X3B specs:
Category: 1/8 Off Road
Displacement [cm3]: 3,5
Bore: [mm]: 15,94
Stroke [mm]: 17,5
Ports [N°]: 3
Exhaust 4 booster
Head button Turbo
Crankcase Evo vacuum high pressure injected
Carburetor triple adjustment
Crankshaft Balanced DLC coated
Front and rear ceramic bearings