Siezed disc screw, HELP!!!!

[Teapot]

It's probably been rounded off, as it requires a Torx Bit (a T20 size IIRC) to undo it, and not an allen key.

T30 if my memory hasn't failed.

I've also had one round off once. I just drilled the top off it with a large drill bit and removed the disk. The thread came out fine with a pair of molegrips. Then bought a new screw for reasssembly.

[Big Dave]

You are correct. It is a T30 size. Just looked in the how2 section for changing discs and pads.

E20 is the size of the bolts holding the calliper onto the hub.

[Darter]

Thanks for all the advice guys, I'll let you know which one works.

[Darter]

Hi guys.
Thanks for all the advice. I got it out fairly easy in the end. I just tapped a screwdriver into it and tapped it round with a hammer.
Big relief