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Discussion Starter · #1 ·
My buddies 1200 had very weak front end. I found one side had oil one side was dry. (bike has been sitting two years)

My question is how much spring should stick out the top of the fork tube with forks extended on bench.??

I am sure these are stock springs, one short and one long.
They measure right at 6.4 for short and 16.02 for long. These are right on the edge for replacement. (assuming these numbers are right for the 1200.0

Here are my choices.
Use his stock springs. They stick out above the tube 3 inches.

Or use his long spring and a short spring from my 1500 rebuild. Pairing these two up they stick out 4.25 inches.

Will two properly filled shocks work fine with 3 inches of preload or should I go with the 4.25 set up.?? This 1200 will be ridden two up most of the time.. But they are not big people. It would bottom out with a good sneese before.. but leary about ending up stiff as a rock.

thanks for your input in advance.
Don
 

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Discussion Starter · #3 ·
thanks.. well air pressure is not a problem. Holds pressure fine.
I would think oil and preload do the most of the work and air fine tunes the firmness.

We are going with stock springs for now. Maybe progressives later if
buddy decides to keep the 1200.

So question remains. go with springs that rise above tubes 3 inches or
ones that rise 4.25??

don
 

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Discussion Starter · #5 ·
the actual question is what are the spring rates would determine which ones to use,if the spring rates are the same the longer spring would make a stiffer front end
Right.. I am assuming they are pretty close to the same. I know pvc spacers are used when springs are at their limits. This 1 inch longer spring has got to be better than a pvc spacer.

The thing I am struggling with.. The stock springs are right on the edge right now. (again assuming lenght numbers above are correct. and I did not get those from a manual) and yet they protrude 3 inches when relaxed.

I am inclined to think that is plenty of preload. But tell me if I am wrong.
wingryder
 
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