Clutch Master Cylinder- 12mm

I should state now that I would like to keep the same style with mirror mount!

Also this is a brand new clutch plate - so may be a bedding down problem

Currently my master is a 12mm unit and I can see that it is possible to get a similar style in 13mm, does anyone know of any engineering company that can bore out a 12mm to 13mm?

I am making an assumption that this is a feasible operation with regards to the amount of metal available to remove.

It may be that I just need to renew the internals, but I am not getting enough “throw” on the lever to disengage the clutch nicely. I have ordered a kit to do this; so will try this first.

I have gone through clutch pushrod length and “trying” to ensure no air is present. I have also swapped to an Oberon slave from the “old” style large piston slave.

Hopefully covered all bases for any questions :slight_smile: