Frame Shape and Size
The first comfort issue to consider is a bike’s frame.
The frame geometry or shape dictates the body position of the rider. Most recreational bikes encourage you to sit upright for comfort, while road bikes adopt an aerodynamic position for performance. If the frame geometry doesn’t match your intended riding position, there is little that can be done short of getting a different bike, although a bike fit (see below) may help.
The correct frame size is also an important factor for rider comfort. It is rare to be sold the wrong frame size when buying a new bike. But it is common for the rider of a used or hand-me-down bike, to be on a frame too big or small and suffer as a result.
When bike shopping, take a short test ride if possible to get your body’s feedback on the riding position. For an existing bike, stop by your REI bike shop to get an expert opinion. A wrong frame size can usually be exchanged.
To compare bike types, see the REI Expert Advice article, Bicycles: How to Choose.
If you ride regularly and suffer from discomfort, a professional bike fitting can be a great investment. This comprehensive approach addresses comfort first, power and efficiency second.
Your bike fitter may adjust the seat and handlebar position to best suit your proportions, range of motion, weight distribution and riding style. Handlebar style, lever position and seat style can also be corrected if needed.
Many bike shops, including selected REI stores, offer a professional bike-fitting service.
Tire Selection and Pressure
Tires also affect riding comfort.
A wide tire provides more cushion and comfort than a narrow tire, since the weight of both bike and rider are supported on a bigger air cushion over a larger surface area. Downside? A slight increase in effort is needed to accelerate and maintain momentum.
One common misconception is to pump up tires to the manufacturer’s recommended maximum pressure in order to reduce rolling resistance. This decreases the ability of the rubber to absorb road surface imperfections, thus transmitting a harsh vibration to the rider. Experiment with your tire pressure to find a balance between a too-soft and sluggish ride quality versus one that is too hard and harsh.
For mountain bikers, the trend has been toward wider tires and lower pressures. This improves the tires’ grip on the trail surface, giving better control and providing more passive suspension. It also reduces rider fatigue on rough trails or long rides.
The biggest factors affecting recommended tire pressure are the rider’s weight, riding surface and conditions and tire size/volume. In general, we recommend:
|Low Tire Pressure||High Tire Pressure|
|Riding surface||Rougher, wetter||Smoother, drier|
|Tire size and volume||Higher, wider||Smaller, narrower|
Seats and Seatposts
If you are a new or returning rider, it is normal to have some posterior soreness while your body adjusts to the new pressure. However, if you experience sharp or persistent pains or numbness, then try out a different seat.
Bike seats and posteriors both vary in size and shape, and it can take some experimentation to find a happy match. Seat designs differ for men and women and for different types of bikes.
In general, a compatible seat shape is more important than padding:
- A broad seat is best for an upright riding position.
- A narrow seat is needed for a forward leaning position.
For more information, see the REI Expert Advice article, Bike Saddles: How to Choose.
Riders with a narrow, firm bike seat should wear cycling shorts with a built-in chamois pad to provide cushioning and reduce chafing. If you prefer non-cycling shorts, consider a padded gel seat or seat cover instead.
Discomfort issues related to handlebars—whether flat bars or drop-style bars—can include:
- Hand numbness: More common with flat bars, this is often caused by nerve compression. Try changing the original round bar grips to an ergonomic grip.
- Wrist pain: This can result from too much body weight being supported by the hands, or from the angle of the handlebars or position of the hoods on a drop bar. It’s best remedied through a professional bike-fitting session.
- Control lever reach: If it’s awkward to reach a gear shifter or brake lever, adjustments can often help to bring the controls within more comfortable reach. Experiment with these yourself or get a professional bike fitting.
Bike Shorts and Gloves