oversteer - Suzuki GSXS1000 Forum
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post #1 of 13 Old 05-02-2017, 07:08 AM Thread Starter
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oversteer

Had the gsxs f for 3weeks now, the bike is oversteering going into bends ie feels like it wants to fall over !!
Would this be down to just suspension settings or tyres as well , back tyre is pretty squared off ?
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post #2 of 13 Old 05-04-2017, 05:38 PM
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Originally Posted by cookie View Post
Had the gsxs f for 3weeks now, the bike is oversteering going into bends ie feels like it wants to fall over !!
Would this be down to just suspension settings or tyres as well , back tyre is pretty squared off ?
3 weeks tire is squared off pretty strange...when i got bike from dealed tires had 45 psi f an 50 rear and felt like it wanted to flop over...thought it felt strange but use to it...lowered pressure to 36 42 and feels heavy and thats the stock pressure takes more effort to lean it over...anyway check your pressure
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post #3 of 13 Old 05-04-2017, 07:23 PM
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Do you mean it wants to turn in too easily, ie fall over in the direction you're leaning? What was your previous bike? Probably just a different geometry you'll have to get used to. This bike is much more stable and harder to turn than say, a GSXR, but will turn much quicker than any cruiser. Mine actually was harder to turn in than my V-strom 1000 (or seemed so, maybe because V-strom bars are wider?), so I raised the forks a bit. A 55 profile rear tire will also make it turn in easier.

--Gary

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2014 V-Strom 1000
2012 DR650
2011 Burgman 400
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post #4 of 13 Old 05-04-2017, 08:05 PM
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The gsx isn't oversteering, it's just extremely agile. I think you need to calibrate your turn in technique to account for the quickness of your new bike. I speak from experience. I also have had my bike about 3 or 4 weeks. My other bike is a big heavy cruiser that I have to wrestle a bit around certain turns. I find myself sometimes turning in too much or too soon on my gixxes. It is a nimble machine and doesn't need much input to turn direction...but I am used to a bike that needed more input. I started my turn in earlier on the big cruiser too. Old habits are hard to break quickly.
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post #5 of 13 Old 05-04-2017, 08:17 PM
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A squared off rear tire, or tire worn flat in profile in the center of the tread will feel weird cornering. You have to apply more effort to your steering input to get the bike to flick into or lean into corners. This will all be resolved with a new rear tire.

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post #6 of 13 Old 05-04-2017, 08:28 PM
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You should also check your suspension sag which will affect geometry. On this bike I think the ideal total sag with rider is around 30mm (about 1-1/4"). That is from the suspension fully extended to what it is with you on it. Takes two to do this generally. You can reduce the ease of turn-in by lowering the rear relative to the front, to an extent. Like maybe 25 mm on the front and 35 mm on the rear (just for example). You don't want to veer too far from the norm or you can bottom out (or top out) the suspension travel on bumps and potholes. Also check your damping settings. A good place to start would be the stock settings, although I've got my fork compression dialed much softer to reduce harshness.

--Gary

2016 GSX-S1000F, Red/Black
2014 V-Strom 1000
2012 DR650
2011 Burgman 400
2007 Honda Helix
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post #7 of 13 Old 05-04-2017, 08:31 PM
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Originally Posted by Freebird23103 View Post
A squared off rear tire, or tire worn flat in profile in the center of the tread will feel weird cornering. You have to apply more effort to your steering input to get the bike to flick into or lean into corners. This will all be resolved with a new rear tire.
I got the impression it was more of a question could the tire be squared off, maybe manufactured that way even. Hard to imagine it would get a flat spot in only three weeks. Unless he's doing burnouts.
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--Gary

2016 GSX-S1000F, Red/Black
2014 V-Strom 1000
2012 DR650
2011 Burgman 400
2007 Honda Helix
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post #8 of 13 Old 05-04-2017, 09:11 PM
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Originally Posted by G-Dub View Post
I got the impression it was more of a question could the tire be squared off, maybe manufactured that way even. Hard to imagine it would get a flat spot in only three weeks. Unless he's doing burnouts.
My bad, I misread it as he had bought the bike used, but owned it 3 weeks. I figured he got it used cause like you say it would be hard to square one off in 3 weeks.

I guess a picture of the profile of the OP's rear tire would help steer him in the right direction lol Yes pun intended.
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post #9 of 13 Old 05-04-2017, 09:34 PM
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I looked up some of cookie's posts and saw he previously had a CB1000R, which has almost identical rake and trail to the Gixxus. So it could just be that the suspension settings are different from what he is used to.

Of course, just different tires and pressures can have a drastic effect on handling, even on the same bike. For example, I always thought my son's Gixxer was much to twitchy for my taste, but after he researched and got new tires, it was like a different bike. Turn-in was quick, but didn't feel twitchy any more. Tire pressure too low can make the handling feel mushy or sluggish, and too high would make it twitchy, per LeaveItStock above.

--Gary

2016 GSX-S1000F, Red/Black
2014 V-Strom 1000
2012 DR650
2011 Burgman 400
2007 Honda Helix
2013 DL650 - Sold
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post #10 of 13 Old 05-05-2017, 07:59 AM
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Quote:
Originally Posted by G-Dub View Post
I looked up some of cookie's posts and saw he previously had a CB1000R, which has almost identical rake and trail to the Gixxus. So it could just be that the suspension settings are different from what he is used to.

Of course, just different tires and pressures can have a drastic effect on handling, even on the same bike. For example, I always thought my son's Gixxer was much to twitchy for my taste, but after he researched and got new tires, it was like a different bike. Turn-in was quick, but didn't feel twitchy any more. Tire pressure too low can make the handling feel mushy or sluggish, and too high would make it twitchy, per LeaveItStock above.
I agree, New tires make a huge difference in how the bike feels. I believe the best advancements I have seen in the last 10 years in motorcycling have been in the tire tech industry.

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