Below is the English translation
are not considered masterpieces in the composition of a bicycle. These posts
connecting your bike frame to your saddle have the sole function of adjusting
the height and recoil of your saddle in the imagination of users.
are particularly important for several reasons:
two points are well understood triathletes that we are. However, when it comes
to comfort, it is thought that only the saddle and / or the frame have this
time now, companies have been developing elastomers in certain components (in a
previous issue, you were introduced to the Redshift stem using the same
B3F is the
first company to embark on this niche in the seat post.
companies have tried to rush into this niche with more or less success.
Specialized seat post, for example, the CG-R, offers a vertical movement of
18mm while the Ritchey (WCS Carbon Link Flexlogic) and the Syntace (P6 Carbon
Hiflex) have a particular carbon fiber braiding meant to improve the comfort .
These 3 seat posts were tested by an independent agency (Microbac Laboratory in
Boulder, Colorado, USA) and showed poor comfort results.
ABOUT THE B3F SEAT POST?
presentation of the company and its inventor before describing the concept and
the sensations experienced in the field.
the company behind B3F. Its founder, Sangill Lee, has developed this seatpost,
patented it and designed it. He realizes bicycle positioning in South Korea.
seatpost looks like two drops of water close to a standard seatpost but the
innovation comes from the Formga. The latter is an elastomeric compound that is
supposed to absorb shocks and vibrations.
Formga is a
synthetic rubber that is able to deform in all three axes (X, Y, Z).
seatpost itself weighs 278g which is obtained by high quality compounds: the
tube is uni-directional carbon, the rail fastening system is CNC machined
aluminum, the bolts are made of titanium and the nuts hardened steel.
seatposts are fixed and do not allow movement. However, there is friction
between the top of the saddle and the hips, which results in a loss of energy
and sometimes pain in the iliac bones.
seatposts cause other problems that are:
pedaling which reduces the pedaling frequency,
fatigue and pain due to vibration.
contrast, the B3F seatpost with its integrated elastomer promotes a natural
pedaling of the user. This reduces stress in the spine and iliac bones due to
twists and rotations.
seatpost was originally developed to minimize bike saddle pains and improve
positioning on the bike.
pain, one is entitled to expect an increase in speed or at least a maintenance
of power over time.
pedaling cycle, the power varies. The maximum power is developed when the crank
is around a horizontal position.
not lose energy with Formega because of its optimized composition of its
elastomer. In the middle, the elastomer is rigid to reduce energy loss. In
contrast, the elastomer is flexible at its four corners allowing the hips to
remain in contact with the saddle without twists or unwanted friction.
In terms of
comfort, the Formega allows movements in the three axes: from front to back, on
the sides and from top to bottom. This helps absorb shocks and vibrations
related to imperfections of the road.
helps the saddle to follow the movements of the pelvic girdle. It follows a
reduction of friction between the thighs and at the saddle. "Less
friction" implies "more pleasure".
to its inventor, there are two factors that produce energy:
strength of the muscles,
seatpost promotes optimal use of body weight in propulsion.
post is also safer.
To take a
turn, we look at the side of the turn.
the speed and / or the steep turn, the more you bend and therefore the angle
between the bike and the road is closed, increasing the risk of falling.
seatpost B3F due to its ability to deform under the weight of the cyclist will
bow to the side of the turn.
additional inclination of the saddle reduces the angle of attack and therefore
the risk of falling.
seatpost reduces the risk of injury due to the flexibility of Formega. The
human body is asymmetrical. Traditional seatposts offer no solution for
asymmetries such as different leg lengths, except for lowering the seat height.
seatpost reduces the difference in leg length.
the seatpost B3F, because of the permanent contact between the saddle and
clothing but without the recurring friction, significantly reduces the wear of
cyclist or triathletic clothing.
I had to
spend the first period somewhat confusing because of the continuous movements.
We really realize that on a traditional seatpost, we are reduced to adapt to
the saddle when it should be the opposite ... Then, we appreciate the natural
movements of the saddle.
the hardness of the elastomer can be modulated by screwing the two nuts onto
the top of the rail attachment system. It is necessary to test, reduce or
increase the hardness of Formega to find the personal optimum.
are surprised to develop desired powers without having friction.
outings on granular roads, we can easily see the contribution of the elastomer.
The vibrations absorbed by the Formga are no longer transmitted to my lower
back, which allows me to stay in a more aggressive position and therefore keep
two innovation awards at the last Taipei show for its B3F seatpost.
At 259 €,
this seat post makes your competition bike as comfortable as it is fast.