New compbrake handbrake just fitted to ps13,from ears motorsport.

Mechanic fitted it and has done many before,cant get hod of him till morning.

Problem:Pressure is not great unless brake pedal is pressureised then it is serious,but main problem is brakes locked up solid when i was testing them,released the presure by losening rear bleed nipple.

Any reaons for this,could it be the wrong .625 cylender i have.

Pedal pressure is perfect.