O.S.Speed 91HZ-R & Powertune Pipe Combo SAB Blades Proven Durable Drive Train

Proven Durable Drive Train

S110 Orange (110 mm tail blades)

Speed Tuned

Not only that but it also works with side-installed configurations and senses the crankshaft counterweight passing but the side of the crankcase

Low internal resistance

O.S.Speed 91HZ-R & Powertune Pipe Combo SAB Blades Proven Durable Drive TrainHere at BK Hobbies, we've put this combo together. This is one the most proven, reliable and powerful setups on the market. It includes an O. S. Speed 91HZ R engine and a Powertune muffler that was specifically designed to work with this engine. OS Engine Features: Lightweight, machined heat sink head Big bore carburettors best suited for the intended use (F3C or 3D) Best precision advanced exhaust cylinder timing (for F3C or 3D) Newly designed