Reference Book: Star Wars Saga Edition Clone Wars Campaign Guide
The Corellian Engineering Corporation's CR-20 Troop Carrier is designed to carry a platoon of troops and their support gear to the battlefield, although it is not as well equipped to handle a hostile landing zone as LAAT/i Gunship.
The majority of the Republic's CR-20s are purchased shortly after the Battle of Geonosis from the Corellian Defense Force's surplus. They are modified to meet the Grand Army's needs, including racks upon which can be mounted a dozen BARC Speeders or 74-Z Speeder Bikes.
Corellian CR-20 Troop Transport Statistics (CL 13)
Colossal Space Transport
Ship Statistics 
Crew: 6 (Expert Crew Quality); Passengers: 40
Cargo: 15 Tons; Consumables: 2 Weeks; Carried Craft: 12 Speeder Bikes
Weapon Systems 
Attack Bonus: +10 (+5 Autofire), Damage: 6d10x5
Attack Bonus: +8 (+3 Autofire), Damage: 6d10x5