solomrus wrote:

i was curious about the welds on the shock/shock linkage mounting tabs, as the welds on that gusset don't look all that sound. might just be the flat-tone of the primer that makes them look cold tho.

i'd triangulate the upper mounting crossbar to the cradle a little bit, just to get a some more structure in the back of the frame. i'd also look into some other gussets over the swingarm pivot points.

just me over thinking it tho.

--r

The primer is a bit decieving for sure. The welds are 100% penetration. I made sure of that being as they are such a critical point on the chassis. You can slack when mounting some things, but anything like this I am EXTREMELY picky about penetration and having amperage set correctly.

I do have some other gusset stuff designed that will be added, but not right yet. The other gussets add a beam on each side of the upper shock mounts up near the backbone tube, two small gussets from the backbone to the paralell tubing under the tank, one gusset across the front just near the header/head, a underbody setup to protect the oil pan/rear linkage and stiffen that area up and extra gusseting to the steering head. I have most of this cut out, but added some to the plans so I still need to do that.

Them "things" are "bungs" used to fit into the end of a "sportbike" style lift/stand to lift and hold the rear wheel off ground for whatever you have in mind. Those stand usually come in two versions...one with a "U" shaped end to fit those "things" and another end that has a "flat" angle piece to be used on square-tubed swingarms.

No wobble here. I think frame flex and steering head bearings are a big part of the issue too, perhaps more significant than flexi-swingarm. My bike is very stable at speed.

you guys can fight over the spool/slider things,all i want is the caliper and bracket off that back wheel!:woohoo:

These things? I've seen them called spools, or sliders

check wheel bearings or swingarm bearings would be my first guess. goodluck,happy wrenching!

With the new pads you just might be noticing something that's been there all along.
Perhaps the rear wheel alighnment isn't dead-on, cush damper in the rear hub has seen better days, or maybe even the swingarm bushings are worn?

I swapped in a GS1100E aluminum swingarm into by 78 KZ650C about 3 years ago. I never got a wobble in fact the bike handles better after the swap. I think it's due to the more rigid (boxed) swingarm. I have had it up to 125 MPH and it is very stable and confidence inspiring. Before the swap my bike was a handfull in the twisties now it's great.
kzrider.com/forum/viewthread.php?tid=11890

Shouldn't be a problem. It looks like you have an LTD frame there. I hacked mine off so a nice header would fit and never had a problem. The 77-78 KZ "A" series frames don't even have those. Instead they have smaller plates that weld on for the passenger pegs. Hack away!! :woohoo:

Post edited by: 79MKII, at: 2006/03/10 13:20

Snakebyte wrote:

I have two 650 swingarms, and one with bearings installed. If you need them your welcome to um just pay for shipping.

Or if one of these will fit also please let me know.