Anyone know the difference from YZ to WR shock.....

We all know from reading here that the forks are NOT the same.

So what about the rear shock? Is it just a spring difference?

We all know from reading here that the forks are NOT the same.

So what about the rear shock? Is it just a spring difference?

I could be wrong but I think the springs are Ti and the spring rate is different?

This is what I THINK....

The rumor is that the valving is also different, and the yz shock has a little more travel distance, not much, but still more. SJMC_DON is right, the springs are different. When I swapped the shock I saw that the spring from the wr looked like a spring that belongs in a chinese cheap bike compared to the yz spring. That wr spring looks CHEAP!

The YZF shock is longer (slightly), valved much differently, and has a Ti spring on it from the factory.

The YZF shock is longer (slightly), valved much differently, and has a Ti spring on it from the factory.

well, there we have it, the shocks are entirely different.

I believe they will physically fit on the WR, though, and depending on what you are doing with it, can be easier to work with when going after better suspension for high speeds.

I believe they will physically fit on the WR, though, and depending on what you are doing with it, can be easier to work with when going after better suspension for high speeds.

Yes it does fit, like a glove. I know because I put one in my WR, along with forks too.

Using an aftermarket spring and having it re-valved, could a WR shock be tuned to be like a YZ shock?

Using an aftermarket spring and having it re-valved, could a WR shock be tuned to be like a YZ shock?

Most likely it could.

Using an aftermarket spring and having it re-valved, could a WR shock be tuned to be like a YZ shock?
I've heard differing opinions on that. One that stands out was that of NCMountainman, who, unless I'm misstating it, said then WR shocks were hard to work with, and required quite a bit of work. He didn't seem to care much for them. I don't know what the differences internally are, though. The Suspension Forum would be a good place to ask.

As far as the forks, Dave Johnson at Smart Performance now has his Phase 4 stuff available for the WR fork, so the forks your bike came with can now be brought up to a very high level of performance. I know you can find '06/'07 YZ450 forks, and those are among the best stock forks anywhere, but if the Phase 4 for the 48mm YZ450 open bath fork is anything to go by, the WR fork can be made at least that good. I suppose comparing the cost of the two approaches would have something to do with it. Contact him if you're interested.

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