FD going cheap...

[Demongroover]

Hi what year 1200GS are you bolting the R1200R diff onto ,intergrated abs or the newer system?

It's a R1200GS 2004.

The diff is R1200R 2010.

Apparently, although the part IS different it is displayed on their system as the same part.
On investigation, it was updated in 2007.
The R1200R rear ABS sensor is £37 incl VAT.
I've ordered one for Saturday, so should be mobile soon.

Fingers crossed (again)!

 

[xjrjason]

Well done that man for taking the plunge!


I have an FD on it's way as well now, handy stock item.

I'll have to order up a sensor, before I forget it needs to be changed.

 

[Demongroover]

Right, now I'm p*ssed off!

I've fitted the R1200R final drive to the 1200GS. I've replaced the ABS sensor as the original was to small. It plugs straight in, everything seems spot on, great... test ride.
The drive works ok as far as I can see but... no ABS (getting that Brake Failure message on the dash) and no speedo. Arse!
I can't see what is wrong. The ABS sensor is only a pick-up, there is only one way to fit it, you cannot adjust the gap betwwen sensor and the drive plate in the FD. The plug is the same. I've checked for damage on the wire. I'm stumped!
Help from those in the know appreciated.

 

[george81]

Right, now I'm p*ssed off!

I've fitted the R1200R final drive to the 1200GS. I've replaced the ABS sensor as the original was to small. It plugs straight in, everything seems spot on, great... test ride.
The drive works ok as far as I can see but... no ABS (getting that Brake Failure message on the dash) and no speedo. Arse!
I can't see what is wrong. The ABS sensor is only a pick-up, there is only one way to fit it, you cannot adjust the gap betwwen sensor and the drive plate in the FD. The plug is the same. I've checked for damage on the wire. I'm stumped!
Help from those in the know appreciated.

i am afraid its not going to work. the reason for this is the abs ring that is build in the back of the crown wheel.
1200΄s that are made until August 2006 have the abs servo unit and the abs sensor rings are different from yours.
if you watch a non servo bike (8/2006 anwards) at the front wheel you will see that the abs ring has differenet gups from yours. the same is at the final drive in the back of crown wheel. the result is that sensor cannot read the gups so you have not got abs and tacho reading.

 

[Demongroover]

i am afraid its not going to work. the reason for this is the abs ring that is build in the back of the crown wheel.
1200΄s that are made until August 2006 have the abs servo unit and the abs sensor rings are different from yours.
if you watch a non servo bike (8/2006 anwards) at the front wheel you will see that the abs ring has differenet gups from yours. the same is at the final drive in the back of crown wheel. the result is that sensor cannot read the gups so you have not got abs and tacho reading.

Bollocks, well that's £192 wasted then. Back to plan A. Fix original final drive and sell the f**kin' thing quick before anything else goes wrong.
Triumph here I come.

 

[BlueBird]

A THOUGHT

if it is as explained above what you need is some electronics wizard to convert the pulses at the rear into the correct pulses for the year of bike.

It must be known what the values are off the 2010 FD and the 2004 FD and its needs something to (resistor/Booster?) to produce the corect reading.

Im not anyway into electronics so this maybe a load of shite I am talking

 

[xjrjason]

Mines an '08

Just checked the sensor part numbers for the GSA and R, they are the same for an '06 to '09 GSA and '10 R.

So you should still get your money back from some one with a later GSA, trust me they'll be a few around wanting FD's.

 

[Demongroover]

Mines an '08

Just checked the sensor part numbers for the GSA and R, they are the same for an '06 to '09 GSA and '10 R.

So you should still get your money back from some one with a later GSA, trust me they'll be a few around wanting FD's.

Indeed.
As soon as I get the original 2004 GS FD back, I'll fit it and sell this one and the ABS sensor on.

Tough decisions to be made now.
I am totally p**sed off with the GS and the time off the road (two months now) and lots of recent expenses, so thinking of selling it and buying a Triumph Sprint GT instead, but will have to sell my Harley (customised by me) to afford it, but I want the Harley and not the BMW, but can't run the Harley all year. Arse, decisions decisions.

 

[xjrjason]

The GS is an awesome bike.

You'll miss it, but then again I do understand 'the falling out of love with it'

I was nearly there myself, the extra FD (handy garage stock item, and I paid more for mine than you did!) was the safety net, as it were. I'm going to hang on to mine as it probably the best all round bike I have ever ridden.

Fix yours, run it till the new year, the weather will turn soon-ish and you'll be glad of the big screen/heated grips etc.


The trumpet sprint is a great bike, but won't be a sure footed as the GS.


You need beer

 

[Demongroover]

You need beer

Indeed I do, my heads a shed!

 

[Demongroover]

RGM say recalibration is not an option, not something theyve ever tried.
Pidcocks at Long Eaton have no idea and I have requested they contact BMW UK Technical.

 

[Beemerman59]

I have been trying to understand this thread fully but have got confused. However, if anyone is saying they have a newish FD that will fit as OEM fitment to my '08 1200GSA then I would be up for buying it.

 

[Nick900]

Hello,

I hope this post will be welcomed even though I don't own a GS? I have a 2006RT with servo brakes and after reading through what seemed reams of information decided to also buy one of these final drives with disc and swingarm included.

If I am interpreting this thread correctly a FD from a bike without servo brakes is not interchangable with one with servo brakes, if you want the speedo and ABS to still work?

So does the FD I have stored away have no use other than paper weight to me?

Thanks in advance

Nick

 

[xjrjason]

Hello,

I hope this post will be welcomed even though I don't own a GS? I have a 2006RT with servo brakes and after reading through what seemed reams of information decided to also buy one of these final drives with disc and swingarm included.

If I am interpreting this thread correctly a FD from a bike without servo brakes is not interchangable with one with servo brakes, if you want the speedo and ABS to still work?

So does the FD I have stored away have no use other than paper weight to me?

Thanks in advance

Nick

I've just had a look at the part numbers for the FD on an '06 RT and 2010 12R.

If your bike is an 08 (Aug) '06 or older, then the part numbers are the same. If it a pre 08 (Aug) '06 bike then the part numbers are different.

The speed sensor that is in the 2010 12R should have a part number of:

34527677824 WHEELSPEED SENSOR

So I guess give your BMW dealer the chassis number on your bike and ask them what part number the speed sensor is.

Fingers crossed, or you may need to buy a bigger desk.

 

[Nick900]

Thanks for the quick reply. Are you stating if its an 08 [Aug] or newer then the part numbers are the same? but for pre 08[Aug] they are not? I also thought from the earlier posts the issue comes down to the ABS ring in the front wheel and crown being different?

You might be right about that desk!

Cheers

Nick

 

[Demongroover]

Well that's it.
The verdict is the FD is scrap.
Roy at RGM has stripped and assessed it and to repair would cost as much as a new one! Something has come adrift and got lunched in the bevel teeth. One of the bearings has spun it's outer race in the casing, writing the casing off. Plus the crown and pinnion bearings were fecked too!.
Options now are: new or second hand, if I can find one.
So dissappointed in this bike it's untrue.
All the farkles and man hours I've invested is for nothing now. B*ll*cks!

 

[xjrjason]

Thanks for the quick reply. Are you stating if its an 08 [Aug] or newer then the part numbers are the same? but for pre 08[Aug] they are not? I also thought from the earlier posts the issue comes down to the ABS ring in the front wheel and crown being different?

You might be right about that desk!

Cheers

Nick

If your bike was built after Aug 2006, then the speed sensor in the rear FD housing has the same part number.

Hopefully meaning that it's the same speed sensor etc etc. Working on that theory, it should work your dash/ABS etc.


I'm now BMW experty type of guy, but if the part number on one is the same as on the other, then they gotta be the same type/size/colour/dinkle dankle dong. and would do the same job as the last unit.



Thats the way I hope it works.


So now you need to find out the part number of 'your' speed sensor in the FD housing.

 

[Merv]

good info here
http://www.mattmccabe.com/r1200gs/r1200gsfinaldrive/

 

[Merv]

been reading this with much interest,have to wait for two weeks til i get home to see if the spare final drive i have in the garage for my mar 07 gsa[no abs] will do the job or not,far as i remember the last 2 digits on my spare are 44,dont know whats on the bike,thought they were all the same

 

[Nick900]

I've just had a look at the part numbers for the FD on an '06 RT and 2010 12R.

If your bike is an 08 (Aug) '06 or older, then the part numbers are the same. If it a pre 08 (Aug) '06 bike then the part numbers are different.

The speed sensor that is in the 2010 12R should have a part number of:

34527677824 WHEELSPEED SENSOR

So I guess give your BMW dealer the chassis number on your bike and ask them what part number the speed sensor is.

Fingers crossed, or you may need to buy a bigger desk.

I have done some checking not through the dealer but checking BMW parts. According to the list the Speed sensor on my bike and those manufactured from 2005 is 34517666436. Can anyone provide me with a definite answer if using the R1200R final drive will work or not? My 2006 RT does have servo brakes.

Thanks in Advance

Nick