Setting Sag -GSX-R600 part 1
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- čas přidán 7. 09. 2024
- Setting Sag on your sportbike is the first step to a safe and comfortable ride on your motorcycle. If the sag number is too small, the suspension settings or springs are too stiff for the riders weight.If the sag number is too large, the suspension settings or springs are too soft for the riders weight.
Great video even to this day just used it to set the sag on my 2002 suzuki gsxr 600 Thanks for the help!
@kfor750 As long as the tire pressure is correct, it sounds like this could be a geometry tear. Set fork compression at 1/2 a turn out and set shock compression at 2 turns out. You could also change the forks position in the triples to take weight off the front tire. The forks had soft springs in them, so this is not unusual.
Dave Moss
Host
In extreme situations we use diesel on the lock rings. First, remove the shock from the bike and then have the shock spring removed. Then soak the lock rings with diesel and they should pop apart. Once you get those free, you will need 30-35mm rider sag on the rear shock.
@AgentBetlog not quite. Use the kick stand to elevate the front and rear wheel to measure extended length. Put the bike up on stands and then sit on it and measure compressed length.
Dave
@kfor750 Glad that all worked out for you and saved the tyre while giving you an understanding of why that happened. Thanks for purchasing the DVD's - no doubt they will be very helpful to you!
Dave Moss
Host
This fucking music in the background!!!
I picked the back of the bike up to check for free sag in the rear of the bike. Then measured to the tape mark and set Dave Williams on the bike and measured again to check rear sag. The rear preload was reset so sag was set in the shock only for part 1.
Dave Moss
Host
Stiffen the rear to 25mm sag and see if the bike turns better. Then add front sag to manage braking and get the spring balance you need to manage weight transfer.
Spring tension will stay much the same irrespective of hot or cold unless the spring is "tired" and is losing its stable rate of travel.
Oil must indeed be hot to set rebound correctly front and rear to get the bike balanced.
Compression should be tested when oil is hot, all for braking and corner entrance optimization by running through different settings to get the feel you are looking for.
Dave Moss
Host
@AgentBetlog if you can, get some friends over to help. You can put the bike on the side stand and measure the extended sag that way by lifting one wheel at a time off the ground. Once you have those measurements you can have someone hold the bike and a 3rd person measure. That's the only way to get it right. You can use the stands but you will still need a second person to measure correctly.
Dave Moss
Host
@SportbikeWrench YOu are the best!!thank you very much for your reply!!!
@eugenbizzz fork oil that old will be very thick, and if the forks are cold, the rebound will be very slow as you state. If you ride the bike after 50 miles or so, the forks will pogo as the oil breaks up and gets thinner due to friction producing heat. We recommend fork oil changes every 5,000 miles ideally, and 10,000 miles is a worst case scenario. OTT offers an e-download to show you how to change fork oil for a few $'s.
Dave Moss
Host
nice how to setting sag but if you could to write the inches to mm I appreciated!!
Phillip from Greece!!
thanks for all the videos you done for our bikes!
welp, let me add, if you set the static sag, then put the rider on and check dynamic sag and its not within spec? then the bike is not spriung right for the riders weight.. just setting riders sag doesn't mean the spring(s) are the right rates.. set static sag, then check dynamic, if there are big discrepancies a suspension shop can determine what weight spring you need based on your weight and sag numbers..
you said "you don't want to make the spring too soft cause it'll just bounce" but couldn't you just set the rebound higher to compensate for the bouncy-ness?
Extra info on my question below (ran out of usable characters);
standard/stock suspension for the 07 zx6r and I'm 155 Ibs wearing full gear
I dont think the rearspring has ever been adjusted (set at 180 mm, usable range 175-185 mm )
i have a 07 gsxr 1000..the previous owner applied lowering links..however when i ride on certain roads with dividing lines between sections,the back half of the bike is bouncing like a lowrider..this is extremely annoying and unsafe..do i need a shock?or would the original suspension setup cure this problem?
Hi dave, just wanted to ask what travel distance is on front forks on the 1998 gsxr600 srad? As your video shows it for the upside down forks! Cheers oh my names dave too😆
it doesnt matter if the bike is cold when setting sag correct?... i know u want it hot when adjusting hydraulics tho but not spring tension?
@Sarksoul123456 Phillip. 1.5 to 2 inches for the front and 1.25 to 1.5 inches for the rear for standard 4.5 to 5 inches of travel. Increase the inch measurements for longer travel suspension.
Dave Moss
Host
What about a 97 gsxr 600 any tips ? Setting the sag about 35mm rear and have the front about 35mm but this feels pretty soft but doesnt really turn in that well should i go with more sag on the front or less on the rear
Dear Dave,
I'm setting sag on my 07 kawa zx6r; at this moment I have 27 mm of sag in the rear and the back of the bike feels to hard (like it's trying to plow the front into the ground)
I've tried to losen the lock-adjuster ring combination with my c-spanners but both of the rings are very rusty and stuck. A lockring tooth even got damaged when applying force (just pulling, 1 spanner on each ring) I've tried using wd-40 oil but no result.
any suggestions / experiences on this problem?
Thanks
Soak the collars in PB Blaster over night. Worse comes to worst, use a hammer and a punch to break the lock collar free. Definitely not ideal and will damage your collar slightly but it will break it free
what do you have to do if there is free sag ?
ahhh..........
SportbikeWrench
Matey's from England (^_^)