16 replies to this topic

[JerryW]

John_Kuthe..., on 27 July 2012 - 04:56 PM, said:

On the Park Tool chain wear tool there is, and this is what Big Shark used when they guy showed me my chain stretch,which was over the threshold. I should have had him check a brand new chain on a brand new bike to check to see if the tool read 0% wear!

Even a new chain will show about .25. The pins in a chain need a little wiggle room or the chain wouldn't flex which would make changing gears difficult.

[John_Kuthe...]

JerryW, on 30 July 2012 - 02:25 PM, said:

John_Kuthe..., on 27 July 2012 - 04:56 PM, said:

On the Park Tool chain wear tool there is, and this is what Big Shark used when they guy showed me my chain stretch,which was over the threshold. I should have had him check a brand new chain on a brand new bike to check to see if the tool read 0% wear!

Even a new chain will show about .25. The pins in a chain need a little wiggle room or the chain wouldn't flex which would make changing gears difficult.

Well then they ought to de-rate the calibration by 0.25 then! This is a tool to measure wear, not new pin tolerance!

You can bet when I get one, I'll immediately check the "wear" on my NEW chain to see!

John Kuthe...