I just put some Fizik bar tape with gel inserts underneath on one of my bikes. I was having issues with my ulnar nerve being pinched and causing numbness in my ring and pinkie fingers. I really like the Fizik tape (I just had classic cloth, bar wrap before). Not only does it absorb the vibrations from rough roads but it makes the bars feel thicker which just feels a lot better in my hands. Two weeks in and no numbness of any kind and I did about 30 miles today some of which was on some rough cobble stones.