●Material: the adapter is made of aluminium alloy, which is robust and durable, no rust, high toughness ●Dimensions: total length: 150 mm; top diameter: 28.6 mm; base diameter: 22.2 mm / 25.4 mm ●Comfortable – with this adapter, handling is more flexible and when climbing, it is easier to absorb strength and it is more comfortable ●Easy installation – simply connect the original bicycle fork ●Use: the handlebar adapter is suitable for mountain bikes. There are two sizes, please choose and buy according to your requirements