Yep, by me again Its in the Summittoppler book of MTB routes ;D
If you think the climb up to Drum is hard then the slog up to Foel Fras is an absoulute killer. There's not much of a track to Llwytmor and it that clumpy type grass And as for dropping to Llyn Anafon from Llwytmor I would imagine it would be a nightmare!! No tracks just steep clumpy grass where you would be walking not riding
If you are venturing that way be prepared for a tough one