These are pretty good grips. I installed them on my Marin Bolinas Ridge 2 fairly easy. It was more difficult to take the original grips off than installing them I like the uprights as they are great when it comes to adding more power to your peddaling whether going uphill or just gaining speed I don't know if the angle isn't quite correct, but my hands still get a bit tingly when riding. Not as bad as the original grips, but they still do.













