Down under, an idiot and a 400F

[crazypj]

That's thickness, width would be across both flanges and will be around 3" (75~mm)
One flange could be distorted
Of course, you could have just screwed up on truing ;D

 

[neevo]

That's thickness, width would be across both flanges and will be around 3" (75~mm)
One flange could be distorted
Of course, you could have just screwed up on truing ;D

That is across both flanges, 88.8 - 89.3mm

Could me not truing it properly cause an inconsistent wobble on each flange?

 

[crazypj]

Oh, me bad :-[
Forgot you got a wider rear rim.
Yep, having spokes at different tension can cause rim flanges to wobble.
I usually start with rims like that though, never know what your getting with used stuff.
It is fixable, just takes a bit of playing with at different locations on rim to pull things into shape.
It is a lot easier with DTI, you can see how tightening one spoke moves rim a few thou

 

[neevo]

Oh lords of cafe give me your thoughts... on my lower shock mounts.

The uppermost section isn't done yet, leaving plenty of material on there so I can easily adjust the mounting position if required.

It's quite heavy duty and could probably be trimmed further, would appreciate some inputs;

Test fit on the bike. Lower loop goes round a cross brace on the upper supports, upper loop goes around swingarm brace:

Test fit with an analogue for the shock too:

 

[crazypj]

That's purty, I would mount shock closer to horizontal, gives a slightly rising rate

 

[cobraace2]

Now this is a Honda I would ride.

 

[teazer]

I, on the other hand, would take those cute plates off and weld a pair of simple brackets in line with the main brace. It's simpler lighter but only a straight (non-rising) rate that way. It simplifies the forces and eliminates a twisting force.

OR... I wonder if the shock could go vertical with a linkage below the swingarm?

There never any shortage of alternative ways to do something.

 

[crazypj]

Angled shock in line with brace may end up as a falling rate as swing arm moves through arc (and the pivot points move around)
1/4" in the right direction makes a big difference

 

[neevo]

PJ: Are you suggesting lifting the rear shock mount so the shock is more horizontal? That can be done easily, just might need to redo the mounts as the shock length is fixed (290mm eye to eye). Only thing I would need to worry about is the spring on the shock clearing the subframe tray (Hagons do have a thin profile spring luckily).

Teazer: Are you suggesting mounting the shock directly onto the brace to keep the angle the same? This might work as I think the brace still arcs upwards. I might take some pics of the brace arc to double check.

Keep the inputs coming, pro's and con's with them too if possible so I've got some background to decide around too.

 

[neevo]

Looks like the mount doesn't roll over at all if its above the brace. Brace does reverse on the last pic though:

 

[crazypj]

The last 3 pics are about right level for swing arm, I don't think it's possible to run it in the position in second pic (chain want's to be in same place as pivot shaft)

 

[neevo]

The last 3 pics are about right level for swing arm, I don't think it's possible to run it in the position in second pic (chain want's to be in same place as pivot shaft)

Yeah your right. Just took photos without thinking about that. I am going to set swingarm just lower than horizontal with shock fully extended, should give clearance and enough travel when fully compressed.

Does it make sense to get rid of the figure 8 mounts and weld a simple mount to the brace?

 

[teazer]

You want a maximum static droop angle of say 10 degrees but anywhere from zero to 10 is fine. Measure the shock without its spring to see how long it is fully extended and fully compressed.

Raise the wheel to full compressed shock position with the shock in different positions and see what angle it would be at. That will give you a pretty good idea of what will work and what will not.

 

[neevo]

You want a maximum static droop angle of say 10 degrees but anywhere from zero to 10 is fine.

I assume you mean 10 degree angle on the swingarm when the bike slightly compresses the shock under its own weight (static sag)?

 

[crazypj]

That would work but may be better to have around 10 deg unladen.
You'll have to support frame and not swing arm to get it right.
You'll have around 30 ~ 40mm when you sit on it and about 10~15mm with just weight of bike if spring rate is correct (and about 5deg droop)

 

[deepwaterimports]

all this strengthening she will be unbreakable mate awesome work

 

[neevo]

Parts arrived

Couldn't resist and had to put the bits on:

Popped the new grip on the throttle:

And wired both grips on:

Tank will have to wait till the weekend.

 

[andycafe]

Nice

 

[Hoosier Daddy]

Looking great Neevo, hard to believe it's the same bike.
I realy like the speed hole in the levers, nice detail. I'm thinking those killer headlight mounts need a few, maybe in a triangle patern.
Just a suggestion, you go Brother!

 

[neevo]

Looking great Neevo, hard to believe it's the same bike.
I realy like the speed hole in the levers, nice detail. I'm thinking those killer headlight mounts need a few, maybe in a triangle patern.
Just a suggestion, you go Brother!

The levers already come with those speed holes, thats why they are well done and look good

Good point on the headlight brackets, I'm probably going to mount the front indicators in the middle so will see how that looks then see if speed holes will improve the look.