If you went to a good auto parts store with the fittings they could make you a y fitting to split one line to the front and back but then you would be locking the rear brake as it would be getting the same line pressure as the front. You could try to switch to a very poor pad in the back to counter this. Maybe...
Or, buy another right side lever and cut most of it off to use one finger on it for the rear. I broke my left wrist once and ran my motorcycle with the front brake, clutch, and throttle all on the right for a while.
Last edited by centralks; 04-07-13 at 12:10 AM.
Reason: had a better idea