Page 78 - Trimax_mag166_UK

MATERIAL OF SIMON BILLEAU

This patent design takes in consideration the fact we are
stronger during the pushing phase by using the gluts,
then the hamstrings in synergy with the quadriceps that’s
why the diameter is at its biggest. On the opposite, as we
are the weakest during the pulling phase, the diamater of
the chainring is the smallest which allows to increase the
frequency and consequently to gain some rotational speed to
go through the top and low dead centers.

Finally, this chainring is made of cnc 7075 Txxx alloy. The
weight of the chainring has been optimised to ensure the best
weight to strength ratio and aerodynamics.

This chainring is a full-mold cast body and on the inner face,
the stiffness is maintained by a 10 branches structure. All
other the chainring, they have reduced the weight as much
as they can to offer a 199g chainring (and if you remove the
weight of the spider -62g- and the 5 bolts -10g-), the chainring
can be considered at 127g for comparaison purposes.

I’ve personally used the Absolute Black
chainring on lot of hours during training
and I’ve never ever experienced my chain
falling off even on rough roads. I was using
a Connex by Wippermann chain and the
drivetrain was normally silent like any other
circular chainring or double chainring.

I’ve managed to do 4h45’ on the challenging
bike course of Challenge Wanaka.

LOne of the interests of single chainring is to me chain falling off when switching from big to small
the fact it’s simple to choose the gear ratio and to chainring or the opposite.
adapt depending on the ground elevation. There is
no need to ask yourself if you drop the chain off on The only downside of the single chainring is it’s
the small chainring. And with a cassette of 11-28, specific to a particular race.
an 50-28 ratio isn’t bigger than a 39-22...
To me, it’s a smart move to invest in a few chainrings
By consequence, there is no more risk to have the with different number of teeth or different

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