Rear wheel touching flor - BMW Luxury Touring Community
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post #1 of 21 Old Jul 21st, 2015, 12:03 pm Thread Starter
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Rear wheel touching flor

Hi Guys got a question for you.
Some weeks back I changed the rear tire from ME 880 to ME 888.
On the 880 I have had allways a space between the rubber and flor of a half or more of an inch.
Now on the 888 the tire scratches on the flor when the bike is on the main stand.
I checked all the part they are relatet to that, rear chock, wheel, FD, everting seem ok.
Some of you guys using the ME 888 allready did you make the same experience? Is the 888 not only wider then also bigger in diameter?
Some ideas?
Here on the German BMW Forum nobody has an answer?


Manfred
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post #2 of 21 Old Jul 21st, 2015, 5:25 pm
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Re: Rear wheel touching flor

That is great!

More lean angle.
Now I can't wait to mount them.

Visit
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post #3 of 21 Old Jul 21st, 2015, 5:37 pm
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Re: Rear wheel touching flor

Manfred is the profile the same on the 888 ?

Pete Murray
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post #4 of 21 Old Jul 21st, 2015, 6:48 pm
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Re: Rear wheel touching flor

My 888 does not touch the floor when on the center stand (EHCS). Is your stand somehow worn?

'15 GTLE


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post #5 of 21 Old Jul 21st, 2015, 7:15 pm
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Re: Rear wheel touching flor

I think Manfred needs to tell you guys running 888's if his LT is an earlier bike with the manual center stand or the electric version. I don't know, but there may be a difference, depending on the year of the bike.... (I run Bridgestones on my '07)

Dave Beck
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post #6 of 21 Old Jul 21st, 2015, 8:00 pm
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Re: Rear wheel touching flor

Have been running the 888 on my 02 LT since last August. No issues with it hitting the floor while on center stand. Also no issue with it hitting rear swing arm either.


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post #7 of 21 Old Jul 22nd, 2015, 12:36 am
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Re: Rear wheel touching flor

I think maybe his rear shock took a dump....

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post #8 of 21 Old Jul 22nd, 2015, 3:56 am Thread Starter
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Re: Rear wheel touching flor

Ok, thanks for your input.
The Bike is a 05 US Modell, bought in Ca and shipped back to Germany after two Years of using in the US, has a EHCS and just 36k mi on the clock.
Thought my self in first position it is the rear shock that came loose. But this is ok.
I didn't see that when put the wheel on. It was running free to the floor on CS.
I think I had to lift the wheel a little to get the bolts in like I had to do that with my ME 880.
After 500 mi or so I realized that the wheel is touching the floor while on the CS.
I doubt it is a shock failure then I dont have any problem while riding. Is still damping well as it shout be also with two up. The Bike dont sink in without the CS or on the side stand also when I sit on it.
But anyhow thanks for your Input.
If you have more ideas or recommendations please let me know.
I wont be able to answer you untill week 32, I go tomorrow morning on a trip to Irland on this Bike.

Manfred
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post #9 of 21 Old Aug 15th, 2015, 6:17 am Thread Starter
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Re: Rear wheel touching flor

Ok I'm back from Irland without any problem with the Bike.
But I found out it is not the ME888 wich cause the problem with the rear wheel on the floor while the bike is on CS.
The small reservoir to adjust the load on the rear shock had some air in it or it was turned to far out. My mistake.
I didn't fill any oil just gave a little preload somewhere half way down when the bike was on the sidestand. That solv the problem up to now.
In the winter maitenance I will open this reservoir and take a look where oil was gone.
Maybe it will help you in a similare situation.

Manfred
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post #10 of 21 Old Aug 15th, 2015, 8:26 am
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Re: Rear wheel touching flor

you wont find where its gone, it just does, they all do.. it's got me stuffed as well. With the adjuster fully wound out you should feel pressure in the first couple of clicks as you screw it down, if not it requires removing and refilling as per the procedure in the tech section.

Regards Linton
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and no koalas are not Bears



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post #11 of 21 Old Aug 15th, 2015, 9:03 am
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Re: Rear wheel touching flor

Actually the preload has nothing to do with the wheel touching the ground. It only increases spring pressure on the shock. The internal rod and cushions determine how far the shock will extend. So something has gone bad in your shock if the wheel is touching the ground on the CS or you are not on flat ground.
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John
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post #12 of 21 Old Aug 15th, 2015, 1:22 pm Thread Starter
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Re: Rear wheel touching flor

I dont know John floor is straight is my garage floor.
The shock I dont know either worked well all the way on bad roads in Ireland and back.
I changed the seting of the preload only and the wheel came up.
I will check the preload oilstand in the next few days. If it change anything I will let you know Guys.

Manfred
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post #13 of 21 Old Aug 15th, 2015, 11:17 pm
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Re: Rear wheel touching flor

That is very odd because even if there was NO spring on the shock the wheel should not be low enough to touch the ground. The length of the shock is not adjustable unless the clevis on the end is stripping out.

John
2009 K1300GT Red Rocket
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2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
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Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #14 of 21 Old Aug 16th, 2015, 5:45 pm
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Re: Rear wheel touching flor

Perhaps the difference is how many KGs of luggage he has (or not) in the bags and trunk.
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post #15 of 21 Old Aug 16th, 2015, 5:58 pm
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Re: Rear wheel touching flor

I guess the other question is when the rear is touching the floor is the front up in the air? That would make sense. If that is the case then it is just a matter of loading of "stuff" on the bike. But it sounded like he had BOTH wheels on the floor at the same time on the CS.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #16 of 21 Old Aug 17th, 2015, 5:52 am Thread Starter
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Re: Rear wheel touching flor

Well,

sure was the front wheel also on the floor.

On my trip I have had luggage with me but not overloaded just for one person.

This morning I took the preload reservoir out and filled it up to the rim. Was oil missing about two tea spoon. Used normal engine oil because there is not really oil movement in this small preload cylinder.
Now I feel a good resistance when I turn the knob down to give more preload.
But it didn't change anything on the clearance from the rubber to the floor. Is still 3 - 4 mm as it was before.
There is no changing of the drive behavioure of the Bike or stampling of the rear wheel on bad roads is still running smooth also in fast twistis. So I guess the rear shock is ok.
In my mind it can be only the diameter of the Tire them self. There must be a difference between the ME 880 and the ME 888.
If I find some other points on this phenomenon in the future I will let you know.

Manfred
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post #17 of 21 Old Aug 17th, 2015, 6:04 pm
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Re: Rear wheel touching flor

I would be interested in a measurement of the circumference of the 888 tire and compare it to the old 880. They are wider, maybe they are bigger around as well.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
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Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #18 of 21 Old Aug 18th, 2015, 4:50 am Thread Starter
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Re: Rear wheel touching flor

This is right but you should do it on a new pair.
My old ME 880 is still on the rim but also already a bit down.
In two weeks I will change my rear brake rotor then I have both wheels ME 888 and ME 880 side by side I gona check it then and let you know.

Manfred
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post #19 of 21 Old Aug 18th, 2015, 9:45 am
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Re: Rear wheel touching flor

Doesn't the shock have internal end stops with rubber cushions? I've never seen the inside of one, but if the rubber cushion is somehow compressed / split, etc. it seems to me that could cause more extension of the rear unloaded suspension but not affect the damping or shock function.

Jim
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post #20 of 21 Old Aug 24th, 2015, 1:49 pm Thread Starter
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Re: Rear wheel touching flor

Ok I found the reason why the ME 888 is touching the floor.
Measured both wheels.

ME 880 has a circumsize of 2023 mm = 644 mm in diameter

ME 888 has a circumsize of 2060 mm = 656 mm in diameter

This is on the diameter 12 mm more or 6 mm on the radius by the ME888.
On the ME880 I have about 10 - 12 mm clearance to the floor and on the 888 about 3 to 6 mm.

So it is definitly the tire what cause this Problem.
Watch it if you put a me 888 on your bike check the clearance to the frame and to FD housing. To the floor is no point that will not create a problem

Manfred
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post #21 of 21 Old Aug 24th, 2015, 9:10 pm
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Re: Rear wheel touching flor

That makes me feel much better knowing that. Thanks.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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