kart brakes

I know this probably isn't the best place to ask,but........
The master cylinder on my kart keeps breaking. It'll do a seal then
Something else will fail on it.
So I'm thinking of getting a new master cylinder. The problem is
My current setup has two cylinders. I can only find single cylinder setups on ebay. Will these do? Or do I have to buy two?
The master cylinder on my kart keeps breaking. It'll do a seal then
Something else will fail on it.
So I'm thinking of getting a new master cylinder. The problem is
My current setup has two cylinders. I can only find single cylinder setups on ebay. Will these do? Or do I have to buy two?