What front discs?

[Mr K]

Got warped discs at just over 66k on the originals on me 2004 model.

Would like to do this (ahem) economically, but also fancy wavey discs.

Been told not to go for "solid" replacements, which seem to be cheaper...

Obviously a new set of pads would be needed too.

What sayeth the Combined wisdom of 1200 owners?

 

[2 wheel humvee]

66k from a pair of discs sounds good, go with drilled OEM's again I say

 

[Buz]

Round uns would be good

 

[Schtum]

66K..!?!?!? You obviously don't use them much, Chris. Any old shite should fit the bill, in that case......

Seriously - doesn't Steptoe do ones that are a good quality / price balance...

 

[Buz]

Seriously - doesn't Steptoe do ones that are a good quality / price balance...

Heres a starting point


There again its a stopping point you're after

 

[Sgt Bilco]

I have some of steppers discs on mine and they are just the job When you get them, make sure you get a new bolt and washer kit from BMW.

 

[jez]

I have some of steppers discs on mine and they are just the job When you get them, make sure you get a new bolt and washer kit from BMW.

Same here on the 1100, good quality and a good price too

 

[Mr K]

I have some of steppers discs on mine and they are just the job When you get them, make sure you get a new bolt and washer kit from BMW.

Same here on the 1100, good quality and a good price too

Noted given that you guys do some miles

 

[Wapping]

As BMW's own did 66,000 miles (which is near enough just over three times around the world by road) I would be heading off in their direction, again.

 

[Thunder]

Give Mort a shout if you want to go wavy

 

[Bendy toy]

When the old discs are off the wheel use a dial guage to check the disc face on the hub is running true. It should be fine but even a fractio of wobble will eventually lead to the discs heating unevenly risking another warp. WHile its stripped, also check the wheel bearings are 100%. Thinking aloud, do that first and (if needed) change the wheel bearings before clocking the disc face.

 

[Mr K]

When the old discs are off the wheel use a dial guage to check the disc face on the hub is running true. It should be fine but even a fractio of wobble will eventually lead to the discs heating unevenly risking another warp. WHile its stripped, also check the wheel bearings are 100%. Thinking aloud, do that first and (if needed) change the wheel bearings before clocking the disc face.

Had new bearings last year

 

[Mr K]

Well at £204 each for OE discs my choice is made.

 

[Deleted account 211025001]

Somewhere on here I've detailed my experiences over warping discs on my '05......

Basically, original discs warped at 16,000, replaced under warranty and warped soon after, replaced with EBC which warped soon after, replaced with Steptoe discs which warped soon after.

Went back to OEM from the later model ('08 I think) with moddified bobbins and washers and 30,000 miles on we still have no problems. Cost me a small fortune to sort but got there in the end.

Sooooo, if it were me I'd bite the bullet..........oh, and you'll get a two year warranty FWIW.

Andres

 

[Mr K]

Somewhere on here I've detailed my experiences over warping discs on my '05......

Basically, original discs warped at 16,000, replaced under warranty and warped soon after, replaced with EBC which warped soon after, replaced with Steptoe discs which warped soon after.

Went back to OEM from the later model ('08 I think) with moddified bobbins and washers and 30,000 miles on we still have no problems. Cost me a small fortune to sort but got there in the end.

Sooooo, if it were me I'd bite the bullet..........oh, and you'll get a two year warranty FWIW.

Andres

Seeing as mine took longer to warp. Steptoe is getting my cash: New discs and pads for less than 1 OE disc.

 

[Bobbin-Man]

Somewhere on here I've detailed my experiences over warping discs on my '05......

Basically, original discs warped at 16,000, replaced under warranty and warped soon after, replaced with EBC which warped soon after, replaced with Steptoe discs which warped soon after.

Went back to OEM from the later model ('08 I think) with moddified bobbins and washers and 30,000 miles on we still have no problems. Cost me a small fortune to sort but got there in the end.

Sooooo, if it were me I'd bite the bullet..........oh, and you'll get a two year warranty FWIW.

Andres

Is it a different disc post'07 or is it just the mounting setup that's changed? What difference does it make ... float?

 

[ebbo]

When the old discs are off the wheel use a dial guage to check the disc face on the hub is running true. It should be fine but even a fractio of wobble will eventually lead to the discs heating unevenly risking another warp. WHile its stripped, also check the wheel bearings are 100%. Thinking aloud, do that first and (if needed) change the wheel bearings before clocking the disc face.

Somewhere on here I've detailed my experiences over warping discs on my '05......

Basically, original discs warped at 16,000, replaced under warranty and warped soon after, replaced with EBC which warped soon after, replaced with Steptoe discs which warped soon after.

Went back to OEM from the later model ('08 I think) with moddified bobbins and washers and 30,000 miles on we still have no problems. Cost me a small fortune to sort but got there in the end.

Sooooo, if it were me I'd bite the bullet..........oh, and you'll get a two year warranty FWIW.

Andres

That fits with BMW’s know issue with disc alignment due to miss machined mounting points (and it’s been going on for a very long time). That’s why they came out with the semi floating disc mod a few years back (which it sounds like you now have?). If the disc doesn’t run perfectly true to the calipers (ie wobble) or if the disc isn’t evenly and properly secured to the wheel it can cause very uneven wear to take place damhIk...

Last time I had recurring problems with discs (R100RT) I set them up with a dial gauge and shimmed under the mounting bolts with bacofoil shims, that fixed that

Over winter I’m going to fit James Sherlock’s Hekkane stainless discs at £72 each.

 

[Deleted account 211025001]

Is it a different disc post'07 or is it just the mounting setup that's changed? What difference does it make ... float?

The discs looked the same but the mounting set up had changed and there seemed more movement/float of the discs on the bobbins.

Andres

 

[Schtum]

there seemed more movement/float of the discs on the bobbins.

Which is exactly what you need with fixed 4 pot calipers. Something has to float, either the calipers or the discs, otherwise any misalignment, including that caused by thermal expansion will warp the discs in short order - in my case 3K miles on my '04 bike.

First generation Ducati Multistradas used the same Brembo discs mounted directly to the wheel and the same Brembo calipers with the same results.