Another seat question

Lars · 09-23-2008, 01:03 PM

Sort of.

More specifically, about the front seat mounts on the R1100S. Mine are bent, or I assume they are. The metal rods for the bushings (see crappy annotated cell phone camera pic below) are cattywumpus (engineering term)- bent downwards. Not surprising on my salvage-titled bike, given all the other little things I've found wrong. Slowly, in fits and starts, I'm sorting out the bugs.

I assume that the steel tubes are supposed to be coaxial across the frame? What's the point of the u-shaped sheet metal pieces that overlap the tubes? They aren't welded to them- they don't seem to provide any support to the tubes. The welds look intact- any reason why I shouldn't just bend the tubes straight?

Advice, comments, thinly veiled insults all welcomed. Oh yeah, it's a 2002, so it (obviously) has the later style seat mounts.

Thanks!

Guest24 · 09-23-2008, 01:51 PM

They are bent alright, Lars. They should be perpendicular to the frame directly opposed to each other. The real question now is what about the entire frame being bent? If you have a laser you can check it out.

Lars · 09-23-2008, 02:02 PM

Quote:

Originally Posted by Nail24

They are bent alright, Lars. They should be perpendicular to the frame directly opposed to each other. The real question now is what about the entire frame being bent? If you have a laser you can check it out.

I'm sure you are right, Bubba. No question the front fairing subframe is bent. That was one of the first things I started tweaking a couple of years ago. The main frame appears to be ok, though the rear subframe tabs were broken off and welded back on- hopefully in the right place.

Now I'm wondering how badly the rear subframe is bent, besides the seat mounts.

The seller misrepresented the severity of the crash and I let myself get a case of "stark-raving-I-want-it" rather than doing some homework, in part because the price was right for a low-mile bike. Water under the bridge now- that was over 2 years ago.

Mostly, it's ok. The hardest thing is trying to figure out how things are supposed to be without another bike to compare it to. Most stuff seems to be symmetrical, but not everything.

I'm going to do some judicious persuading with large heavy instruments this evening. Also I may break out the TIG and connect the tube sections to those sheet metal tabs, just because.

wswartzwel · 03:01 PM

When your new seat arrives it will have 2 pins that need to slide into those supports...They (the frame pins that the rubber grommets are on)are hollow tubes, so dont flatten them out or weld the holes shut.