1981 GS450 Swingarm question

[jfsebastian]

Hi
I have a question, is it possible to mount a longer swingarm on the gs450 without any major mods? I need to get the bike a bit lower and longer on the tail for my bobber projekt. I have lowered the forks abt 1", so the total length might not differ to much. Saw a guy on youtube (bobberbob)that cut his swingarm, welded a tube outside his standard and prolonged it abt 3" or so. Looked awesome. If I donīt want to cut, is there any other models I just can use instead with the same effect? Any realistic and creative suggestions are welcome. Thanks in advance.

JF

PS. Any suggestions on other rear lowering? Donīt like cutting coils.

[Nessism]

What about relocating the rear mounting point or installing shorter shocks?

[jfsebastian]

Relocating the mounting point seems really difficult. Not much room forwards. Could use those blocks to move the lower mounting point, but they seem not to be available anymore.
Have you any pic of a moved upper mounting point?

[Nessism]

Relocating the mounting point seems really difficult. Not much room forwards. Could use those blocks to move the lower mounting point, but they seem not to be available anymore.
Have you any pic of a moved upper mounting point?

Move the rear. Fabricate the relocating blocks yourself if necessary.

[jfsebastian]

That just might be the solution. Thanks mate.
Any others that wants to pitch in this thread?

[jfsebastian]

Bump. Pls help me out here.

[jfsebastian]

Bump again.
Does anyone know if there is any longer swing arm that fits the GS450 without any major mods? A GS550 ? A newer model? Aluminium? ANYTHING???

[jfsebastian]

Anyone with a GS550 that could measure the swing arm?
Length and width please!

JF

[Suzuki_Don]

I can, but I am going out now for the night. Will do it tomorrow maybe if I can get around to it. I have the swing arm out of the bike to be powder coated so shoiuld not be too much trouble.

[jfsebastian]

Thanks Don, look forward to the answer.

[Suzuki_Don]

OK. Here it is. I was not much good at tech drawing at school so excuse my amateurish drawing effort.

The total measurement from end to end is 530mm.

The measurement from centre of swing arm spindle bolt to centre of rear axle spindle (although this is a variable as the axle can move back and forth depending on the rear chain adjustment) is 470mm.

The width of the section of swing arm that has the spindle through it and fits inside the frame is 220mm wide.

[jfsebastian]

Thanks a lot Don. Greatly appreciated.
My bike is outside now and the swing arm is mounted.
I will have it inside later this week and will remove it and measure.
It would be really sweet if it worked with a direct swap.

Don, thanks again for your effort and pics.

JF

[Suzuki_Don]

No Probs. Anytime. Thats what we are here for to help each other.
I need some help and advice on powder coating my frame and I will post that a little later on.

[jfsebastian]

Don,
I plan to treat my frame with chassie black POR-15 since I donīt have a garage to totally disassemble my bike in. This first year will be to get that bike running and in OK condition. Next will be a rebuild and some welding as well before powder coating most parts. Would be nice to have a color other than silver or black, something that pops without screaming bad taste.
Or maybe a totally black bike and have a Hemi orange tank.

JF

[Suzuki_Don]

Don,
I plan to treat my frame with chassie black POR-15 since I donīt have a garage to totally disassemble my bike in. This first year will be to get that bike running and in OK condition. Next will be a rebuild and some welding as well before powder coating most parts. Would be nice to have a color other than silver or black, something that pops without screaming bad taste.
Or maybe a totally black bike and have a Hemi orange tank.

JF

What about a hemi orange frame. and a bright yellow tank and side covers.