Just finished helping The Boy fit a new chain and cassette to his hybrid. He'd been complaining the shifting was a bit rubbish, and when he (lightly) washed the bike a couple of weeks ago I measured the chain, getting 12 1/8 inches for 12 links. So, yes, the chain had worn to the "change it now" point. However when he took it off we saw this:
(Excuse the rust). Two adjacent links with cracks around the river holes. Although it's rusty, I don't think the rust is a cause here. He hasn't lost enough metal thickness to get ito breaking point. It's a SRAM PC850 chain, so not some two bob rubbish. Theories please.
(Excuse the rust). Two adjacent links with cracks around the river holes. Although it's rusty, I don't think the rust is a cause here. He hasn't lost enough metal thickness to get ito breaking point. It's a SRAM PC850 chain, so not some two bob rubbish. Theories please.