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-   -   Extending the stock shock (http://forums.sv650.org/showthread.php?t=111868)

Blue_SV650S 09-06-08 02:34 PM

Extending the stock shock
 
Ok, ground clearance on a stock SV is poor. There is the shorter dogbone trick, but this is limited.

My track SV has an ohlins rear shock, I can tell you for nothing the biggest difference it makes is in where you can adjust the ride-height!! You really can wind the shock up!! 8) But race shocks are stupidly expensive ... and I am not sure the largest gain is actually in the more controlled damping, just in the ride height ...

So this leads me on ... has anyone actually tried extending a stock SV shock? To my mind making longer fork bottoms seem to be the simplest way?

philbond07 29-10-08 08:02 AM

Re: Extending the stock shock
 
Hey Blue,

I want to change ride-hight by lifting up my k3 a bit on the rear; don't wanna use shorter dogbones. So because my oem shock is still ok I have been thinking of extending the stock shock too, by exactly same way as you describe. have you gone any further in this? I think best would be to produce a U-piece which goes internally into the U at the stock-shock, and then comes out with same width, extending it by say 20mm, so you can drill holes inthere to fit bottom again.

Blue_SV650S 29-10-08 09:48 AM

Re: Extending the stock shock
 
Nope, never did anything ...

Would you weld or bolt this new for metal bit on?

Dangerous Dave 29-10-08 10:54 AM

Re: Extending the stock shock
 
OEM shock isn't rebuildable, so doing internal work may be a bit of a problem.

Shorter linkages are far cheaper and easier to do.

yorkie_chris 29-10-08 11:21 AM

Re: Extending the stock shock
 
How much of a difference in length is needed?
Blue seems to come across as a guy who feels he needs an extra bit of length :-P

philbond07 29-10-08 11:48 AM

Re: Extending the stock shock
 
Quote:

Originally Posted by Blue_SV650S (Post 1670285)
Nope, never did anything ...

Would you weld or bolt this new for metal bit on?

Hmmm both I guess: stick bottom planes of the 2 "U"'s to each other, bolt thru the original hole, & fortify with some weld points. I guess this must be a safe construction for 3-4 years to come?

philbond07 29-10-08 11:53 AM

Re: Extending the stock shock
 
Quote:

Originally Posted by Dangerous Dave (Post 1670364)
OEM shock isn't rebuildable, so doing internal work may be a bit of a problem.

Shorter linkages are far cheaper and easier to do.


True, but then the swingarm angle gets steeper and the chain uses up the swingarm-protector quicker etc....

yorkie_chris 29-10-08 11:56 AM

Re: Extending the stock shock
 
Er? You'll have quite a job on increasing ride height without deflecting the swingarm fella

philbond07 29-10-08 11:57 AM

Re: Extending the stock shock
 
Quote:

Originally Posted by yorkie_chris (Post 1670423)
How much of a difference in length is needed?
Blue seems to come across as a guy who feels he needs an extra bit of length :-P


That's a good question.
Since I mounted hyperpro springs to the front I have the impression the bike's front is too high. As I also want to keep some rideheight I prefer to get the rear up too. How much? Not the slightest idea

I'd say what most standard aftermarket shorter dogbones do with a K3+: +25-30mm. Though I'm not sure what this distance means: is it the shock which is "pushed up" by that amount, or is it the very tail (ledlights) of the bike which comes up by that distance?

philbond07 29-10-08 12:01 PM

Re: Extending the stock shock
 
Quote:

Originally Posted by yorkie_chris (Post 1670485)
Er? You'll have quite a job on increasing ride height without deflecting the swingarm fella

Is it? I thought simply extending length of the shock doesn't influence swingarm angle a lot, clearly not as much as changing lenght of the dogbones.


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