O.S. Engines 21XM - Manual (Page 20)

Displacement
Bore
Stroke
Practical R.P.M.
Power output
Weight 3.46 c.c. ( 0.211 cu.in.)
16.6 mm ( 0.654 in.)
16.0 mm ( 0.630 in.)
3,000~25,000 r.p.m.
1.3 bhp / 25,000r.p.m.
670g ( 23.6 oz.)
■
■
■
■
■
■
48.5
37.5
46
45
25
149.5
219 46
34.5
86
183
87
64 48.5 46
SPECIFICATION
THREE VIEW DRAWING
19