Rear Brake Disc Worn Out at 46,000 Miles

[Jinxit]

I did wonder i always thought that EBC were the best replacement discs.


Not sure why people have had problems with the standard disc though. My bike has now covered 31000 miles on the original disc! Its just getting to the 4.5mm now. Original pads lasted 13000 miles and steptoes replacements are still good at 31K. Bike has servo ABS as well.

Thanks for that.

 

[Slowdown]

Disc replacement is rife and the bane of our life!

It is normal to replace discs on cars at anything from 5k and very few manufacturers do it on warranty, except Toyota. Salt is the number one degrader of discs. Very very few cars make it to MOT on the original ones.

Ian

Utter tosh! My Polo lasted 10 years and 60000 miles on the original disks. 2 Merc 'A' classes and it's the same - 40-50000 miles and no disk replacements.

07 non servo 1200GSA. rear disc 0.1mm away from minimum (4.5) at 13.5K.

fronts: unmarked.

even without servos, an abs equipped bike hammers the rear brakes on as and when the ecu sees fit, hence the ridiculous wear rates of pads and discs. it's a rubbish system!

Not so sure either. 12000 miles and the rear pad is half worn. The disk is virtuall unworn.

Methinks it's all down to the style of riding.

 

[Brian ROSEN]

"...Methinks it's all down to the style of riding....." I have to say that I have never had to change a disc on a car nor a bike - and some have done pretty high mileages; I wonder if it is wear or corrosion from the anti-ice products used on the roads? (I did have a Citroen BX that failed its MOT because the rear discs were rusty - but a few minutes work with 'wet & dry' emery and they were OK. )

 

[cookie]

"...Methinks it's all down to the style of riding....."

Methinks it's all down to the style of riding.

so perhaps you could explain how my "style of riding" causes excess wear, despite:

1) no longer using the back brake pedal, as the handlebar lever supplies braking to the rear automatically (too much IMO).

2) never having had a disc, front or rear replaced before in 36 years riding bikes.

 

[Brian ROSEN]

Not what I wrote

No, Cookie, I was only quoting (and querying what was written by someone else) this is what I said : ...".Endless discussion -Petrol consumption, tyre wear, brake pads, discs, clutches etc;etc; There always seem to be huge variations depending on the rider, roads, load carried, weather etc; etc;" so take your pick. However I would suggest a close examination of the rear calipers/pads might reveal that the pistons are sticking.

 

[cookie]

However I would suggest a close examination of the rear calipers/pads might reveal that the pistons are sticking.

by coincidence, i had the caliper off yesterday to check the pads. pistons moving freely.

 

[TrickyWoo]

I had a rear puncture last week (1st ever on a bike in 20 years) and the guy checked the pads - they were utterly finished after 2,500 miles! WTF is that about? I too never use the back brake, simply using the front all the time so the linking (2005 ABS Servo) does the rest. The back brake is totally useless anyway even with the new pads. I use the bike for a 60 mile round trip to the City daily and have done a couple of thousand in France / Wales but that's it.

The bike's in for a 12,000 mile service (actually 13,400) this week and I suppose I can look forward to a new rear disk then. How much will that cost?

 

[Brian ROSEN]

"...the pads - they were utterly finished after 2,500 miles! ...." So what did the mechanic say? It would be very difficult to wear out a set of pads in that time without your discs glowing red hot!

 

[cookie]

"...the pads - they were utterly finished after 2,500 miles! ...." So what did the mechanic say? It would be very difficult to wear out a set of pads in that time without your discs glowing red hot!

2500? luxury!

mine were toast at 1900. dealer said it wasn't that unusual with the original "organic" (made of weetabix i reckon) pads

 

[Johnny Davies]

Disc wear

40+K on your discs - now thats impressive. Managed to get 28k out of mine before they were shot.

Brake life seems to be (amougst other things) a real pain in the arse....

 

[ballistic]

My original rear disc lasted 15000 miles. It was replaced FOC as a goodwill gesture by BMW (GB) but their attitude is that anything over 10000 miles is fair wear and tear, which is nonsense! The rear disc on my 1150 was replaced at 40000 miles, which given the amount of riding in London traffic it had to put up with was much more like it.

Glad to hear that Bob. My rear disc is warped, not worn, after 14,000 miles/14 months.
I took it to the dealer today and he said exactly what you said... over 10,000 miles and it's regarded as "fair wear and tear". He's going to contact BMW on Monday and try and get it replaced "as a goodwill gesture"... I was feeling a bit down tonight, but your experience gives me hope