My girl and I put in the new progressive springs yesterday, Replaced the oil, and you would not believe the difference!! "WOW" The bike doesn't do a nose dive on braking and sits up firm. Handling is like night and day, and the new springs soak up the small bumps like they are not even there. It also doesn't slam over the big bumps like a dump truck. It is now surefooted around corners, stands firm on braking and is 100% better than stock. I Highly recommended for all. It was a piece of cake to do. Jack the bike until wheel is off the ground, remove the handle bars and rest them on the tank with a towel under them, loosen the top pinch bolts, remove the fork caps, pull out the 2 spacers, 2 washers, and 2 springs. We siphoned out the old oil and replaced it with new 10w after letting the jack down to compress the forks. We filled it to 4 1/8 from the top on each fork with the new oil, jacked it back up, put new springs, washers, and marked and cut the spacers about 1/4 higher than the top of the forks and put the fork caps back on, tightened the pinch bolts, and done deal. It took about 1 1/2 hours to do it all.
This is a great upgrade from stock.
Hope this helps others out should they decide to go to new springs and oil. The 10w fork oil was around 11.00 bucks, and the new Progressive fork springs were 74,00 on Amazon.