I have a couple of questions about my front forks. i have a pretty new giant brass1 and they see to be going bad. there is dark oil on them after i compress them. now its been there for quite a while but i wanted to now if there might be something wrong with them, like blow seals or something. also if anyone knows of a good company to get some crank bearings from, as well as a good strong crank set up for strictly dirt jumping and park/street. any advice would be appreciated. thanks.