WELL I WOULD LOOK ON EBAY FOR ANOTHER TRANNY AND REPLACE THE ONE YOU BROKE.YOU CAN REPLACE IT YOURSELF AND SAVE A BUNDEL OF CASH.ANYONE WITH A LITTLE MECHANICAL SKILL CAN DO A SWAP JUST MAKE SURE YOU PUT ANY WASHERS AND BOLTS BACK WHERE THEY GO.MAKE A PARTS LIST OF WHERE THEY GO AND LABEL THEM WITH MASKING TAPE IF YOU HAVE TOO.IF YOU DO THIS THEN YOU CAN SELL THE BIKE FOR MORE MONEY AND BUY A BIGGER BIKE.