.

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