motorcycle phone holder for handlebar ϕ22mm

Introduction
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I made this phone holder for my bike. I like to use google map to navigate around on my bike.

Before, mounting the phone in the centre of handlebar was quite difficult. In fact, there weren't much phone holder in the market that fit the shape of cb125e's handlebar. There was one using ball head but it was too weak to hold the phone properly since the ball was made from plastic.

A 3d printed phone clip seems not strong enough unless I make it thick and and obviousl