O.S. Speed B21 Adam Drake Edition Nitro Engine

Just announced by O.S. Speed is the B21 Adam Drake Edition nitro engine. The new Drake engine is a .21 that was designed for both buggy and truggy racing. Here are some of its highlights- * New porting & cylinder liner * 6.5 & 8.0mm carb reducers * New bore x stroke – 16.40 x […]