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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: beemrdon on June 03, 2017, 12:37:52 AM

Title: Wish I had done this a long time ago.
Post by: beemrdon on June 03, 2017, 12:37:52 AM

Today I replaced the "bobbins" on my K1100lt. I bought Grimica steel version from Motobins in England for about 1/2 the price of BMW...About $86.00 with shipping.

Now that they are on, the bike is much quieter. Its amazing how much racket the loose discs made. 
So now I want to say a few words about the installation process for those who will be doing the job in the future.

The stock bobbins are aluminum so I found that it was easiest to just cut the heads from the outside of the discs - I used a chisel but a dremel or drill would also work as well or better - and then just whack the barrels with a large screw driver and hammer before installing the new ones.
It took a couple of hours excluding going to the Home Despot for some tools. 

Some pics below...

Title: Re: Wish I had done this a long time ago.
Post by: White Dog on June 03, 2017, 10:58:41 AM

How are the new bobbins attached?

Title: Re: Wish I had done this a long time ago.
Post by: beemrdon on June 03, 2017, 11:10:39 AM

The same as the old ones, with a circlip.