The Problem Solvers Micro Adjust Headset Spacer offers a sleek and practical solution for precise headset preload adjustments without the hassle of star nuts. Crafted from black anodised aluminium, this 12mm spacer fits neatly between your stem and headset, allowing you to fine-tune the bearing preload with ease and accuracy. Designed especially for carbon steerers and riders who prefer to avoid traditional star nuts, the adjustable spacer clamps securely to the steerer tube. Its micro-thread mechanism applies controlled pressure between the stem base and headset top, ensuring a reliable and vibration-free ride. What It’s Good For Providing precise headset preload adjustment without a star nut Ideal for carbon steer tubes where traditional star nuts may cause damage Easy installation and adjustment thanks to its micro-thread design Durable black anodised aluminium construction for long-lasting performance What It’s NOT Good For Use on steer tubes with less than 10mm stack height below the stem Applications requiring a star nut or preload compression plug Riders seeking a spacer without adjustable preload features Frequently Asked Questions Can this spacer be used on any bike?It is best suited for bikes with at least 10mm of stack height below the stem and is ideal for carbon steerer tubes. How does the micro-thread adjustment work?The micro-thread applies pressure between the base of the stem and the top of the headset, allowing fine preload tuning without needing a star nut.