850 PISTON RING SET +40 COMPLETE

1973 ONWARDS 828CC O.H.V 850 COMMANDO PISTON RING SET +40 COMPLETE.  MANUFACTURED IN USA.

BORE SIZE: 77MM +040 OVERSIZE
COMPRESSION RATIO: 8.5 - 1

STANDARD BORE SIZE: 3.3015" (77MM)
HEPOLITE RING PACK NO: R26730

CONTENTS
COMPRESSION RINGS X4
WIDTH: 1/16" (1.588MM)
RADIAL THICKNESS: .124" (3.140MM)

OIL RINGS X2
WIDTH: 5/32" (3.969MM)
AVERAGE PISTON GROOVE DEPTH: .183" (4.468MM)