I've been running Amsoil in my '09 SERG, but with this glowing review, I'm getting a 5L tomorrow night at Napa on my way home from work. I'll be picking up a Harley oil filter tonight. I'm also picking up a quart of Redline Shockproof HD gear oil tonight and will be swapping out the trans oil this weekend as well as the motor oil with the new Liqui Moly. I have the primary off right now doing my 30 tooth conversion and will be putting plain HD primary oil back in the primary.
I will let you all know how the Liqui Moly works for my stock 110" motor to quiet down the sewing machine noise between 2500/3500 rpms.
Well after a lengthy amount of downtime doing a few things to the '09 SERG that included the 30 tooth drive sprocket update with the swingarm slot update, I have the bike running again.
I put in the Liqui-Moly synthetic motor oil, Redline Shockproof, Redline Primary Oil and fired it up.
The startup tick was there because of the new filter and oil change etc. But after it pumped up, the motor on idle "seemed" quieter than it used to. Also at the dreaded 2500/3500 rpm range, it seemed quieter too.
I can't say for sure, but my seat of the pants dyno says this oil pulley change combo is MUCH MORE responsive than before. I've done many hard run ups through the gears and even in the very short, 5 miles test ride, when I hit second gear hard I swear that it felt like the front wheel was getting loose.
Maybe it's the primary oil that's giving the clutch a bit more grip along with the new gearing, but this baby chits and gets like it's never done before.
Once I get out of first gear the 30 tooth should not be a factor in acceleration. I've yet to reset my TTS for the speedo error, but that will come soon.
So for right now, I'm VERY PLEASED with the Liqui-Moly and Redline Products. I didn't ride in 5th enough to notice any drop in straight cut gear noise, time will tell on that one and the Redline Shockproof.
I'm good...
I would also recommend the 30 tooth conversion to anyone riding two up. Not only two up, but parking lot 1st gear speed was reduced. Before with the clutch engaged in 1st gear in parking lots, it was way too fast and I had to slip the clutch quite a bit to keep the speeds down. This seems have improved some as well.
I bought the swingarm gusset reinforcement kit from Barefoot and the fit was great. A little welding and then grinding out the slot .200" and touch up paint, nobody would ever know it had been modified. Great investment!