O.S. Speed Adam Drake 3 (AD3) Engine Only (EBIS Break In) tko-bearings the new features of the

the new features of the AD3 include a boost bypass processing for the crankcase that increases throttle response

Designed and manufactured in house by Leadfinger

* Widened cab to accommodate oversized air filters * Center fin for stability * One of kind side pods direct air flow * Rear ailerons distribute and enhance downforce evenly * Rear spoiler aides mid-flight control * Window masks and official LFR stickers provided * Made in the USA by Leadfinger

5mm Carbon inserts for the D8T rear arms

Offers 6 positions 3 inside and 3 outside on top

O.S. Speed Adam Drake 3 (AD3) Engine Only (EBIS Break In) tko-bearings the new features of theO. S. SPEED and Adam Drake have collaborated once again to bring you the New Adam Drake B21(AD3) edition engine. Adam Drake is a multi 1 8th Scale ROAR National Champion who is famous for his extensive knowledge of Nitro racing engines that spans over 25 years. The O. S. Speed B21AD3 engine has several updates from champion Adam Drake. Based off the B21AD2, the new features of the AD3 include a boost bypass processing for the crankcase that increases