Will post pics in the next couple of days but just wanted to post this out there. CHECK YOUR BRAKE DISCS FOR CRACKS. Maybe this happens more often than I realize but I was pretty shocked to get home tonight after a day of full-on riding with three other inmates on local fire roads to see the state of my front brake disc. I WOULD NOT EVEN HAVE NOTICED THIS if I had not decided to flip my front tire over as I am attending a rally in a couple of weeks time and it getting low. The font disk is FULL of cracks, I mean "LOTS OF THEM". I will take pictures and post, but if you are riding tomorrow, check them both. I think I heard of this happening once over on CafeHusky where some rider had a shattered rear if I remember right. I can't remember but I think it was suggested it was not bolted on to correct torque and was suspected to be loose (I can tell you right now mine is bolted down nice and firm). When I say I was FULL ON riding today, what I mean is FULL ON, had that fucking thing shattered on me I would not be typing this. So check them in the morning OK? Pics coming. and if I didn't mention it already check yours. S1
Do you do a lot of water crossings? That can develop surface cracks if you hit the water with a hot rotor. Also, this is one more reason why bikes that are ridden hard on road tend to have larger brakes...
No other fail trend data, hard to make assumptions/ logical / practical effort to understand what's at issue here. Emotionally its understood the operators concern and warning. Post up, sounds like a one time thing at this point, which is odd because if it was OEM sourced disc (Braking, Galfer or other manufacturer), we would think that there may be a bad batch of discs, wrong temper perhaps? Need to think of specific causes, like mentioned above, red hot disc quentched in cold water river crossing for one example. The cracking is odd for these moto discs, have seen many bend and warp they are just not that hard, the newer type (not iron) will taco bend before cracking in most cases.
can you provide photos of the disk and associated cracking? Between 4 different 630s in my locale, that have a total of over 15,000 miles, there have been no rotor issues (cracking) what so ever.
My 630 has ~15k miles all on it's own, never had any kind of problem with the brakes (I switched to some EBC HH pads after a few K miles)
