CAMPAGNOLO COMPONENTS - TECHNICAL MANUAL
4
The use of sprockets or chainrings which are not marked Campagnolo
®
can damage the chain. This
may result in its unexpected opening of the chain and cause accidents, personal injury or death.
WARNING!
3 - 12s / 11s CHAIN INSTALLATION
• All connecting and disconnecting of the Campagnolo
®
11s / 12s chains should be performed using the
special Campagnolo
®
UT-CN300 / UT-CN400 (Tab.pag.3) tool. Use of other tools could damage the chain and/
or provoke unexpected chain failure resulting in an accident, personal injury or death.
• The pusher of the Campagnolo
®
tool UT-CN300 / UT-CN400 is provided with a replaceable tapered tip pin;
if the pin is damaged or it becomes worn, please replace it with the suitable Campagnolo
®
spare pin UT-
CN301. Failure to timely replace the tip pin can damage your chain, resulting in an accident, personal injury
or death.
WARNING!
3.1 - CHAIN LENGTH FOR 12s MECHANICAL GROUPSETS
For the length of the chain (only with a crankset with 48-32 chainring and 11-34 sprocket box), follow the indications below accor-
ding to the frame chainstay length:
405 - 409 mm: 108 links
410 - 415 mm: 110 links
over 415 mm: 112 links
For any other crankset combination from that indicated above, the chain must be 110 links long for frames with a chainstay length
between 405 and 415 mm.
3.2 - CHAIN LENGTH FOR 12s ELECTRONIC GROUPSETS
• • Determine the correct length of the
chain positioning it on the sprocket and
the smallest chainring and ensuring that
the measurement H (Fig. 1), the distance
between the bottom part of the rocker
and the upper part of the chain, is about
circa 10 - 15 mm.
• In order to avoid malfunctioning of the
drivetrain, the measurement H should not
under any circumstances be less than
3 mm and must not be greater than 22
mm because, with a large sprocket and
chainring the chain would be excessively
taut.
Fig.1
An incorrectly assembled chain unexpectedly break, while riding in an accident, personal injury, or death.
If you have any doubt whatsoever regarding your ability to properly perform any of the operations in this
manual, please take your bicycle to a qualified repair shop.
WARNING!
H
CHAIN - Rev. 06/ 02-2021
