Just realized my chain checker was giving me bad readings for months

I've been using one of those cheap Park Tool chain checkers for about a year. Last week I measured a chain at 0.75 wear and replaced it. Took the old chain off and held it next to a new one on the bench. They were almost the same length. So I grabbed a 12 inch ruler and checked by hand. The chain was barely stretched at all. I wasted a perfectly good chain. Checked my tool against the ruler too and the tool is way off. Has anyone else had their chain checker wear down or get out of spec over time?

2 comments

2 Comments

king.aaron5d ago

Same thing happened to me with a Park Tool CC-3.2. The pins wore down and it started reading way early after about two years of regular use.

lee6275d ago

@king.aaron yeah, the pins are the weak point for sure.