The best tool you can ever buy

Posted Saturday 07 February, 2009 by John Prince
To alleviate poor shifting and uneven drive train wear, most manufacturers recommend chain replacement at or before 1% stretch. Now you can quickly and accurately determine the wear and stretch of any chain with the Park Tool Chain Checker. Simply insert the Chain Checker’s pins into two links, press the swing arm gauge tight, and then check the gauge window for an accurate reading.
For more information, please visit http://www.parktool.com/products/detail.asp?cat=5&item=CC-2#