Whats not to like about these little guys? They do exactly what ya want bar ends to do in a modestly light, great looking package at an amazing price. I've had these on my bike for almost 2 years now and have never had to touch them other than replace the grips that wore out behind them. Even then the set screw backed right out and the cap popped right off, a ten minute grip swap like it should be.
None! Pick your color, pop them on and never worry about your bar ends again.
Bar none, the best and only bar end I will put on my bikes