Chain and sprocket.

[chaz]

I remember the good old days when a chain was joined with a split link, I also remember the bad old days when the chain snapped at the split link on my 7 month old 250cc starfire? as I was on full throttle I over revved the engine and the conrod came out through the crankcases, the only good thing was that BSA replaced the engine even though you only got 6 months guarantee, however I omited the bit about overrevving the engine, and it was a common fault on them as they had started using an alloy conrod.