Affiliate disclosure: Firebusters may receive a commission if you purchase through links on this page, at no additional cost to you. Powered low-speed manoeuvring for compatible caravans, trailers and boats. The T-REX Striker powered jockey wheel provides 12V electric assistance for short, controlled manoeuvring of a compatible caravan, trailer, boat trailer or similar load. Its main advantage is reducing the physical effort involved in small positioning movements around suitable driveways,…