6.1K views · 243 reactions | To alleviate poor shifting and uneven drive train wear, manufacturers recommend chain replacement before rear cog replacement. Quickly and accurately determine the wear and stretch of any chain with the Park Tool CC.2 Chain Checker. Simply insert the CC-2’s pins into two links, lightly press the swing arm gauge, and then check the gauge window for an accurate reading. Learn more: bit.ly/2PO4tdh | Park Tool | Facebook

3.7K views · 20 reactions | How do you measure chain wear? Well, using the Park Tool CC-4, it's really very simple... | Bikebug | Facebook

5.7K views · 257 reactions | The Park Tool SK-3 is a great way to start a tool collection! The perfect combination of tools to help the home mechanic clean, adjust, maintain, and do some basic repairs on their bike. The SK-3 includes more than 15 genuine Park Tool products plus a custom Park Tool toolbox. Learn more: bit.ly/3csrkBa | Park Tool | Facebook