when you order Progressive shocks, can you ask them to change the spring rate.. 120/170 because I am a big boy and am not sure what I would need?
I think the 13" would be better for me than the 12"...but I am 375lbs and usually ride solo with no trailer.
Big Rick
You order the 444 with the spring rate you want. The damper has to match the springs. I think you would need more spring than that. At least 140/200 (444-4057 at 13") what I run but it's marginal with your weight. You may bottom with those and certainly will if you have a corider. They have more 444's with even stiffer springs. You can also get too stiff - I tried the 210/250 and it was way to stiff for me at my 290 wt but might work for you with low preload setting. Look at this specs link, pay attention to the length you want and the spring rate. I didn't check to see if they have more offerings since I got mine a couple years ago.
https://www.progressivesuspension.com/assets/files/7100-105-Specs-And-Tech-Info.pdf