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1Back to top Go down    Crosswind Stability on K 1200 GT SE on Mon Jul 16, 2018 9:38 pm

oneredball

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Hi to all. Anyone have suggestions for handling problems caused by sudden gusting crosswinds at highway speeds? 100 to 110 kph? I am finding the 1200 a hand full during these conditions and downright scary, gets my adrenaline pump going!! Tyres are around 1500 KM old pressures F 36 psi rear 40 psi. Pirelli Angel tyres.

    

2Back to top Go down    Re: Crosswind Stability on K 1200 GT SE on Mon Jul 16, 2018 9:56 pm

RicK G

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That's what happens when you ride bikes with a big side on area. Relax and let it happen and hope the cops don't see you changing lanes without indicating.


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"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats." from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

3Back to top Go down    Re: Crosswind Stability on K 1200 GT SE on Mon Jul 16, 2018 10:04 pm

oneredball

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@RicK G wrote:That's what happens when you ride bikes with a big side on area. Relax and let it happen and hope the cops don't see you changing lanes without indicating.

Thanks mate. So it's not just me! Good to hear, but not doing my heart much good.

    

4Back to top Go down    Re: Crosswind Stability on K 1200 GT SE on Mon Jul 16, 2018 11:25 pm

Two Wheels Better

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I have owned both RS & recently sold my '03 K1200GT. I find them to be quite planted over the road. A 1,555mm (nearly 62") wheelbase will do that. The sticker under the seat with recommended pressures is outdated. This series should be set to 40 psi front (38 would be a bare minimum), which reduces cupping and provides much better feedback from the Telelever. Out back you want a minimum of 42 up to and beyond 44 with pillion or for additional load, heat or speed. The spec tire should also be a GT or heavyweight version to reduce weaving at highway speeds. These pressures won't eliminate wind jams from the side on those acres of plastic, but do help.


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1987 K100RS, '93 K11/K12 hybrid 'Big Block', '09 K1300GT, '07 K1200R, '04 R1150RT, '95 R100 Mystic, '77 R75/7.
Have we accomplished half of what we dreamt we would? There may still be time.
    

5Back to top Go down    Re: Crosswind Stability on K 1200 GT SE on Tue Jul 17, 2018 12:10 am

MartinW

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Is the bike fitted with a top box? A large top box can magnify side wind problems.
Regards Martin.


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6Back to top Go down    Re: Crosswind Stability on K 1200 GT SE on Tue Jul 17, 2018 1:34 am

oneredball

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@MartinW wrote:Is the bike fitted with a top box? A large top box can magnify side wind problems.
Regards Martin.

Thanks Martin. Yes I have a top box but is quite bad with or without, Single or Rider and Passenger. Thanks.

    

7Back to top Go down    Re: Crosswind Stability on K 1200 GT SE on Tue Jul 17, 2018 1:36 am

oneredball

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@Two Wheels Better wrote:I have owned both RS & recently sold my '03 K1200GT. I find them to be quite planted over the road. A 1,555mm (nearly 62") wheelbase will do that. The sticker under the seat with recommended pressures is outdated. This series should be set to 40 psi front (38 would be a bare minimum), which reduces cupping and provides much better feedback from the Telelever. Out back you want a minimum of 42 up to and beyond 44 with pillion or for additional load, heat or speed. The spec tire should also be a GT or heavyweight version to reduce weaving at highway speeds. These pressures won't eliminate wind jams from the side on those acres of plastic, but do help.

Thanks for that pressure info , I will definitely give it a try.

    

8Back to top Go down    Re: Crosswind Stability on K 1200 GT SE on Tue Jul 17, 2018 4:06 pm

Corkboy

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I've a k1200 GT SE as well, and don't think it is any worse than the K1100 LT I had.

One possible issue is that if you are nervous of the crosswinds you may be holding the handlebars tightly, which will only exacerbate the problem. Keeping a loose hold will allow the bike to do its thing and be much more comfortable, once you trust that it isn't going to do anything odd.

Forgot to add, I run the tyres (Michelin pilot Road 4 GTs) at 2.7 bar front, 2.9 rear.


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Corkboy '87 K100RS SE (The black one - one of the two bikes I'm sorry I sold)
'87 K100RS 0140995 (Gone)
'97 K1100LT 0188024 (Gone)
'08 K1200GT Wedge - but still a K
'08 Transalp 700
    

9Back to top Go down    Re: Crosswind Stability on K 1200 GT SE on Tue Jul 17, 2018 8:25 pm

92KK 84WW Olaf

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@Corkboy wrote:I've a k1200 GT SE as well, and don't think it is any worse than the K1100 LT I had.

One possible issue is that if you are nervous of the crosswinds you may be holding the handlebars tightly, which will only exacerbate the problem. Keeping a loose hold will allow the bike to do its thing and be much more comfortable, once you trust that it isn't going to do anything odd.

Forgot to add, I run the tyres (Michelin pilot Road 4 GTs) at 2.7 bar front, 2.9 rear.

I have the aforementioned K1100LT and put 14k miles on it since it moved house. I also have over 50k miles on the K100RT.

I have no complaints and have had both with panniers and top box on out in plenty of wind and cross wind up to force 10.

Things that are essential....decent tyre pressures. I usefor solo38 front 42 rear and do find even a 1 psi variation off that makes a significant difference.

Second thing is a loose hold and let the bike go a little with the wind so it spills rather than tries to take you

Watch a plane land in a cross wind, looks like its going all over the place but pilot has full control without fighting the wind.

The bit I don't likeis being stopped in a high cross wind, worry about being blown over, but never an issue with riding.


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1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 58,645 now 83,050 miles
    

10Back to top Go down    Re: Crosswind Stability on K 1200 GT SE on Tue Jul 17, 2018 10:39 pm

oneredball

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@Corkboy wrote:I've a k1200 GT SE as well, and don't think it is any worse than the K1100 LT I had.

One possible issue is that if you are nervous of the crosswinds you may be holding the handlebars tightly, which will only exacerbate the problem. Keeping a loose hold will allow the bike to do its thing and be much more comfortable, once you trust that it isn't going to do anything odd.

Forgot to add, I run the tyres (Michelin pilot Road 4 GTs) at 2.7 bar front, 2.9 rear.

Thanks for your input!

    

11Back to top Go down    Re: Crosswind Stability on K 1200 GT SE on Wed Jul 18, 2018 8:24 am

Gaz

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If you are experiencing these difficulties along that section of newish road on the southern NSW coast, I think between Kiama and Berry then you're not alone. I only travel along it maybe 2-3 times a year but I seem to strike massive winds along there every time.

Certainly a bit of a handful regardless of which of my bikes I am riding.

Cheers


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Gaz
95 K1100LT 0232224; 90 K75 6427509; 87 R80G/S PD 6292136
    

12Back to top Go down    Crosswind stability on Wed Jul 18, 2018 11:57 am

norton71

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Gees i would be all over the place after a few drinks at 2.7 bars let alone 2.9 bars

    

13Back to top Go down    Crosswind Stability on Wed Jul 18, 2018 11:58 am

norton71

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Very Happy

    

14Back to top Go down    Re: Crosswind Stability on K 1200 GT SE on Wed Jul 18, 2018 12:48 pm

brickrider2

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The bearings in the steering head could also be a factor. Have you checked that they are adjusted properly?

    

15Back to top Go down    Re: Crosswind Stability on K 1200 GT SE on Wed Jul 18, 2018 1:38 pm

Two Wheels Better

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@brickrider2 wrote:The bearings in the steering head could also be a factor. Have you checked that they are adjusted properly?
This is a Telelever front end and as such you'll find there are no bearings in the 'steering head', but a good look at the two ball joints, just below the upper triple clamp, and at the front end of the Telelever's lower control arm might be in order. However, I have found them to be quite sturdy and reliable over the years. A significant impact, or a torn boot allowing debris to wear out the ball, is most often what causes them to fail.

realoem.com image


__________________________________________________
1987 K100RS, '93 K11/K12 hybrid 'Big Block', '09 K1300GT, '07 K1200R, '04 R1150RT, '95 R100 Mystic, '77 R75/7.
Have we accomplished half of what we dreamt we would? There may still be time.
    

16Back to top Go down    Re: Crosswind Stability on K 1200 GT SE on Sat Jul 21, 2018 6:32 pm

Crazy Frog

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Oneredball,

Please check where you post on the forum.
Your post was on the "forum functionality" forum.
The forum doesn't have crosswind. Razz
I moved it to "General discussion"

CF

    

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