I have a 2010 dyna super glide custom I picked up used couple weeks ago. It had 1429 miles when I brought it home. Even with only having two days to ride since got it in the upper 40's still managed to get another 300 miles on it. I had to change a couple things right of the bat. Previous owner had one of them solo thin spring seats on removed it and put a regular seat back on. Then noticed even with my just me only on it the rear bottomed out couple times and realized shocks were on extreme soft setting. I stiffened them up before I rode the other day and much better but I still have the front extremely soft. I have heard the front bottom out before just riding and hitting a bump in the road. I also can make the front almost bottom out using front brake coming to a normal stop from like 20mph down. I am not sure if he softened the front up two. I am just not sure how to stiffen it up. I searched and seen where people say make sure both sides are the same. But I am not even sure where you are talking about.
Thanks in advance.

 

First thing is to check the oil level in forks. You may also want to consider buying Progressive springs for the forks which will make a vast improvement for about $100.

 

I've heard "Viagra Oil" works well...=8^)

JK, as Racqueteer9 stated - could be fork oil level so first option would be to swap it for something a tad heavier (cheapest option). Next option is to swap front springs (investment, but worthy). Good luck & enjoy that new ride!

 

There are several possibilities. You said you heard the front bottom out and also can make the front almost bottom out. If your hearing a clunk it could be the fall away needs adjusted. Excessive dive could mean the fork oil is low (too much oil would make a stiff ride). Changing to a heavier fork oil could help firm up the ride. The stock springs are pretty dive happy

 

I was told heavier fork oil would make it stiffer. I didn't notice any difference after they installed my lowers. Unless the SE oil isn't that much thicker.

 

best option unless your handy doing things yourself, take your bike too a suspension expert, some times the best option as they have a lot better spring rates and oils too set up the forks , too your personal weight and riding style..

 

You didn't mention how much you weigh. If you're above average, the cheepest route would be to go longer on your spacer. (you can use PVC instead of the steel)

There are many other options but I would have to know how much you are willing to spend. Putting in heavier fork oil may help from it bottomong out, but to me is a poor way to cover up a problem.

 

Although changing to heavier oil is a good idea, heavier oil will not stiffen up the spring action of the forks. It will slow down the damping action, making the compression and rebound action slower. Adding to the volume of oil will stiffen up the spring action as the forks compress by reducing the air space inside the fork leg. Fill your forks per the manual, compress them and measure down to to the oil level, then add enough oil to reduce that measurement by 1/2" to 1". This does not help the too soft spring rate at the beginning of the stroke but does help as the forks compress.

 

It being a 2010 it is past time for the forks to be flushed and new oil added.
Make sure you check the sag with the new oil. Make adjustments as needed. In most cases just setting the sag will stop the bottoming out or get close to stopping it.
As cheap as the progressive springs are I would just do it all at once.

 

OK, What's "sag"?