Feature(may vary by option.)

●Up and down bowl inner diameter: 30mm (for the upper tube outer diameter 28.6mm front fork)
●Up and down bowl outer diameter: 44mm (for the inner diameter of 44mm bike frame)
●Suitable for built-in mountain bike frame head tube
●Built-in hidden bowl group, the upper and lower shell design, installation, removal more convenient, better sealing

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Description

Up and down bowl inner diameter: 30mm (for the upper tube outer diameter 28.6mm front fork). Up and down bowl outer diameter: 44mm (for the inner diameter of 44mm bike frame). Suitable for built-in mountain bike frame head tube. Built-in hidden bowl group, the upper and lower shell design, installation, removal more convenient, better sealing.