Now that I have a auto clutch in my CRF I want to remove the rear brake lever and master cylinder and put a hydraulic unit where the clutch lever was. I tried a brake system off a 2002 Artic Cat snowmobile but it wouldn't stop the bike I guess the master cylinder piston isn't large enough. I have the stainless braided line in place so I'm looking for a left hand lever operated master cylinder that uses brake fluid not mineral oil. Any ideas? I have heard that Magura makes one but have been unable to find anyone that sells it. Thanks.