OS1CH01 O.S. Speed B21 Ronda Drake Pink Edition Engine 
 
Note we hold physical stock with live stock levels unlike others 😉
 
In addition to the O.S. SPEED B21 Adam Drake edition 2, we are proudly releasing O.S. SPEED B21 Ronda Drake Pink edition featuring a pink cooling head and pink carburetor restrictors, which are my signature colors. I am Ronda Drake, the wife of Adam Drake, and yes I am also a racer. It’s a excellent choice for both buggy and truck racing as it provides a linear power band, exceptional fuel mileage and tons of overall power. Now we have two different colors in the same specifications; bore x stroke 16.4 x 16.55mm, the double-counter weight embedded crankshaft with DLC hard coating, a ceramic rear ball bearing, an o-ringed inner head, and an easy adjustable ball link.
 
Engine Features
	
Ronda and Adam Drake’s unique engine specs are not used on any other O.S. Speed engine.
	
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 6.5 and 7.0 mm 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
Specifications
	
Displacement: 0.213 cu in (3.49cc)
	
Bore: 0.646″ (16.4mm)
	
Stroke: 0.652″ (16.55mm)
	
Practical RPM: 4,000-42,000 RPM
	
Output: 2.65PS 34,000 RPM, 2.61HP @ 34,000RPM
	
Weight: (12.77oz (362g)