Trail full suspension bikes generally have a minimum of 120mm travel and sit nicely between XC and AM bikes. They are probably one of the most popular choices today with the ever increasing amount of trail centres and dedicated forest routes. The slacker head angle lends itself perfectly to single track and descending although many bikes have the option to lower the fork travel, levelling the frame for climbing. The line between XC and trail bikes is becoming less distinct as trail bikes become faster with ever improving frame suspension.