Cast Wheel Conversion ....The Facts!

gabriel_gs said:
Beat me to it! Picture not showing for me either, but I remember them looking distinctly different.
Click to expand...

Just been on the blower to Tez at motorworks who got both the speedo drives out for comparison. They are identical apart from the drive ratios. The spacers are not different therefore the problem is that shown in my photobucket pics with the amount that the inner sleeve protrudes on the wheel on the speedo drive side.
 
just been doing a bit of measuring, it seems that the overall length of the steel tube which the spindle runs in is about 4 or 5mm shorter on the alloy wheel which would explain it. Is this one piece as it looks like it may be 3 pieces as you can feel and see what appear to be joints? If there are joins then I think it is just the part on the speedo side which is different and I think if I could swap this part over all would be ok.
How would I get these out?
 
The inner spacer tube fits between the bearing inners. The joints you refer to are where the bearing inner meets the spacer tube.
Therefore, the bearing inners butt against the spacer, forming a solid tube. The spacer does not protrude.

The speedo drive 'centre tube' forms an extension to this assembly, so the opposite side bearing spacer+opposite side inner bearing+spacer tube+speedo drive side bearing inner+speedo drive inner, form a solid tube when the spindle is tightened.

The GS speedo drive 'centre tube' is shorter than the one reqd.

This means that, when you tighten the assembly, the actual speedo drive body is pressing against the whole bearing (not just the inner race), because of the space caused by the shorter speedo drive centre tube, this jams up the wheel.

Whats happened to the photograph in post 123 ??? I have not removed it.
 
Den said:
The inner spacer tube fits between the bearing inners. The joints you refer to are where the bearing inner meets the spacer tube.
Therefore, the bearing inners butt against the spacer, forming a solid tube. The spacer does not protrude.

The speedo drive 'centre tube' forms an extension to this assembly, so the opposite side bearing spacer+opposite side inner bearing+spacer tube+speedo drive side bearing inner+speedo drive inner, form a solid tube when the spindle is tightened.

The GS speedo drive 'centre tube' is shorter than the one reqd.

This means that, when you tighten the assembly, the actual speedo drive body is pressing against the whole bearing (not just the inner race), because of the space caused by the shorter speedo drive centre tube, this jams up the wheel.

Whats happened to the photograph in post 123 ??? I have not removed it.
Click to expand...

On my alloy wheels both the bearing inner `spacers` finish flush with the outside faces of the bearing. On my original wheel the one on the speedo drive side is wider than the bearing race itself. This can be seen on the photobucket pics I posted earlier. It is this which makes the speedo drive work correctly on the old wheel but not on the alloy one therefore I can only assume I need to fit one of these wider bearings in the alloy. It should work fine then.
The chap I bought the alloys ffrom had got them to fit to his 1100GS but he sold the bike before he fitted them. I wonder if he may have fitted the bearings in readiness but put the weon one on the speedo side. I can`t think of any other explanation.
 
The photo you posted is normal. As far as I know, that spacer is actually the inner race of the bearing.
I dont think you can swap bearings as the outside diameter of the bearing is larger in the spoke wheel than the alloy one. Dont quote me on that one. I'm going from memory.

Mark, stop thinking so hard. Buy the speedo drive. It will solve your problem. It will also be shinier ... for a fortnight.
 
Den said:
The photo you posted is normal. As far as I know, that spacer is actually the inner race of the bearing.
I dont think you can swap bearings as the outside diameter of the bearing is larger in the spoke wheel than the alloy one. Dont quote me on that one. I'm going from memory.

Mark, stop thinking so hard. Buy the speedo drive. It will solve your problem. It will also be shinier ... for a fortnight.
Click to expand...

As I have mentioned, Tez at Motorworks says there is no difference to the spacer length on the two speedo drives. There is only a difference in the ratios.
I have bought a second hand RS speedo drive from a breaker and it bears out what Tez has said so unless somebody can catagorically state that the spacer should be longer and show me a picture I have to believe what Motorworks are telling me.
It seems obvious that it is the difference in bearing that is causing the issue and if you think the picture of my GS wheel looks normal then it MUST be the bearing that is fitted in the alloy that is incorrect.
Can anybody clarify if the bearings have different outside diameters?
 
FURFECKSSAKE!!!!!!!

THE DRIVES ARE DIFFERENT

Mark ...stop pissin around and buy the drive that I gave you the number for. I bought one. I compared the difference between the GS drive and the one I bought from Motorworks. I photographed them both together. THEY ARE DIFFERENT.
The sticky-out bit sticks out further than the GS one.

Phone up Tez from Mortorworks and tell him to go to feckin Specsavers !! or check his part numbers.

If some feckin nigger had not fecked up the forum and made the photos dissappear, you would see the difference.

Wait a minute ...... yes, Ive just turned the front wheel on my bike and it spins freely, and the speedo works What a relief !! I thought I'd been riding mine for 30000 miles with the front wheel locked. Might have explained the tyre wear.
 
Yes, I think the drive I got from the breakers as being from an 1150RS is actually from an 1100RS which has the same bearing set up as the 1100GS.
I will get the correct bit from Motorworks
 
Conlusion of my speedo drive fiasco.....
If only the photos hadn`t gone AWOL on Saturday. That pic of the two side by side clearly shows the longer inner spacer! I have now ordered the part from Motorworks. The speedo drive I got from a breakers which was supposed to be from an 1150RS was from an 1100RS and therefore wrong.
Anybody need an 1100RS speedo drive?:augie

What really messed with my head was that Tez had picked up an 1100RS part by mistake when he compared with the 1100GS part!!
 
I've just had a look at this - you may need abs rings. My 1100GS has the abs rings mounted separately to the wheel where as the alloy wheels I was looking at sandwiched them between the brake discs and the wheel. I then couldn't work out if my abs rings were cast and if the new ones were cast or not as I've read they may or may not work on each others sensors..... I gave up in then end and will look to get my spoked wheels refurbished one day.

Sent from my GT-I9300 using Tapatalk
 
Nomad biker said:
all seem out of production at the moment
Click to expand...



Yeah looks like the site's changed - they now seem to be an official BMW dealer

From memory, the Fallert fender came with spacers to move the fender closer to the wheel, so it's not like it marries up exactly to the fork brace - the point being that I reckon you could use any universal 17" fender and make it fit with a little fettling
 
Nippy Normans supply Touratech, Wunderlich, Desert Fox and many other makes of accessories.
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