Matris Damer install help needed

[tonkoshala]

Hey guys,

I bought the damper a from over a year ago from another board member. Dec 2010. It did not come with the mounting hardware. I was finally able to get around to getting it a few weeks ago. (the dang mounting kit cost almost as much as the damper did  )
I have now run into a problem I thought y'all could help me out with. The ball baring on end of the damper needs a M6 bolt fitting. The one that came with the kit that fits the bracket is calls for a M8 bolt. You can see in the picture the ball in the middle is a M8 and the one on the end is M6...
I am wondering if I can swap out the baring, or is there any way to make the M8 fitting on the bracket accommodate the a M6 bolt? Or am I SOL? Hope not I've waited a long time to put this thing on...

[Speeddog]

Do you have the mount that goes in the center, attaches to the keyswitch shroud bolts?

[tonkoshala]

Yeah, here is a picture of the complete setup. The problem I'm having is where the bolt is laying out in the pic. It needs to screw into the upper mount and the fitting on the damper is too small. I found that a M6 bolt will fit, but not the M8 like I need.

[Speeddog]

Usually, the rod-ends have the same size hole through the ball as the thread in the body.

What is the diameter of the shaft on the damper?

[BK_856er]

I have the same Matris M4 damper, but the version for bars - not cip-ons.

My understanding until now was that the dampers were identical and only the brackets were different.

I just checked my setup, and it seems to have M8 bolts at both positions.

I seem to recall that very early versions of the M4 damper used titanium bolts at one or both locations.  Perhaps those early versions used a spherical bearing sized for a smaller M6 bolt??

As a temporary measure, could you use a longer M6 bolt and a loctited nut on the underside of the bracket to secure things?

BK

[tonkoshala]

I still have the center bracket that was on it when I bought the damper from Monster Mash. The diameter of the shaft is the same on all of them I believe. All the bolts and fitting are the same diameter except the one that fits the spherical bearing to the upper bracket.

No go on using a nut. The mounting spot does not go all the way through the bracket. Beside I could be wrong, but it seems that area needs to be as secure with no play.

Would there be anyway to change out the spherical bearing?

[BK_856er]

The spherical bearing must press in/out.  For reference, the outside diameter of the black eye on mine is 24.5mm.  If yours is the same, perhaps you could replace the spherical bearing with a larger one appropriate for an M8 bolt.

Seems that for a truly correct installation you need a spherical bearing + bracket that pair up.  I'd put an inquiry into Matris and see what they have to say.  I've had no luck getting info from them in the past, but maybe things have improved.  I believe there is also a U.S. distributor now.

Good luck.

BK

[mendoje]

Can you unscrew the rod end from the shaft?  The hard part will be holding the shaft without damaging it.  If you can, measure the threads, then check McMaster-Carr (mcmaster.com) for rod ends with a female threaded shank in that thread size and the diameter hole that you need.

Or, find someone with a lathe.  Have 'em make a stud which is threaded M8, then steps down to M6 and threaded.  Screw and loctite the stud to the bracket, then use a nut to secure the damper end.

The problem I'm having is where the bolt is laying out in the pic. It needs to screw into the upper mount and the fitting on the damper is too small. I found that a M6 bolt will fit, but not the M8 like I need.

[booger]

How is that bracket going to mount to the triple? I saw Mash's pics of the install on his bike on the Bellisimoto website. Doesn't look like those mounting holes are for a piggyback gauge-mount; looks like he has special triples or drilled & tapped holes specifically for the bracket mount.  And how much did the bracket cost out of curiosity?

[Slide Panda]

Mash mad an adapter plate - I've got that bike now. He made it out of a bit of plate - it's a 1 off.

[Speeddog]

How is that bracket going to mount to the triple? I saw Mash's pics of the install on his bike on the Bellisimoto website. Doesn't look like those mounting holes are for a piggyback gauge-mount; looks like he has special triples or drilled & tapped holes specifically for the bracket mount.  And how much did the bracket cost out of curiosity?

S4 has top-mounted clip-ons, that bracket picks up the inner 2 bolts.

Tonkoshala, there is a double ended fastener used on  injected 2-valvers, 6mm and 8mm, used on the intake valve cover of the vertical cylinder, for attaching the battery bracket.

One of those may do the job.