How can I fix/replace Sensor Wires of Roger Gold Exercise Bike?

Re: Roger Gold Magnetic Exercise Bike.

One of the two Sensor wires that connect from the computer screen to the handles tore (when setting up the bike) and now the computer does not work at all. This means that I cannot have any use from the bike as everything is controlled via the computer.

Does anyone know if there is any way that the wires can be fixed or replaced? What can I do about this, because at the moment the bike is rendered useless.

Any help will be greatly appreciated as I do not want £139 to go down the drain.

Thank you in anticipation.