First impressions--New Wilbers - BMW Luxury Touring Community
 
LinkBack Thread Tools Display Modes
post #1 of 9 Old Dec 27th, 2006, 5:16 pm Thread Starter
Senior Member
 
bmwrubbercow's Avatar
 
Join Date: Jan 2006
Location: Birmingham, Alabama, USA
Posts: 180
First impressions--New Wilbers

New Wilbers installed during last minute warranty work last week. Klaus and company did setup based on data I supplied, etc.

Overall they are superb! Felt a little soft on the way home from Atlanta. More air in tires (back up to 43ft 48r) and a few more turns on the rear compression dampener and I really liked the feel.

Except for one thing ----and that is the question in this post.

When hard over in a curve (and pushing it too frankly) The front tire did not feel completely solid as it lead into the curve. It felt something like it wanted to feather a little causing the handlebars to want to wobble a little. Not a solid feeling! .

Before installing the new shocks, I did not feel this new front end sensation.

Could this be in my setup?

I have the front rebound dampening as per Klaus indicated and I assume the rear rebound dampening is also as setup per him as the tech who installed said he did not change anything from the factory setup. I cannot check without removing rear plastic to access the shock and have not had time to do so yet. I did stiffen the rear compression dampening several additional clockwise turns beyond the tech's original setup as it felt soft and mushey to me and I do like something of a stiff ride as my other bikes seem to like this when in the twisties.

Could this be that I am simply not yet used to the new shocks?

Could this be an indication my factory steering dampener should also have been replaced along with the front shock? Is this stock steering dampener adjustable--I think it is not.......I simply did not feel this with the stock shocks, but then the stock shocks would not allow me to ride the LT this agressively before. Frankly I have seen LT's ridden far more agressively than I am capable of anyway, so I do not for a moment think I am pressing the bike's limits!

Possible bad assembly when putting the bike back together??

Anyone got any ideas??

Bike has 18.3K miles on it. Front and rear tires are Metz 881's with 6.3K miles on them--worn some but not worn out.

Thanks,

Tom

Tom

2003 R1150RT, Black Beauty--this is one sexy bike!
1999 R1100GSA, Does everything well, what else can one say?
1992 K75SA, If this engine had been 4-valve instead of 2, it would be the smoothest BMW ever built!
1978 R100S, my first and favorite BMW.
1976 R75/6, A 30 year old gentlemen I still love to take out for a Sunday ride.
bmwrubbercow is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old Dec 27th, 2006, 5:56 pm
Senior Member
 
Join Date: Oct 2006
Location: Savannah, GA, USA
Posts: 1,893
Could the "wobble" maybe be your steering damper? It may have been on its way out and with the new shocks you are able to feel it now.
Just a rambling thought.
Morley is offline  
post #3 of 9 Old Dec 27th, 2006, 6:54 pm
Senior Member
 
yaklt's Avatar
 
Join Date: Mar 2006
Location: Chicago, IL, USA
Posts: 141
How much more are in the front tire do you have now? That might be doing it.

Yarko
'05 Dark Gray LT

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
yaklt is offline  
 
post #4 of 9 Old Dec 27th, 2006, 9:50 pm
Senior Member
 
dmatson's Avatar
 
Join Date: Dec 2004
Location: Torrance, CA, USA
Posts: 1,680
Try going back to the setting the rear came with, just because it seemed to soft doesn't mean it is. By adjusting in some compression in the rear it could have made the front a little touchy. It doesn't hurt to try. To check the damper move your handlebars back and forth and see if you feel the drag of the damper. If you can feel the damper and it is not leaking then it's probably ok.

05' LT Dark Grey, "Battle Star"
14' KTM 1190
03' KTM 450 EXC Dually
72' Honda SL 100
67' Triumph Bonneville
65' Honda CB160
70' Honda CB350

Last edited by dmatson; Dec 28th, 2006 at 12:01 am.
dmatson is offline  
post #5 of 9 Old Dec 27th, 2006, 10:07 pm
Senior Member
 
dshealey's Avatar
 
Join Date: Apr 2002
Location: Dandridge (Near Knoxville), TN, USA
Posts: 12,165
Quote:
Originally Posted by dmatson
----------------------------To check the damper move your handlebars back and forth and see if you feel the drag of the damper. If you can feel the damper and it is not leaking then it's probably ok.
If you move the handlebars slowly, you will not feel the damper. Even if you move them fast, but a short move, you still will not feel it.

The way to see if the damper is working is to have someone sit on the back seat, or hold the rear of the bike down while it is on the centerstand. Then move the handle bars back and forth FAST. For the first couple inches of the bar tips, nothing happens, but then the damper kicks in and creates a lot of resistance to movement. You can move the bars lock to lock slowly and feel nothing.

The purpost of the damper is to be totally out of the circuit on slow wheel movements, and even very short fast movements, but it kicks in hard if the wheel moves fast beyond a few degrees.

I don't want to achieve immortality through my work...I want to achieve it through not dying.

David Shealey
Dandridge, TN
EX: '01 Black LT, BAT BYKE (Totaled at 110,000 miles)
IBA SS, BB, BBG, 10/10ths.
No bike now, but maybe in the future.
dshealey is offline  
post #6 of 9 Old Dec 27th, 2006, 11:40 pm
Senior Member
 
dmatson's Avatar
 
Join Date: Dec 2004
Location: Torrance, CA, USA
Posts: 1,680
On my 05' even when your sitting on it if you move the handlebars side to side you can feel the damper, you do have to move them quickly.

05' LT Dark Grey, "Battle Star"
14' KTM 1190
03' KTM 450 EXC Dually
72' Honda SL 100
67' Triumph Bonneville
65' Honda CB160
70' Honda CB350
dmatson is offline  
post #7 of 9 Old Dec 28th, 2006, 7:08 am
Senior Member
 
rmg08057's Avatar
 
Join Date: Jun 2002
Location: Auckland, Aotearoa, New Zealand
Posts: 1,092
I have had Wilbers front and back for 60k miles now including a rebuild and fresh or worn, they don't do what you describe (2000 model, 102k miles). I have had the bike well over at all different speeds and the only issue I have found is a general rear-end wallow in high-speed corners. The bike, irrespective of the shocks, does get more twitchy in corners approaching its upper speed limit which is to be expected.

Ralph
Located: Auckland, New Zealand...
but I left my biking heart along the Scenic Byways of America.....

"Come fill the cup that clears
Today of past regrets and future fears." ....Omar Khayyam
rmg08057 is offline  
post #8 of 9 Old Dec 28th, 2006, 6:04 pm Thread Starter
Senior Member
 
bmwrubbercow's Avatar
 
Join Date: Jan 2006
Location: Birmingham, Alabama, USA
Posts: 180
Am going to check out all suggestions this weekend. I appreciate all the advice. If that does not fix the prob. I am going to call Klaus at Wilbers and Svc Mgr at dealership next week.

Tom

Tom

2003 R1150RT, Black Beauty--this is one sexy bike!
1999 R1100GSA, Does everything well, what else can one say?
1992 K75SA, If this engine had been 4-valve instead of 2, it would be the smoothest BMW ever built!
1978 R100S, my first and favorite BMW.
1976 R75/6, A 30 year old gentlemen I still love to take out for a Sunday ride.
bmwrubbercow is offline  
post #9 of 9 Old Dec 29th, 2006, 5:09 pm Thread Starter
Senior Member
 
bmwrubbercow's Avatar
 
Join Date: Jan 2006
Location: Birmingham, Alabama, USA
Posts: 180
Thumbs up

Quote:
Originally Posted by dshealey
If you move the handlebars slowly, you will not feel the damper. Even if you move them fast, but a short move, you still will not feel it.

The way to see if the damper is working is to have someone sit on the back seat, or hold the rear of the bike down while it is on the centerstand. Then move the handle bars back and forth FAST. For the first couple inches of the bar tips, nothing happens, but then the damper kicks in and creates a lot of resistance to movement. You can move the bars lock to lock slowly and feel nothing.

The purpost of the damper is to be totally out of the circuit on slow wheel movements, and even very short fast movements, but it kicks in hard if the wheel moves fast beyond a few degrees.
Steering damper test shows resistance just as described in the above quoted text. Don't know if damper is totally correct but there is significant resistance after first inch or two of travel left or right from center. I assume it is functioning correctly.

As suggested in a previous post, I decided that perhaps I had the rear shock compression dampening set too tightly, so I backed off it counter clockwise about 4 turns, leaving about eight turns clockwise from full off still on the damper. Now I have not had the time to run the same course I ran when I encountered the initial problem (see first post this thread), but I did run a similar course today, maybe a little slower, but still a spirited run.

Most of the ten or so miles in third gear running 50 to 60 mph with some reasonably sever lean angle, though not enough to scrap anything. Bottom line, with the decreased tension of the preload adjuster, I found the bike cornered very nicely and the front wheel jitter seemed to be gone. I intend to repeat this on the original course, but I think we have solved the problem. I learned that with the Wilbers, the rear can feel a little softer than I am used to and still corner nicely. I also learned that if I over tighten the preload, the front wheel grip and solid feel is compromised.

I appreciate the input guys. I hope this post helps others learn to better adjust their shocks as I am learning.

Tom

Tom

2003 R1150RT, Black Beauty--this is one sexy bike!
1999 R1100GSA, Does everything well, what else can one say?
1992 K75SA, If this engine had been 4-valve instead of 2, it would be the smoothest BMW ever built!
1978 R100S, my first and favorite BMW.
1976 R75/6, A 30 year old gentlemen I still love to take out for a Sunday ride.
bmwrubbercow is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the BMW Luxury Touring Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Wilbers: Standard or Adjustable height bmwrubbercow Shocks and Suspension 11 Dec 7th, 2006 7:28 am
Suspension.....(again!!!....sigh) PhillWard Australia, New Zealand, and AsiaPac 26 Nov 13th, 2006 10:38 pm
Wilbers Ordering Mishap rattso K1200LT 12 May 16th, 2006 1:27 pm
Installed Wilbers Today Ranger K1200LT 3 Apr 30th, 2006 5:27 pm
Wilbers Shocks Questions rattso K1200LT 10 Apr 11th, 2006 9:08 am

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome