Handlebars

Handlebars are the mechanism for controlling steering on a bicycle. They also support part of a rider’s weight, depending on position, and provide a location for mounting other controls, such as shifters and brake levers, and accessories, such as a reflector, light, bell, or side mirror. Handlebars attach to the [[stem] via a clamp.

Types

There are two broad categories of handlebars. These are flat and drop handlebars. While each is named for the most common variant within them, they are categorized according to the diameter of the tubing, particularly that in the grip area. Both due to design and tubing diameter differences, each style has associated controls and accessories. These differences and some variants of each style are discussed below.

Flat

Upright bar

Riser bar

One style of handlebar is the flat handlebar. The conventional form of this type consists of a straight tube, hence the name. The grip area diameter of this tube is 22.2 millimeters while the clamp size may be either 25.4 millimeters, as on older bikes, or 31.8 millimeters, for some more modern bikes.

Flat handlebars are held by rubber grips at the bar end and the bar is either covered by the grip or by a plug. They all share a similar style of brake lever and may use thumb, grip, or trigger shifters

Flat bars come in a number of variants. The following is a list of some such variants.

• Riser
• Upright or North Road
• BMX
• Cruiser

Drop

Old drop bar with extension brake levers

New drop bar with integrated shifting

The other style of handlebar is the drop handlebar. These handlebars are bent in such a way to provide multiple hand positions, including a low, aerodynamic position from which they derive their name. The grip area diameter of this tube is 23.8 millimeters while the clamp size may be either 26.0 millimeters, as on older bikes, or 31.8 millimeters, for some more modern bikes.

Drop handlebars may be gripped anywhere along the bar, which is typically covered by some sort of bar tape for comfort. Bar ends are covered by a plug that also often doubles to secure the bar tape.

They all share a similar style of brake lever, which can be activated while on the hood or in the drops. Old examples of such brakes incorporated extension brake levers for use while on the flat portion of the bar. More modern examples have done away with this, but may be paired with interrupt brake levers for this purpose.

On old bikes with drop bars, the shifters were commonly on the downtube or stem. Some have what are called bar end shifters, which take the place of plugs. Modern bikes with drop bars often use shifters that is integrated into the brake level, often called brifters.

Drop bars come in a number of variants. The following is a list of some such variants.

• Traditional
• Randonneur
• Track

See Also

• Wrapping Handlebars

Spanish

Manillar (f)