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Feelings of numbness usually manifest themselves in the form of "fallen asleep" extremities. The trigger for this is insufficient blood circulation in the respective parts of the body, which can be caused by an incorrect posture or position. As a rule, the feeling returns after a short time, accompanied by a tingling sensation (ischemia) in the affected area. 

Feelings of numbness often occur in the fingers when riding a bicycle, as these are subjected to high pressure or the handle of the bicycle favours a misalignment. 


CAUSES of numbness 


High pressure on the outside
High pressure on the outside
 
Lateral, overstretched wrist
Lateral, overstretched wrist
 
Pressure on the carpal tunnel exit
Pressure on the carpal tunnel exit
 



High pressure on the outside 

Cause - high pressure on the outside of the hand  

numbness in the ring and the little finger


SQlab Solution 

Grips with a SQlab relief wing 

Numbness in the ring finger and little finger is caused by excessive pressure on the outside of the hand.  Pressure measurements show that the maximum pressure usually occurs on the outside of the hand. At this point the ulnar nerve runs, which is responsible for the sensitivity of the ring finger and the small finger. 

In order to reduce the pressure on the outside of the hand, we at SQlab have made the contact surface as large as possible. The grip was flattened at the top and pulled forwards and backwards so that, depending on the area of use, the surface is as large as possible. 


View the grips 




Lateral, overstretched wrist   

Cause - laterally overstretched wrist 

numbness in the index finger, middle finger or thumb


SQlab Solution 

handlebar with more backsweep for a natural hand position


The cause of numbness in the forefinger, middle finger or thumb is an overstretched lateral wrist, which can narrow the carpal tunnel. Similar to a kinked garden hose, through which no more water flows, the nerve information can no longer be transported through the narrowed carpal tunnel. This "bend" is usually caused by a too straight handlebar with too little bend to the rear (backsweep). Sports physicians recommend a stronger bend of the handlebar to the rear in order to achieve a straight transition from the forearm to the hand.

This “backsweep” creates a rearward curve so that the wrist is not over stret¬ched and the carpal tunnel is no longer restricted, thus relieving the hand and improving its position. This minimizes the risk of numb fingers and discomfort in the thumb, index and middle finger.



Which Backsweep-Type are you?

16° Backsweep

stretched out riding position, Hardtail, Racefully


  • Ideal for marathons and long mountain bike tours
  • The 16° backsweep provides a natural transition from the lower arm to the hand when in a more stretched riding position
  • The Upsweep determines the elbow position for an active riding style
  • Three different heights allowing individualized riding positions
  • Also available in carbon

12° Backsweep

upright riding position, All Mountain, Enduro



  • Perfectly complements the gravity biker
  • The 12° backsweep with its short reach provides a natural transition from the lower arm to the hand when in a more upright riding position thus protecting the wrist from the extreme strain occurring in downhill riding
  • The 4° Upsweep determines the elbow position for an active riding style
  • Three different heights allowing individualized riding positions
  • Also available in carbon



Pressure on the carpal tunnel exit   

Cause -high pressure on the carpal tunnel outlet 

numbness in the index finger, middle finger or thumb


Relief wing loads the carpal tunnel exit

SQlab Solution 

Relief of the carpal tunnel exit by means of a relief wing placed far outwards


Wide relief wing on the outside - Carpal tunnel exit is free

Cause is too high pressure on the carpal tunnel exit, often caused by relieving wings, which relieve the ulnar nerve, but under unfavorable circumstances load the median nerve. A very sensitive area, which can usually be relieved by selecting the correct handle bar sweep for a straight transition from lower arm to hand. Here we should also pay special attention that this area is pressure relieved! 

The unloading wing must be placed as far outside as possible to keep the carpal tunnel exit largely free and reduce the pressure. Already easy, but constantly recurring pressure, over a long period of time, can lead to problems such as a Carpal Tunnel Syndrome. In addition, the far outer placement of the relief wing improves the grip security, especially when supporting to the front.