This is a rewarding trail with fantastic views and a wild feel. Because of this, it's very polarizing - you'll either love the remoteness and feel a sense of achievement for getting out here, or hate the 'trail' and me for suggesting that you should come out here, let alone with a bike.
The trail is hard work to get to, and technically challenging to get down. There are a number of sections that even very experienced mountain bikers get off and walk. Being more remote than most places in OC, you need to be prepared to deal with any emergencies yourself.
Here's a helpful description: