This engine is new and will need to be broken in
This is Traxxas's TRX 2.5cc Engine with Pull-Start. This version of the engine is equipped with two different length crankshafts. 60% More Power that the TRX Pro .15 engine! ** This engine is a .15 engine. The 2.5 refers to a measurement of Cubic ** Centimeter displacement compared to Cubic Inch displacement (.15). Loaded with advanced features such and the free flowing rear exhaust, the unique composite slide carb, and innovative porting only found on the most exotic racing engines. COMMENTS: This engine shares the same mounting dimension as the O.S. .12-.15 CV Series recoil engines
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