The OS Speed B21 Ronda Drake Edition engine.

This is the competition nitro engine O.S. Speed B21 Ronda Drake Edition made in collaboration with Adam Drake for his wife Ronda Drake.

Following its style, it comes in a unique pink color to complement its characteristic body colors and style. It is an excellent choice for buggy and truggy races, as it provides a linear power curve, exceptional fuel efficiency, and overall high power.

With a unique semi-long stroke configuration, this engine also features a DLC crankshaft with larger dual tungsten counterweights and a unique cylinder design exclusive to Drake edition engines. These changes provide smooth power delivery at low revs and increased torque.

The B21 Ronda Drake Edition is based on the B21AD (same specifications as the AD2) and features a new pink cylinder head, a cylinder head with an O-ring to reduce vibration and keep dirt out, a new carburetor ball, and venturi of different sizes, all in pink.

Recommended upgrades for the B21 Ronda Drake Pink Edition engine:

The 2100SC exhaust and the 75mm bend are the first option for the B21RDE. (Recommended for Buggy).

The 2090SC with the 85mm elbow is also a good option for the B21RDE. (Recommended for Truggy).

Technical specifications:
Type: Nitro 3.49cc
"Bore" in English is translated as "aburrimiento". 16.4mm
Stroke: 16.55mm
2.65 ps / 2.61 hp / 34,000 R.P.M
Practical rotation speed: 4,000-42,000 rotations per minute R.P.M
Weight: 353 grams.

Include:
? Motor B21 Ronda Drake Pink Edition Engine
? Silicone exhaust collector
? Spark Plug P3 Gold
? Carburetor 21J
? Venturis of 6.5 and 7.0 mm anodized in pink.