Park Tool Co.
A worn chain shifts poorly and wears sprockets at an accelerated
rate. The CC-2 Chain Checker provides a precise measurement of
chain wear on most derailleur chains.
Instructions:
1. Set pivoting gauge so "0" is visible in viewing window.
2. Lower CC-2 so fixed pin rests between chain's outer plates
and movable pin rests between chain's inner plates.
3. Lightly push pivoting gauge just until it stops. Forcing the
gauge will damage the CC-2s pins, resulting in inaccurate
measurements. Read number in viewing window. Chain re-
placement is generally recommended at .75%, although this
percentage can vary between chain manufacturers. Contact
the manufacturer for specific recommendations.
Notes:
Because a chain must have a small amount of play in the links
to run smoothly, the CC-2 will show a reading of .25% to .5%
on new chains. This does not mean that the chain is .25% to
.5% worn. It only means there is .25% to .5% play built into the
links of the chain before it starts to wear. No matter what the
reading of a new chain, it should be replaced when the CC-2
shows a reading of .75 (or the percentage recommended by
the manufacturer).
The length of time and amount of riding it takes to wear a
chain is determined by several factors, including chain quality,
riding conditions, and level of maintenance. As a result, chain
life can vary significantly.
1
2
Moveable pin
Beweglicher Stift
Goupille mobile
Perno movible
3
© 2009 Park Tool Co. / ® The color BLUE is a registered trademark and trade dress of Park Tool Co.
CC-2 Chain Checker
6 Long Lake Rd. St. Paul, MN 55115 (USA) www.parktool.com
Pivoting Gauge
Schwenkbare Anzeige
Levier pivotant
Medidor de perno móvil
Inner plates
Innere Laschen
Plaques intérieures
Placas interiores
Tool body
Werkzeugkörper
Corps de l'outil
Cuerpo de la herramienta
Outer plates
äußere Laschen
Plaques extérieures
Placas exteriores
Fixed pin
Feststehender Stift
Goupille fixe
Perno fijo