#OS1CJ03 - O.S. Speed B21 Ronda Drake Edition 2 Combo
Key Specs
About this product
O.S.SPEED B21 Ronda Drake Edition 2 Combo Set
Introducing new RONDA DRAKE EDITION 2 produced by Ronda Drake, the wife of world renowned professional racer, Adam Drake. The newly designed outer head has improved performance by reducing weight and lowering the center of gravity, adopting two-color anodized aluminum with pink accents, which is her image color, based on black, and two-color printing on the graphic on outer head. Adopting a cover plate with a thrust plate to improve the durability for advantages in the races. The reducer comes standard with 6.5II (for buggy) and 7.5 (for truggy).
Specs:
Displacement: 3.49cc
Bore: 16.4mm
Stroke: 16.55mm
Output: 2.65 ps / 2.61 hp @ 34.000RPM
Practical RPM range: 4.000-42.000
Engine weight: 350g
Includes:
Reducer: 6.5II & 7.5mm)
O.S.SPEED P3 glow plug
Exhaust seal ring (1pc)
Dust cap set (3mm, 16mm, 18mm – 1pc each)
TB02 EFRA2089 (T-2090SC) + MB01-75 (M2000SC) exhaust
Frequently Asked Questions
This is designed for experienced nitro enthusiasts rather than beginners. Nitro engines require fuel mixing, tuning, and regular maintenance that demand prior RC knowledge.
The combo includes two reducers (6.5II and 7.5mm), an O.S.SPEED P3 glow plug, an exhaust seal ring, a dust cap set (3mm, 16mm, and 18mm), and a TB02 EFRA2089 exhaust with MB01-75 silencer.
The 6.5II reducer is designed for buggy setups, whilst the 7.5mm reducer is for truggy setups, allowing you to configure the car for different driving styles and terrain.
The 3.49cc nitro engine produces 2.65 ps (2.61 hp) at 34,000 RPM, with a practical operating range of 4,000–42,000 RPM.
The engine itself weighs 350g, though the full assembled car weight will be higher—exact dimensions and total weight aren't specified, so check the full manual or contact us for detailed measurements.
