View Full Version : Rear sliding out in turns
Tue Oct 2nd, 2007, 09:49 PM
I am picking up more and more speed with each outing to pueblo. I have noticed that my rear tire will try to slide outwards in the middle of a turn. This has happened with a Michelin Power Race PR3 and now a PR5. Air pressure was 29 front and 26 rear. I have an 06 gsxr 750 that is all stock except for a few little things that do not effect handling. What do i need to do to keep this from occuring? Obviously i need to adjust the suspension, but what exactly should i do? Any help by anyone who has dealt with this would be appreciated.
Tue Oct 2nd, 2007, 10:06 PM
Pressure is to high in rear tire, start w/22psi
Tue Oct 2nd, 2007, 11:57 PM
does it do it when your tires are hot or cold?
Wed Oct 3rd, 2007, 01:15 AM
occurs when tires are hot. if it was when they were cold i think i would know the answer to why its happening :oops:. I notice it the most coming into turn 3, which is starting to look a little rough by the way. I am entering the turn on the brakes still shedding speed and once im off the brakes and give the bike some neutral throttle i can feel the ass try to come out. I know im not giving it enough throttle to gain any speed. Just enough to balance the bike out.
i would just like to know what exactly needs to be adjusted on the rear suspension. It has never been touched and i would like to know what im doing before i start turning that screw toward the S or H and if i should adjust ride height etc.
Any articles on the topic would help as well as i have not really been able to find much on google. Ive had other people tell me what i should try but its always good to get as many thoughts as possible.
Wed Oct 3rd, 2007, 02:28 AM
There are lots of reasons this could be happening. One is that turn three is off camber and starts heading downhill, so everything about the corner is trying to push you to the outside. Here are some things you might try that may or may not fix the situation.
1. Adjust your riding style slightly. That is, get all of your braking done sooner so that you can get to neutral throttle BEFORE you reach the apex of the turn so the bike is nice and balanced as your rolling thorough the turn. This may get some additional weight onto the back tire sooner so that you aren't dealing with a weight transfer issue as you come off the brakes and add throttle.
2. I wouldn't even start with the compression and rebound damping adjustments on your rear shock until you get the spring set correctly. Setting static sag, front and rear, should be the first step in setting up your bikes suspension. You can find a basic guide to this here: http://www.sportrider.com/tech/146_0006_sag/
Once you get that right it's time to start playing with the other settings. If you want some real expert help in this area drop Dave a message at www.fixmybike.com His work is excellent and well worth what he charges.
3. Tire pressure settings...I don't run Michellins, so I don't know what the recommended pressures are for your tires. Check with Vanmar to get suggested cold and hot tire pressure settings for you tires. Vanmar Racing: Denver, CO (303) 944-0333
Those are some starting points. Hope that helps
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