I have been using these cables since 1998. Love them. I recently installed a set on my hard tail mtb with SRAM XO components. The design of the XO isn't standard where the grub seal would go, and Gore (owned by SRAM now) has special instructions for installing the grub seal. I didn't get those in my kit and the grub seal tore possibly comprimising the integrity of the sealed system. I called them and let them know what I had going on, and the customer service rep asked for my address. I though she was just going to send a replacement grub seal, cable, and liner. Instead they sent an entire sealed cable kit! Bravo Gore. Customer service is top notch. This is why I am brand faithful when someone takes care of me. Speedplay has had my buisness for along time for similar treatment.