Weapon and Armor Proficiency: A dragonrider gains proficiency with the lance, longspear, short bow, and all simple weapons. Dragonriders are proficient with light, medium, and heavy armor and with shields.

Dragonriding (Ex): A dragonrider may add his class level as a bonus to any Ride checks made in conjunction with riding a dragon. In addition, any dragon ridden by a dragonrider enjoys maneuverability of one grade better than normal (maximum perfect maneuverability). For instance, an adult green dragon with a dragonrider astride it has average maneuverability rather than poor.

Immune to Frightful Presence (Su): While mounted on or within 10 feet of his dragon mount, a dragonrider is immune to the frightful presence of dragons.

Mounted Spellcasting (Ex): A dragonrider has a +5 bonus on Concentration checks made to cast a spell while riding a mount.

Bonus Feat: At 3rd level, a dragonrider gains a bonus feat drawn from the following list: Mounted Archery, Ride-By Attack, Spirited Charge, Trample, Weapon Focus (lance), Weapon Specialization (lance). He must meet all the prerequisites for this bonus feat.

Flyby Attack (Ex): Any dragon mount ridden by a dragonrider of at least 4th level is treated as having the Flyby Attack feat.

Spur Mount (Ex): A 5th-level dragonrider can make a DC 20 Ride check to spur his dragon mount to greater speed. Success on this check increases the dragon's speed (flying and otherwise) by 50% (round down to the nearest 5-foot increment), for 5 rounds.