Material: Carbon Steel
Total Length: Approx. 140.5mm / 55.3inch
Width: Approx. 47mm / 18.5inch
A worn chain shifts poorly and wears sprockets at an accelerated rate.
0.75% and 1%, the points at which chain experts suggest replacement.
Compatible with all chains.
Easy to use.
1 Piece Chain Checker
Product chain size:
.75 means that the chain is stretched 0.75mm for every 11 knots.
1.0 means that the chain is stretched by 1mm every 11 knots.
Very simple to use and accurate. I had a worn out chain, and replaced it. Bicycle (Giant Sedona 3X7 gears) shifts much better with a new chain.
The chain stretch tool looks good and the guides are marked and was used to confirm state of chain.
Pretty simple gadget, not much to go wrong. It's metal, sturdy.
Does what is it supposed to do.
I did not need this tool to tell me if my chain is worn out.
These people also make bike chains. Strong bike chains. Anyone that's put a few miles on an e-bike knows how critical chain awareness is. This is a great tool that is accurate.
Product probably works fine but the item description is poor. This product WILL NOT work with 11 and 12 speed road bike chains which is not mentioned in the description.
This tool is smaller than others around.
Excellent, great quality