Elka rear shocks

[Shortyy]

Hoping someone here may have some info. I picked up a 09 zx6r for the track and it’s got the suspension done already but I’m sure the rear spring is way too heavy for me. Anyone have any details where I could maybe find info/compatible spring?

Elka no longer makes bike shocks so there’s not much help there.

 

[motomania2007]

Pull the spring and see if you can see a rating printed on it. And if you can't, then take the spring to suspension shop and they can measure the spring rate. And they can advise you where to get a replacement that is the proper spring rate for you.

 

[stangmx13]

There's likely dimensions or a part number printed on the spring. Quick search suggested it'll be an Eibach spring with a number like 0500.225.625 - 5" long, 2.25" ID, 625 lbs/in rate. If the spring is blue instead of red, it's probably a Hyperco spring with a part number that'll probably come up in Google.

If the spring is way too heavy for you, the damping is likely way off as well. You'll probably want to get a good suspension shop to re-valve it. But for all of this suspension stuff, it's better not to guess. Find the springrate, reach out to a shop that has experience with racing Kawi's, and ask them if the rate is within range.

 

[two wheel tramp]

Call Cogent Dynamics. They serviced my Elka. They may be able to help.

Motocd.com

 

[Holeshot]

What kind of (rider) Sag numbers can you get out of the shock?

 

[Slow Goat]

I had an Elka on my Ninja650 and used an Eibach spring on it. Pretty much as Robert described it.

 

[TWF]

Elka uses 2.25" ID for spring. As long length is correct any spring with 2.25 ID will work. Eibach, Hyperco, Ohlins...