RD2

Introducing the new O.S. Speed RD2 engine produced by Ronda Drake, the wife of world-renowned professional racer, Adam Drake. The O.S. Speed RD2 engine is Very PINK and unique to complement her signature colors and style. It’s an excellent choice for both buggy and truck racing as it provides a linear power band, exceptional fuel mileage and tons of overall power.

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, based on black, and two-color printing on the graphic on the outer head. Adopting a cover plate with a thrust plate to improve the durability for advantages in the races.

Featuring a unique semi-long stroke configuration, this engine also boasts a DLC crankshaft with larger double tungsten counterweights and a unique cylinder design that’s exclusive to the Drake edition engines. By adopting a boost bypass processing for the crankcase, the rotation is increased smoothly, making it even easier to handle. The inner head uses an O-ring to reduce vibration and improve dust resistance.

The Ronda Drake RD2 is based off the AD3 (Same Specs as the AD3) and features a new Pink/Black cooling head, with a pink 6.5 Venturi (Buggy) and a 7.5 Truggy) venturi. Available as Engine only or Engine Combo. We also offer (EBIS) Break in or without.

Engine Features:

Ronda and Adam Drake’s unique engine specs are not used on any other O.S. Speed engine.

The outer head adopts a new design. Lighter weight and lower center of gravity improve driving performance even in high-grip conditions.

Great for buggy and truck racing.

Redesigned cylinder liner with optimized porting.

DLC crankshaft with larger double tungsten counterweight.

Semi-long stroke configuration.

Pink anodized 6.5mm(Buggy) and 7.5mm(Truggy) carburetor reducers included.

Ceramic rear bearing.

21J carburetor.

O.S.SPEED P3 gold plug, great for medium and low speed torque performance, is also included

By adopting a boost bypass processing for the crankcase, the rotation is increased smoothly, making it even easier to handle.

By adopting a thrust plate, wear due to interference between the connecting rod and the cover plate during rotation is reduced and engine life is improved.

The inner head uses an O-ring to reduce vibration and improve dust resistance.

Engine Specs:
Same specs as the AD3
Displacement: 3.49 cc / 0.213cu.in.
Bore: 16.4mm / 0.646 in.
Stroke: 16.55mm / 0.652 in.
Output: 2.65 ps / 2.61 hp / 34,000 r.p.m.
Practical RPM range: 4,000-42,000 r.p.m.
Engine weight: 350g / 12.35 oz.

Engine Includes:
(1) Ronda Drake 2 Engine
(1) Engine to Header Gasket
(1) P3 Gold plug
(1) 21J carburetor
Dust Cap set
Pink anodized 6.5mm and 7.5 mm carburetor reducers.

RD2 Carburetor Settings

High Speed Needle: 1.30mm – 1.45mm in from flush.
Low Speed Needle: 0.45mm – 0.6mm in from flush.
Mid Speed Needle: flush to 0.15mm in from flush.

Recommended Pipe and Header for the Ronda Drake 2 engine:

TheTB02/2090SC pipe and 75mm manifold is the first-choice option for the RD2. (Recommended for Buggy.)

The TB02/2090SC with 85mm manifold is also a nice option for the RD2. (Recommended for Truggy.)

The TB03/2100SC has a smoother feel VS. the TB02/2090SC has more torque.