I purchased Jones 710 for my Pugsley and I tried to get by using two sets of old race face grips I had laying around. They worked ok but these fit great and are very comfortable. Should've bought them the same day as the bars. Can't say how durable they are but I'm sure they'll last a few years of almost everyday use. Also chunky vs extra chunky.. I have medium sized hands and these feel fine to me. Good luck!!