One of my bleed nipples has seized in the rear brembo brake caliper.Does anyone know the thread size.

Thanks Steve.

For a 10mm spanner size .............. M10 X 1.0

For a 8mm spanner size ................M6 X 1.0

If the bleeder is seized it will most likely tear the thread out or snap the bleeder ,

in that case you will need a " Bleeder Repair Kit " , you don't need to replace the caliper .

Good luck with that

Thanks for the reply mastersid.Good info did not know about repair kit.

Cheers Steve.