I used hockey tape on the drop bars for my bike and I need to remove it to replace the brake levers. Over time, the tape has become melted/fused together, and I used lots of layers for extra cushioning, and I can't just peel it off. Are there any tips or tricks for removing it that don't require a Delorean to undo my bad decision to use hockey tape in the first place.
A razor blade/knife/x-acto knife should cut it. Hockey shops have special knifes for cutting through hockey tape if you want a specialized device. This shouldn't be a problem for non-carbon bars though, if you're careful.
The residue can be removed with rubbing alcohol or soapy water or mineral spirits (again, for carbon, I'm not sure what you'd do).