Guys
I've read bits and pieces about the 412 series on here, thought i might just putr my comments out there for others looking to try them out. I swapped my stock springs on my 09 Nightster about 2 months ago for the 11" HD 412 series Progressive springs.
Few differences i noticed good and not to bad:
- Bumpier roads seem to handle alot smoother - Hard bumps or sudden bumps are alot more jerky on the bike - The nightster is noticably moore comfortable to sit on - With the lowering of the back the bike looks like it should
I would be interested to see if anyone else out there has any other feed back on them and what they think
Cheers Luke
Pic of mine below
I had the 412's on my dyna, and rode 2 up a couple of times with the missus (about 70kg) wound up the preload 2 clicks and it was fine.
Just remember to wind them back down again for solo or it's a pretty harsh ride.