Coefficient AR Carbon Handlebar

The Coefficient AR’s unique shape and proportional sizing optimize how riders interact with the front of their bicycle.

We blended volumes of anthropometric and ergonomic data with real-world advice from professional bike fitters and coaches, as well as feedback from professional and amateur cyclists. The result is a better handlebar for better performance.Ideally Suited For

Endurance Road Cycling & Racing

Gravel Riding & Racing

Cyclocross

Bikepacking & Touring

Literally dozens of prototypes are buried in the Coefficient AR bar boneyard. The Coefficient SWOPE (Slope + Sweep) combine to provide a more comfortable and efficient ride that translates to improved performance, especially on longer journeys.

Materials & Dependability

The Coefficient AR Handlebar is moulded using Toray unidirectional carbon fibre and tested to the highest ISO international standards for professional road and mountain bike racing.

Proportional Sizing Syncs Bar Width & Grip Size

Riders of smaller stature generally have small hands. Proportional sizing is all about the grip diameter of the Coefficient AR’s tops.

As you’ll read in the chart, a 38cm bar has a much smaller grip diameter than a 44cm bar.

Proportional Sizing & Specifications

Available Sizes (C to C)

38cm

40cm

42cm

44cm

46cm

Clamp Diameter

31.8mm

Drop

120mm

Reach

77mm

SWOPE (sweep+slope)

Sweep: 16 degrees  /  Slope: 12 degrees

Flare

5 degrees

Drop Width (C to C)

40cm

42cm

44cm

46cm

48cm

Crown Grip Diameter

30mm

33mm

35mm

37mm

37mm

Slope Grip Diameter

29mm

31mm

33mm

35mm

35mm

Clamp Area Width

51mm

69mm

73mm

78mm

83mm

Weight (grams)

225230235240