Page 82 - Trimax_mag166_UK

MATERIAL OF SIMON BILLEAU

The Sram 1X is also more quiet than a classic
groupset from the fact there isn’t a front deraillor.
You can’t hear the chain rubbing on the forks of
the front deraillor. The technology of the chain
X-Sync with its narrow-wide teeths allows the
chain to stick nicely on the drivetrain instead of
slapping the frame when riding on a hole, a bump
or just changing the gear.

With the Sram 1X chainring, we know we are using
constantly the single chainring. For this reason, some
people could imagine it is a groupset specifically
designed for flat races. To make sure the 1X groupset
is working out also for hilly races, they have invented
a new range of gear ratio cassettes (from 11-26 to 10-
42). It is an « XD » hub that allows the extra 10 teeth
gear.

Note that a 54-38 is smaller than 39-27 (3,03m versus
3,08m). Sram X-Sync chain.

The 1X chainring allows also to free your mind about But, I experienced few dropped chains during
the shifting process. No more worry about when training when I was riding in freewheel with my
is the best or should I say the least bad moment to training chain (a cheap chain in a quite worn state)
change from small to big chainring or the opposite and with my training pair of wheels which has cheap
bearing...
and to adapt the few speeds on the cassette...
That’s one of the reason why Sram highly recommend
Many riders have experienced the frustration of
dropping a chain, which can cost precious seconds to use the 1X groupset all together.
in a race, or even cause dramatic damages (chain Sram has a huge experience in MTB and CX. The
stucked between the chainring and the chainstay).
With 1X, though, the worries of dropped chains single chainring has been adopted by their MTB
disappear. riders since 2012 and CX riders since 2014.

The aerodynamics advantage is obvious. The lack
I have so many memories of athletes struggling with of front deraillor, the deraillor hanger, the small
their chain being dropped (including me) because
of switching too lately in a steep hill or putting too chainring, the shifting lever, the cable, all these
much power on the drivetrain during shifting. components that sit in the wind aren’t on the bike
anymore.

I’ve been testing the Sram 1X with 54 teeth during We would have just enjoy a bit more aero on the
1 year and half and I’ve done few competitions with
it including the Ironman France in 2016. Equipped chainring itself like a Vision Metron for example.
with a 11-28 cassette, I was fine on the hilly bike race There are some gaps between the spider and the
of Nice. It allows me to have a full bike with a disc chainring that would be nice to remove.
wheel and 3 spokes front wheel at only 7,2kgs. That’s why I’ve added an aero cover on top of the
It has been a very reliable chainring and I’ve never
experienced a dropped chain when used with the Sram 1X on my bike during races.

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