This knee guard from 661 lets you rage hard with plenty of protection. The abrasion-resistant technology withstands scuffs and scrapes with minimal wear. The guard is pre-curved for a superior fit. The velcro closures offer a secure fit. Be kind to your knees, you'll miss them when they're gone.
Not great for pedalling in though. Throw 'em in the back, take the shoes off, put pads on, put shoes on. Process gives a nice bit of beer time at the top of the ride, but I'd look for something else if you want to ride up in them.