Innerbarends® study

SQlab Innerbarends®
Comfortable. Aerodynamic. Inside.

 

 

Bar ends for the inside = Innerbarends® 

Bar ends date back to the beginnings of mountain bikes and are normally installed on the ends of the handlebar. This was a very good idea from an ergonomic standpoint. Over time, as straight handlebars faded away, and raised handlebars became more common, barends disappeared again. 

Since handlebars have now become flat and significantly wider, bar ends are once again useful. However, we install the bar ends inside to keep them from hooking on things like trees and rocks, hence the some what contradicting name Innerbarends®!

As a result, Innerbarends® are a new, innovative evolution of the original bar ends, but with an unprecedented safety aspect. Despite the altered handle position, the brake lever is always available. 

 

The idea 

10 laps of the track with a uniform speed of 36 km/hr.

with 411 Innerbarends®

without 411 Innerbarends®

 

The research to determine air resistance

An internal study by SQlab on the track has shown that test riders with their hands on the inner bar ends were able to cover the same distance in the same time at 14 watts less. 10 test runs were each conducted at the track at a constant speed of 36 km/h. To precisely log the watt values, two power meters – provided by the company SRM – were used. 

The result

    with 411 Innerbarends®          required power 279 Watt
without 411 Innerbarends®        required power 293 Watt

On average, the riders had to muster up 293 watts without inner bar ends and 279 watts with them. The aerodynamic elbow position when using Innerbarends results in a 5% power saving!

Advantages of 411 Innerbarends® 

 

 

Perfect Muscle Relief 

The perfect solution for relieving muscle groups in the arms, shoulders and backs by changing the arm position on the bike, especially over long distances. 

 

Maximum Speed

The aerodynamic, relaxed elbow position ensures maximum speed. 

Natural Hand Positions 

Natural Hand Positions SQlab Innerbarends® 411 ensure an absolutely natural hand position. 

 

SQlab Innerbarends

Comfortable. Aerodynamic. Inside.

The pelvis

When sitting normally, the sitbones support the body‘s weight and have the capability to withstand high pressure. This should also be the case when riding a bicycle. With an athletic riding position, the perineal area of men and the lower positioned pubic bone arch of women on the saddle.

The well branched out network of nerves and blood vessels of the perineal area reaches from the anus via the genitals to the upper pubic bone arch. On the sides it reaches past the pubic bones. 

These are capable of carrying a small weight – but a pressure reduction is essential. An even pressure reduction in the perineal area and the pubic bones is achieved through the lowered nose of our SQlab step saddle concept.

The sitting position

When sitting, the sitbones (areas marked in green) serve the purpose of supporting the body’s weight, hence they can endure a high load and pressure. They should also be utilised in this way when riding a bike.

 

In a dynamic riding position the contact point moves from the tip of the sitbones, forwards along the pubic arch to the pubic bone and the central perineal area is used for resting on for both genders. Women however, typically have a lower pubic arch which can result in higher pressure from the saddle nose when riding in a dynamic riding position. The surface area the riders weight is resting on is especially critical in a very dynamic and forward riding position and in such a case the riders weight should not only be supported in the centre but also on the pubic bone.

 

The sitbone and pubic bones both come together from their widest points in a “V” shape. This means the more dynamic the riding position, the narrower the saddle is allowed to, and should be.

Already in 2002 we developed a simple equation which uses the distance of the sitbone tips in dependence of the riding positing to calculate the perfect saddle width. This method has meanwhile been established globally. The method may be interpreted slightly differently from different saddle manufacturers and many leave the adjustment equation away all together, but our basic concept is used in all of these measuring methods.

 

The flexibility of the spine has much less influence on the positioning of the pelvis as often assumed. Spine and pelvis should remain in a natural position relative to each other and not be forced into a certain position, even if the body is very flexible.

 

Especially with the SQlab step saddle it is no longer necessary to tilt the pelvis backwards as the typical pressure zone of the perineal area and pelvis arch no longer pose a problem due to the lowered position of the saddle nose. The energy which is often required to hold the pelvis upright while the upper body taks a dynamic and forward position is no longer required with the SQlab step saddle and can instead be used for pedalling and propelling the bike forward. In addition, there is substantially less load on the spinal discs.