It often starts quite inconspicuously: After some time on the bike, a slight tingling sensation becomes noticeable, and later the genital area may feel numb. What initially seems like a temporary side effect of a longer ride can quickly dampen the enjoyment of cycling – whether you are commuting to work on a city bike or out on your e-bike at the weekend.
Many cyclists suspect in such situations that their saddle is simply too hard. But it is often worth taking a closer look. Even an unfavorable saddle tilt, the wrong height, or an unsuitable riding position can contribute to increased pressure on sensitive areas of the body.
Numbness while cycling can occur when nerves or blood vessels in the perineal area are compressed. The saddle shape, riding position, and bike setup often play a role together. If such symptoms occur, the affected area should first be relieved of pressure.
So before you buy a new bike saddle, it is worth taking a closer look at the possible causes.
Why can a bike saddle cause numbness?
When cycling, part of your body weight is supported by the saddle. The sit bones play an important role here: they support the body and absorb some of the pressure.
If too much pressure is placed on the sensitive perineal area, however, the nerves and blood vessels running there can be affected. Possible consequences include tingling, reduced sensation, or numbness in the genital area.
This does not necessarily mean that the bike saddle is fundamentally unsuitable. Sometimes the pressure is only caused by a combination of several factors. A slightly too-high saddle, for example, can cause the pelvis to tilt sideways while pedaling. If the saddle nose is also tilted upwards, the front seating area can be subjected to greater pressure.
Riding posture also makes a difference. Someone who leans further forward on a trekking bike distributes their weight differently than someone sitting upright on a city bike. In addition, on longer rides without changing position, the same areas of the body are subjected to pressure for extended periods.
Scientific studies also show that pressure in the perineal area plays a role. A 2021 systematic review published in the journal Sports Medicine examined various ways to reduce pressure while cycling. It became clear that both saddle design and changes in riding position can play a role.
Numbness should therefore not simply be accepted. It is different from the usual pressure sensation on the sit bones that some cyclists experience after longer breaks from cycling.
The self-check: Where does the pressure come from?
If numbness occurs during a ride, you should first stop and relieve pressure on the affected area. Then it is worth taking a closer look at your current riding position.
For example, consider whether the discomfort begins after just a few minutes or only after a longer distance. Does it make a difference whether you sit upright or lean further over the handlebars? And does the sensation change as soon as you stand up from the saddle?
While such observations do not provide a definitive diagnosis, they can offer clues as to which pressures play a role while cycling.
The saddle tilt should also be examined. If the saddle nose points significantly upwards, this can increase pressure in the front seating area. If it is tilted too far downwards, however, the opposite problem often occurs: the body slides forward, while the hands and arms have to support more weight.
For many saddles, a largely level orientation is a good starting point. However, the shape of the respective model also plays a role.
Also pay attention to how stable your pelvis remains while pedaling. If your pelvis keeps tilting sideways while pedaling or you constantly have to correct your riding position, this may indicate an unfavorable saddle adjustment.
If you find that the discomfort occurs mainly in a particular riding position, it is worth checking your bike setup. Changes should only be made gradually.
If the numbness persists after getting off the bike or regularly returns, you should have the symptoms checked by a doctor instead of simply trying out different saddles.
What to do about numbness while cycling?
A new bike saddle is not always necessary. It is often useful to first check the existing setup. Saddle height, pressure distribution, and pressure during longer rides deserve particular attention.
Check saddle height and tilt
An unfavorable saddle height or tilt can increase pressure on sensitive areas of the body. If the saddle is set too high, for example, the pelvis may tilt sideways while pedaling. A saddle nose tilted significantly upwards can, in turn, place greater pressure on the perineal area.
Therefore, check whether you are sitting stably and whether uncomfortable pressure builds up in the front seating area while riding. Small adjustments can help change the pressure distribution. You can find detailed instructions on the correct saddle setup in our guide Making a bike saddle more comfortable.
Pay attention to the correct saddle width
A particularly soft or wide bike saddle may initially sound more comfortable. However, the deciding factor is that the seating surface must suit your own anatomy. The General German Bicycle Club (ADFC) also points out in its guide to saddle selection how important the sit bones and individual riding posture are when choosing a saddle.
The sit bones should be sufficiently supported. If a saddle is too narrow, the pressure may be distributed unfavorably. An excessively wide model, on the other hand, can restrict freedom of movement and cause additional friction.
What width is suitable depends on the distance between the sit bones and your riding posture. A wider comfort saddle is often suitable for an upright riding position on a city bike or e-bike. Those who ride with a more forward-leaning posture may require a different shape.
Some ergonomic bike saddles have a central cutout or pressure-relief channel. Such designs can change the pressure distribution and, if the shape is suitable, reduce pressure in the perineal area. However, they do not guarantee protection against numbness.
Reduce vibrations and prolonged pressure
On cobblestones or uneven cycle paths, the pressure from your own body weight is compounded by additional vibrations. A scientific study from 2018 showed that stronger vibrations can be associated with higher pressure in the perineal area. Suitable suspension can dampen such shocks, but it does not automatically resolve the cause of numbness.
This is why it is particularly useful on longer rides not to remain in the same position for extended periods. Occasionally change your riding posture, provided this can be done safely, and take regular breaks.
If numbness occurs, you should stop and relieve pressure on the affected area. If the symptoms return, simply relying on better suspension is not enough.
When is a different bike saddle worth it?
If the saddle height, tilt, and riding position have already been checked, but the discomfort persists, the shape of your current saddle may be another point to consider.
When is a wider bike saddle suitable?
A wider seating surface can be particularly comfortable in an upright riding posture, such as that commonly used on many city bikes and e-bikes. The prerequisite is that it suits your individual distance between the sit bones.
One example is the WEST BIKING Retro Comfort Saddle, which is available at ReverbRide. With its 33 cm wide seating surface, high-density foam padding, and dual suspension, it is aimed primarily at cyclists looking for a larger support surface and additional suspension comfort on relaxed everyday rides.
However, whether such a model is right for you also depends on your anatomy and riding posture. A wide or sprung saddle is not a guaranteed solution to numbness.
If you would like to compare different saddle shapes, you can find other models for different requirements in our Ergonomic Bike Saddles category.
Can a saddle cover be an alternative?
A padded saddle cover can make an existing saddle softer. However, additional padding alone is not necessarily helpful for numbness, especially if the actual cause is an unsuitable saddle shape.
Numbness is not always the only problem when cycling. If you also suffer from pressure points or pain in the buttocks, our guide Buttock Pain While Cycling – Causes and Solutions explains which factors may play a role.
When should numbness be medically examined?
Not every instance of numbness can be explained by the bike setup alone. In addition to pressure on nerves and blood vessels in the perineal area, other causes are also possible.
If the numbness does not disappear after the ride, recurs, or is accompanied by pain, weakness, or changes in bladder or sexual function, you should seek medical advice.
If numbness suddenly occurs in the genital or perineal area, especially together with new bladder or bowel dysfunction, you should seek medical attention immediately. In rare cases, such symptoms can indicate a serious neurological cause.
A different bike saddle can improve seating comfort, but it cannot replace an examination for persistent or unexplained symptoms.
Conclusion: First check the cause, then change the saddle
Numbness while cycling is a signal that you should not ignore. It is often worth taking a closer look at your riding position first: Is the saddle set up correctly? Does its shape suit your riding posture? Are the sit bones sufficiently supported?
Sometimes even small changes to the bike setup can help distribute the pressure more comfortably. In other cases, a differently shaped saddle may be suitable.
Instead of choosing as much padding as possible, you should look for a suitable combination of saddle shape, riding posture, and setup.
Discover Bike Saddles and Saddle Covers from ReverbRide, if you would like to compare different options for more seating comfort.
Sources and further information
The information in this article is based on recommendations for bike ergonomics as well as scientific studies on pressure while cycling
- ADFC – Finding the Right Bike Saddle: Guidance on saddle width, sit bones, riding position, and saddle shapes.
- Litwinowicz et al. (2021) – Strategies for Reducing the Impact of Cycling on the Perineum in Healthy Males: Systematic review of saddle designs, riding position, and pressure relief.
- Effect of Oscillation on Perineal Pressure in Cyclists (2018): Experimental study on the relationship between vibrations and pressure in the perineal area.
- Royal Free London NHS – Cauda Equina Syndrome: Medical information on neurological warning signs and symptoms that require urgent medical attention.
*Note: This article is for general information purposes only and does not replace a medical diagnosis or treatment.
0 comments