This is a type of handlebar commonly seen on newer mountain bikes. Instead of the older flat bars (which were often seen with bar ends), riser bars are bowed upwards and slightly back to give the rider a higher, wider sitting position on the bike. Coupled with a shorter stem, this changes the geometry of the bike somewhat, making it more suitable for technical trails and downhills. Climbing becomes a bit more difficult, however, as you aren't as far forward on the bike anymore.

Many different riser bars are around, the main differences being the degree of curvature in them. Most are made from aluminum, while some high-end ones are made from a carbon fibre composite to save weight.

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