The O.S. Engines Speed B2105 Ongaro V3 Engine is a championship-grade RC engine specifically designed to deliver precision, power, and performance. Whether you're competing or enjoying high-speed runs, the B2105 Ongaro W.C. Edition offers unrivalled reliability and innovation for the RC enthusiast. 
 
The engine is based on the highly respected O.S. SPEED B2105, featuring a striking black and gold double-anodised outer head. This exclusive look, requested by Davide Ongaro, oozes premium craftsmanship and racing heritage. The laser-etched "V3" logo represents a refined update from the previous World Championship editions. The crankcase is adorned with shiny laser-engraved “O.S. SPEED” and “B21” logos on both sides. This special edition also features the same φ6.5II carburettor reducer used by Ongaro during his World Championship victory. Its design optimises airflow, fuel delivery, and overall efficiency, ensuring you experience top-tier performance. Adding a touch of luxury and durability, the carburettor reducer and O.S. Speed T-P3 gold plug are plated in 24-karat gold. From its precision-engineered internals to its stunning aesthetics and gold-plated components, this engine is designed to dominate the track and leave a lasting impression.
Designed for demanding RC racing environments, the B2105 features an anodised cooling head that ensures optimal thermal management, even during extended high-performance use. This allows for better durability and consistent performance when you push your RC vehicle to its limits.
Whether you’re an RC professional or a passionate hobbyist, this O.S. Speed B2105 engine brings world-class innovation straight to your 1/8 scale off-road buggy. 
 
Features:
Includes a TB02 EFRA2089 (T-2090SC) and MB01-75 (M2000SC)
Special commemorative design
Crankcase with iconic laser engraving
Precision carburettor for maximum performance
24K gold-plated components
Enhanced cooling & durability
 
Specifications:
Displacement: 3.49 cc / 0.213cu.in.
Bore: 16.27mm / 0.641 in.
Stroke: 16.80mm / 0.661 in.
Output: 2.68 ps / 2.64 hp / 34,000 r.p.m.
Practical rpm range: 4,000-42,000 r.p.m.
Engine Weight: 348g / 12.28 oz.