A connecting rod small with bearing to suit the UMS 7-160cc — the seven-cylinder 160cc four-stroke radial from UMS.
On this engine the component is the small-end connecting rod assembly supplied with its bearing.
Why this part matters: replacing the small end with a fresh bearing restores the piston pin fit and removes the play that causes uneven running.
Fitting note: Measure the pin for wear before fitting a new small end.
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