Hey, I was looking at some light weight cranks but in decent strength. I have raceface atlas cranks but they aren't 83mm like I need so the setup is fairly Mcgyvered. I was looking at the fsa gravity lights but can't find anyone selling the external bb version online or in distributor catalogues for canada. I ahve also heard good and bad reviews on them. Then the funn's showed up.WEIGHT 900G ( inc. BB) is this good or? anyone with some experience on them?