Commencal ABSOLUT, Инструкция по эксплуатации и техническому обслуживанию

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NFORMATION ON THE GEAR CHANGING SYSTEM
If you would like to adjust the indexing of your gear system, refer to the Gear
Changing chapter.
TIP! Modern mountain bicycles can have up to 27 gears, but not all are necessarily
usable. Extreme ratios, such as the largest chainring/largest rear cog, put the
chain through large amounts of stress, resulting in a much faster wear rate for the
transmission parts. This is called “chain crossing”. To avoid chain crossing, only
use the 5 smallest cogs when on the big chainring, or the 5 largest cogs when on
the smallest chainring.
All our bicycles are equipped with an indexed gear change system.The left
hand shifter on the handlebars is used for the front gear mechanism (also
known as a mech or derailleur). The right shifter is used for the rear gear
mechanism. The gear mechanism system is used to adapt your pedaling to
different terrain types. It works as follows:
For the front mech:
- Big chainring: spins at a slower rate, allowing you to build up speed on
descents.
- Small chainring: spins at a faster rate so is better adapted for climbs
For the rear mech:
- Big cog: low ratio better adapted for climbing.
- Small cog: high ratio better developed for descents.
ADJUSTING THE CHAIN TENSION FOR THE ABSOLUT
1. If your bicycle has a removable disc mount, slightly loosen the bolt that
holds it to the frame.
2. Loosen the rear wheel axle (fig17).
3. If your bicycle has chain tensioners B, tighten the nuts C on the threaded
rods either side to increase the tension of the chain. Loosen the bolts to
reduce chain tension (fig17).
4. Loosen the bolts to reduce chain tension C (fig17).
5. Make sure that you loosen or tighten the nuts equally so as to keep the
rear wheel centered with the frame.
6. Adjust the chain tension so that there is 1cm of vertical play in the chain
at the halfway point between the wheel and crank axle (fig.18).
7. Re-tighten the rear wheel axle (30Nm torque setting).
8. If relevant to your bicycle, re-tighten the disc brake mount (8Nm torque
setting).
9. Turn the crank arms by hand and check that the chain tension is correct
at different locations.
fig.17 fig.18
BEFORE YOUR FIRST RIDE
EN