TQ R/C & Hobbies

German Alpha distributors Ruddog have introduced the Alpha Dragon IV 3.5cc nitro off-road engine. The 3-port power plant features several improvements such as a new crankcase that optimises internal mixture flow between the carburettor and the liner while a rear ceramic bearing reduces friction and wear. Also new are a redesigned, balanced crankshaft as well as an updated cooling head, piston, liner and wrist pin. The engine comes pre-run-in and the first batch also includes a 4-shoe clutch assembly.