Progressive Springs on '09 Street Bob

[sirbOOm]

So, there are like 8 models of Progressive Springs. I'd like to lower my 2009 Street Bob from stock (whatever that is) to something lower while also improving the ride taughtness. Which Progressive springs are the ones you folks recommend. I'm 190 lbs.... usually. Occasionally I'll have a female passenger of about 120 lbs. or less depending on which girl I'm with that day.

412?
418?
422?
430?
440 IAS?
812?

I want all black ones. No chrome.

I am just lost with the differences here.

[Hawkmann]

I would suggest 12" 440's

[scol]

I'm going through that now bought the 440's standards it didn't do it for me I'm 220 lbs. I called the factory told them about my trouble, very helpful they are sending out a pair of heavy duty springs with the tool to make the change over. I suggest you call and talk to the tech there, they can advise you, no pressure. ph# 1-714 523 8700 Cal. So far I have no complaint at all about service.