[peterdallan]

This looks very much like a sprotor bolt has backed out and done the damage.

I had the same issue, and your photo seems to show a bolt missing from the 4 o'clock position.

I can't say for yours, but mine worked just fine once I had replaced it and locktited the bolts. I do check them before each ride, as I do with most of my bolts.

FYI I have ridden my bike with the Exile sprotor in the Swiss 500 without any issues or fading. This is a 500 mile nonstop, 3pm - 3pm check pointed event (apart from petrol and drink/snack) that takes you from lakes to 6,000 ft up mountains and hairpin roads.

Is there a bolt missing from the sprotor. As mine backed out it started rubbing and wearing the 'brake rod' ie the bit connecting the sprotor to the axle. Fortunately I caught it before it did terminal damage, though I did have to replace it.

Peter

 

[peterdallan]

I just took a look at the photos I took after I discovered mine.

Unfortunately I am abroad with just an iPad so am trying to find a way of uploading the photos so you can see where mine did the damage. It looks to me like your failed in exactly the same place as mine started to wear away and suggests a bolt backing out and causing the damage rather than a product failure.

Just my 2 cents worth based on your photos.

Peter

 

[peterdallan]

Ok found a Flickr app

You should see the photos here

Peter

http://www.flickr.com/photos/[email protected]/6160268016/in/set-72157627699410402/

 

[peterdallan]

Quote from Exilecycles.com

We are frequently asked whether oil from the chain causes a problem. Firstly, with modern 'O'-ring chains you cannot lube the joints as they are sealed. You need simply to keep the side-plates clean. Tsubaki even says you can run them dry! Fly-off from the chain is in an outward direction, so contamination only occurs during lubing, if you do lube your chain. If it does, wipe it off. Finally, if some oil makes it onto the braking surface it burns off immediately. In reality, therefore, the contamination issue does not cause a problem. The Europeans have been using Sprocket Brakes for years. We use RK heavy duty nickel-plated 'O'ring chains on our bikes; great looks, low maintenance

I have never understood why anyone would want their brakes near an oily chain. Even chain wax get flung around. I just don't get it...

Custom is cool. But only if it works at least as good as what it is replacing. I'm keeping my brake rotor, it works!