A reinforcing sleeve encloses a bendable electrode tip assembly for a catheter. The reinforcing sleeve is flexible enough to accommodate the bending movement desired for the electrode tip assembly. Still, the reinforcing sleeve provides added strength and resistance against wear and tear during repeated bending operations. The reinforcing sleeve also holds associated steering wires and electrical conducting wires in close intimate contact against the interior support wire of the electrode tip assembly. The intimate contact prevents kinking and chafing of the steering wires and electrical conducting wires during bending operations.