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Old 03-15-2013, 06:53 AM   #301
Gangplank OP
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Originally Posted by dirtysouthjacket View Post
Gangplank, you made this statement back on like page 8 or 9. But you didn't state a reason. Was it merely cost that you went with the Shiver? I think later on you mentioned that you were still thinking about trying the YZ even after the shiver swap. Just wondering your reasons....
Easy to find a set. They are everywhere on fleabay. 11.8" travel. The only hard part is figuring out if the top cap will fit or how to make it work with the f800 tubes. :)

I'm not saying it will work just that it might. A good tuning shop can help here.
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Old 03-15-2013, 06:55 AM   #302
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The YZ fork is a completely different beast. The shiver conversion works well because the Bimmer fork dropouts were originally designed to have the nicer dampers. They have the correct "seat" if you will, for the better damper to sit in. All the machining is only to fit the compression adjuster.

In the YZ fork, the spring seats at the bottom of the fork, and I think the retrofit would be a challenging one. I would stick with the Shiver 45 damper because it's a guaranteed fit and they are great forks once tuned properly.
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Old 03-15-2013, 07:03 AM   #303
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Originally Posted by DoWorkSon View Post
So tell me if these would work.... I'm a bit confused and don't know if they will match up.

The forks I'm looking at are:

-12inch travel
-total fork length of 36"
- upper fork diameter 53mm
-lower fork 58mm
-45mm fork tube
-rebound/compression/air bleed screw on both

Just wanna confirm this is close to RXV forks and will work
Keep in mind you are using the internals from the donor fork not the tubes. So long as

1) they have enough travel & length. You can always shorten them internally using a spacer but it's hard to make them longer.


2) You have to machine the bottom feet of the BMW to accept the donor bottom adjuster which is compression

3) You have to fit the top caps from the donor fork to the BMW stock tubes. Or you might be able to machine the stock top caps to work with the donor fork.

So yes those you have look like they will work if the top caps fit.
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Old 03-15-2013, 07:08 AM   #304
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Originally Posted by DoWorkSon View Post
So tell me if these would work.... I'm a bit confused and don't know if they will match up.

The forks I'm looking at are:

-12inch travel
-total fork length of 36"
- upper fork diameter 53mm
-lower fork 58mm
-45mm fork tube
-rebound/compression/air bleed screw on both

Just wanna confirm this is close to RXV forks and will work


I just caught this, but if you're looking at a brand other than Marzocchi you may run into trouble with the swap. So ya, what gangplank said.
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Old 03-15-2013, 07:31 AM   #305
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Originally Posted by epicxcrider View Post
I just caught this, but if you're looking at a brand other than Marzocchi you may run into trouble with the swap. So ya, what gangplank said.
They are marzocchi. PM sent!
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Old 03-15-2013, 07:50 AM   #306
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Originally Posted by Gangplank View Post
Easy to find a set. They are everywhere on fleabay. 11.8" travel. The only hard part is figuring out if the top cap will fit or how to make it work with the f800 tubes. :)

I'm not saying it will work just that it might. A good tuning shop can help here.
Ok gotcha!
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Old 03-15-2013, 08:54 AM   #307
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Quote:
Originally Posted by epicxcrider View Post
The YZ fork is a completely different beast. The shiver conversion works well because the Bimmer fork dropouts were originally designed to have the nicer dampers. They have the correct "seat" if you will, for the better damper to sit in. All the machining is only to fit the compression adjuster.

In the YZ fork, the spring seats at the bottom of the fork, and I think the retrofit would be a challenging one. I would stick with the Shiver 45 damper because it's a guaranteed fit and they are great forks once tuned properly.
Yes I agree. It would be starting from scratch to determine if the internals from any other fork could be used for the swap. The Marzocchi Shiver 45 forks are a direct swap with just the machining of the bottom feet and that makes it easy.
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Old 03-15-2013, 03:43 PM   #308
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Anyone have pics, or method for making the spacer that shortens the travel? I know it's been said its a 40mm spacer, but any of info on it? It is a precise machines part, or a DIY item?
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Old 03-15-2013, 07:43 PM   #309
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Originally Posted by DoWorkSon View Post
Anyone have pics, or method for making the spacer that shortens the travel? I know it's been said its a 40mm spacer, but any of info on it? It is a precise machines part, or a DIY item?
Picture is on the first page, post 8. Discussion follows.
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Old 03-16-2013, 01:25 PM   #310
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Picture is on the first page, post 8. Discussion follows.
I see a pic and some discussion, but it seems like most are sayig it was made by their suspension guy.

Is it just a 40mm cylinder that slides over the rod. Two holes in it, one to line up with hole in rod, and another so a bolt can tighten it to the rod and secure it in place?
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Old 03-19-2013, 06:25 PM   #311
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Originally Posted by DoWorkSon View Post
I see a pic and some discussion, but it seems like most are sayig it was made by their suspension guy.

Is it just a 40mm cylinder that slides over the rod. Two holes in it, one to line up with hole in rod, and another so a bolt can tighten it to the rod and secure it in place?
Anyone?

I just got a pair of forks so should be doing this mod within the next few weeks....
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Old 03-19-2013, 06:29 PM   #312
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Originally Posted by DoWorkSon View Post
Anyone?

I just got a pair of forks so should be doing this mod within the next few weeks....

I just don't recall. I think mine was made with a spring instead of a plastic spacer.
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Old 03-21-2013, 06:15 PM   #313
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So no need for some machined metal spacer? Plastic will do?
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Old 03-21-2013, 11:25 PM   #314
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So no need for some machined metal spacer? Plastic will do?
Pretty sure a plastic fork spacer like the ones made by Moose racing will do.
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Old 03-22-2013, 06:50 AM   #315
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So no need for some machined metal spacer? Plastic will do?
Are you planning on taking the forks to a suspension shop to be set up? If so, you can just have them put the right length spacer for your springs in, so you don't have to figure the length out. If you aren't going to take it to a suspension shop, you can just do what Epicxrider did and leave the spacer out if you have the same fork length that he did.
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