How to Choose Bike Saddle

The choice of a bicycle saddle in Bontrager via process InForm BioDynamics is made according to the rider’s posture on the saddle, the optimization of the pressure on the saddle and the width measured on the cyclist between the tuberosities ischial.

This dossier discusses a method of choice linked to the manufacturer Bontrager. Indeed, evaluations modes differ between brands, even if we find some similarities, do not take into account the same measures or assessments on the cyclist to move towards a proper choice of bike saddle and bike light through HEALTHVV.COM.

The cyclist will find a choice of Bontrager InForm BioDynamics stools created based on research conducted by an independent university. Thus Bontrager bicycle saddles models differ in their widths, their curves, their shapes and design adapted to the cyclist’s sex.

Engineers use a biomechanical approach, they study the movements of the human body in order to understand the relationship between the rider’s posture, the pressure on the saddle and overall performance.These studies are done dynamically using different sensors.

Feature: How to choose your road bike saddle?

Focus on the pelvic anatomy (the basin)

  • The ischial tuberosity (1) are the bony landmarks to the point of lowest basin.
  • The pubic rami (2) are bony structures extending from the ischial tuberosities to the cartilaginous joint known as the pubic symphysis.
  • The pubic arc (3) refers to the upper parts of the pubic rami, below the pubic symphysis (4).

The valuation principles to choose a saddle with Bontrager

  • Bontrager is based on a principleof cycling posture during practice on an initial assessment. This assessment is based on the pelvic rotation and oscillates a straight posture in bed.
  • The second evaluation is based on thedistribution of the pressure exerted by the cyclist on the points of contact with the saddle.
  • The third evaluation is done by measuringthe width of the ischial tuberosity of the cyclist.

Bontrager determines a 3 step method to choose his bike seat.

Step 1: A saddle according to the cyclist posture.

The rider’s posture is the basis for the choice of the seat because it determines the portion of the basin which is in contact with the saddle. In the diagrams provided by Bontrager, we see the ischial tuberosity which bear on the saddle and the pubic rami when it tilts.

The shape of the saddle must properly support the skeletal structure while relieving pressure on the soft tissues and / or perineum in this posture. So every Bontrager saddle is classified into 5 positions.

Step 2: Measure the pressure exerted on the saddle

Bontrager is based on the principle that the ultimate comfort of the cyclist on the saddle from a homogeneous pressure distribution on the surface of the saddle.

As cyclists turn their pelvis forward, the weight distribution is made on the movements on the saddle to the ischial pubic rami. The pubic bones are the main support structure for all cyclists except relaxing posture.

Pressure points according to the rider’s posture

Posture 5: Leisure
Cyclists with a leisure posture with the least of pelvic rotation, driven by the sit bones.

Posture 4: Fitness
Cyclists with a fitness posture that are worn by the pubic bones of the basin near the sit bones.

Posture 3: Performance
Cyclists with a performance posture which are mainly supported by the pubic bones.

Posture 2: Aggressive
Cyclists with an aggressive posture that are supported by the pubic rami near the pubic arch.

Posture 1: Aerodynamics
Cyclists with an aerodynamic posture that the pelvic rotation ever before, and are largely supported by the pubic arch.

stool designs at the Bontrager

Thus each saddle designed by Bontrager has characteristics or optimization of pressure fittings, such as multi-density foam, surface materials and worked tailored soft cups. The cyclist will therefore be able to easily switch between various saddle models. Bontrager saddle thus determines three design modes:

The curvature defines the cross-sectional shape of the saddle and affects the angle at which the forces are transmitted from the seat to the bone structure of the cyclist.

The profile defines the shape in side view of the saddle and affects the way in which the driver is able to move forward / backward in the saddle. The profile may also affect the rotation of the cyclist’s pelvis on the saddle.

The transition defines the shape in plan view of the saddle and mainly affects the front / rear position of the rider on the surface of the saddle.

These three concepts are determined during the design phase saddle when the expected position of the cyclist is identified. Each saddle is designed for one of the positions provided.

saddle pad choice

Also note that classification ultimately saddle model determines the choice of trim level of the saddle.

Step 3: Choose the size of the saddle

Once the rider’s posture and optimal pressure distribution have been defined, the rider will sit on a saddle Inform dimension tool to determine the width of the saddle it will take.

Note that some models do not stick to this trend and have their own specificities. Here is the tool that will be used for technicians bike shop to determine the points of support at the sit bones and the width of the ischial tuberosity. ( Women Tool shown here. )

Stool specific women Bontrager

Bontrager develops and designs specific saddles for women to provide better fit and additional comfort. Thus stool see a larger cutting and saddle nose formed for stable comfort lying down.
Similarly, a central area is designed to release the pressure on the soft tissues of women.

comfort systems Bontrager saddles

Some stool stool use gel to cushion and further reduce vibration. A layer of gel between the hull and the foam can help prevent the feeling of “bottoming out” sometimes experienced by runners when they completely compress the foam into the hull.

The rails hanging Bontrager bicycle saddles

Of the various models the buyer will have a choice of carbon rails, titanium or chromoly. Bontrager designs a specific carbon hanging rails system that have the effect of increasing the flexibility and damping effect of vertical shocks.

Hulls Bontrager saddles

Of the various models the buyer will have a choice of full carbon hulls, nylon reinforced with carbon fiber, nylon reinforced with fiberglass.

The coatings of Bontrager saddles

  • leather upholstery
  • Microfiber cover
  • synthetic leather

You now have a few items to make your seat selection at Bontrager.

Gallery

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