Front Brake Master Cylinder Upgrade

“The best thing is the Gremica set up is a way lot cheaper than the Brembo set up and works as good and it looks good as well.”

Good point. It’s the correct sizing between caliper and master cylinder that makes the difference in brake performance, not the brand.

I don’t know the piston size of masters from GP bikes, but I’d venture to say it is much larger than 11mm. If you hung that GP master on your Norton with a stock caliper you’d have a piss poor brake.

What is a diameter of Norton stock caliper though ?
I use Chinese 11 mm master with my stock Lockheed caliper and disc on a much heavier Trident and it's very effective brake.
I believe my stock caliper's diameter is 41 mm and lever travel is very short, little too short for my liking so I have to use dogleg lever on this master.