Another unique product from Profile. HIP stands for Hidden Internal Piston, which uses the force of the front 4 Allen bolts to clamp the bars to the stem, whilst simultaneously claming the stem to the fork tube! This means that there are no bolts needed on the fork tube, reducing the weight and making the end cleaner (no more nicks out of your knees during bar spins!). It comes in a choice of 3 reach lengths and either Polished or Black Anodised finish.