Installation was completely painless and completed in under 10 minutes. All you need is a set of metric hex keys and you're in business. Like many people, my gym has been closed down due to Covid-19. "I may not have access to weights, but I still have my trusty old Trek 3500 for cardio, right?!" I said to myself with nervous laughter. well, not quite. This thing was never a great mountain bike to begin with. Rigid-framed, no suspension whatsoever. I remember it costing me a little over $200 when I bought it brand new about 15 or so years ago. But to a kid, that was a lot of money, and I loved the thing to death. It symbolized freedom, both spiritually and financially... okay maybe I'm waxing poetic here, but I loved that bike. And there it sat in front of me coated in dust, fasteners flecked with rust, grips falling apart, with tires as deflated as my enthusiasm for my lower-middle class job. It was a sad sight, but I wasn't willing to give up on an old friend. It needed and still needs a lot of work. But my first step was to replace the ratty old grips, and the Northshore grip fit the bill. I needed cushy grips to help absorb impact (see reference to lack of suspension) and these work beautifully. Actual grip is also second to none. If you're thinking about purchasing these grips, just do it. They're incredibly comfortable, and maybe they'll help breath some life back into that sad, dusty old bike sitting in your garage.