O.S. SPEED 21XZ-B TY 110% Off-Road* Disc O.S.Engine 1217D

O.S. SPEED 21XZ-B TY 110% Off-Road* Disc O.S.Engine 1217D O.S.SPEED 21XZ-B TY-110% Off-Road Engine
The O.S. Speed 21XZ-B Spec II "Ty 110%" .21 Off-Road Engine is developed in collaboration with factory driver Ty Tessmann.

Features:7mm venturi insert that boosts power while reducing fuel consumption
4mm lower cooling head lowers overall center of gravity for improved handling

Specs:Displacement: 3.49 cc
Bore: 16.3 mm
Stroke: 16.8 mm
Carb Type: O.S. 21J3 (B) slide valve with 7mm reducer
Crankshaft Threads: UNF1/4-28
Engine Weight: 353 g
Plug Type: P3 Turbo Ultra Hot Glow Plug
RPM Range: 4.000 - 42.000 RPM
Recommended Fuel: 10-30% nitro fuel
Width: 45 mm (at mounting tabs)

Included:O.S.SPEED 21ZX-B Spec II Ty Tessman 110% Engine
Turbo Plug P3
Collet
Decals
Manual