I did use Bosch (learned that here) all around with a lifetime guarantee from FCP Euro. May not make a difference....they may even fail, but I'll worry less out on long roadies with new parts than wondering if I'm going to be stuck on the side of the road out in the sticks somewhere working on it. I did save the old parts just in case of new part failure....but can't imagine just doing a roadside repair. So my happy orb is still intact.