Broken bolt HELP!

[GSXReater]

I was changing the disks on my front wheel and one of the bolts holding the disk snapped.

I cant use a stud extractor as there isnt any bit of the bolt sticking out.

What can i do to get the broken bolt out without damaging the thread so i can just put a new bolt in once I get the broken one out?

Thanks.

[Syx]

My advice would be to carefully drill the bolt out. Start with a small drill bit and work up; hopefully you'll find that with the centre part removed the bolt gives in and becomes movable again.
Worked for me when I had a bolt jammed into a fairing mount point - just take it slowly!

[Raffles]

Make sure that you use cobalt drill bits. HSS type bits are a waste of time for a job like this.
I was recently introduced to cobalt type drill bits by StirlingGaz and they have changed my life for the better.
____________________
A good loser will always be a loser.

[stirlinggaz]

Hi,
i dont know what size the bolt is, but i usually use a 3mm cobalt drill bit to start with, & drill a hole straight through the middle of the bolt.
use plenty of cutting oil, keep the drill bit cool & drill slowly, keeping the drill as straight as possible.
then just keep drilling through the bolt with bigger drill bits, until the remaining thin threaded part spins with the drill.
you might get away with only needing the 1 cobalt drill bit, & continuing with a set of the cheaper titanium bits.(ie drill the initial hole with 3mm cobalt drill bit, then 4mm titanium bit, then 5mm titanium bit & so on)
you shouldnt need to cut new threads & can just replace the bolt with one of the same size/thread.
if you damage the threads, just tap out to the next size.
cheers,
GAZ

[Ed Case]

Be very wary of 'Easy-Outs', they can snap very easily and then you'll be in even deeper poo than you are now. I've been there, done that, and it ain't funny !.
Best of luck, Ed.