Motorcycle Suspension - Setting Sag





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Published on Nov 11, 2009

Dave Moss sets the sag on a 2009 Yamaha YZF-R6. Setting sag properly puts the suspension into it's optimal working range, based on a riders weight.

Comments • 135

Fuck, he had me until the last couple seconds. I don't care what it feels like on the street, I want to know the perfect settings for racing. Sure, I mostly commute and canyon ride, and I take the bike to the track rarely. But like I said, it doesn't matter to me whats best for the street, when I'm hauling ass I want my bike to be perfect. But other than that, great vid! I learned a lot.
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chris smith
Hi Dave, I'm a bit confused because when you setup the front sag to Daves weight you had to remove all the preload from the forks but in some of your other vids you say if you have to increase or reduce preload to their extremes then replacement springs are required to suit the riders weight. Please can you clarify? Cheers Chris.
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Rohan Sid
R.I.P. Tommy Aquino
Lance Moon
Hi Dave, I have a 2007 CBR600RR. I currently weigh about 205 to 210lbs with my gear on. I'm totally new to suspension set up but thought that I'd dive in last night. I was able to get my rear SAG to approximately 30mm with relative ease. However, I have found that my front forks read roughly 35mm of SAG no matter where I adjust my preload. 35mm is fine for the riding that I do, but I am really baffled how it could be that I can change my preload adjusters (15mm blue hexes on top of forks) dramatically (roughly 12 turns to full hard) one way or the other and see no actual change in the sag. Do you have any idea what could cause this? What have I missed? Thanks, Lance
stop with the back ground music
Brain LeClair
I wanna know if setting bike up that I ride is it important that i'm the one pushing down on it. He gives 30-40mm a person weighin 230lbs i imagine can push down harder that a person weighin 150lbs.
Freddy Araiza
you mention that the sag in the rear should be at 35 does that apply to a zx10r 15
Dave Moss Tuning
I have been continuing to make videos and have my own channel now Dave Moss Tuning. With a massive selection of videos, you will probably find the video content that you are looking for. If not, we can create it.
Patricia Richardson
As he said ball park figures 35 to 40mm for street riding I run 47mm as the roads here in Asia are shit If ran 35mm I have no teeth left But I started at 30mm and worked my up as standard sag was 60mm and my nose was dragging on the ground
Nacho Montamat
Hi! Are those numbers appropiate for most bikes or just the supersports? If not, then what's the recommended sag for a ninja 300 (front and rear) both for street riding as well as track riding? Thanks in advance. Great video!
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