O. S. SPEED B21 Ronda Drake Pink Edition

In addition to the O. S. SPEED B21 Adam Drake edition 2, we are proudly releasing O. S. SPEED B21 Ronda Drake edition featuring a pink cooling head and pink carburetor restrictors, Which are her image color. Ronda Drake is the wife of Adam Drake, and she is therefore a racer. Now we have two different colors in the same specifications; bore x stroke 16.4 x 16.55mm, the double-counterweight crankshaft embedded with DLC hard coating, a ceramic ball bearing rear, of o-ringed inner head, and an easy adjustable ball link.


Spec .---------------------------


Displacement: 3.49cc / 0213 cubic inches


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 r.p.m.Range: 4.000 to 42.000 r.p.m.


Weight: 362g / 12.77oz