Problem Solvers Headset Stack Spacer - 25.4 | 3mm | Black Aluminum

Why Choose Problem Solvers Headset Spacers for Stack Height? Getting your stack height dialed is one of the most overlooked fit details on a bike, and the Problem Solvers Headset Stack Spacer makes it easy to nail precisely. This 3mm spacer gives you fine-tune control over handlebar height without overshoot, perfect for riders working through a fit change or building out a new frameset that needs incremental adjustment. Made from CNC-machined aluminum with a clean anodized finish and no logos, it blends seamlessly into any headset stack. The 25.4mm (1 inch) inner diameter fits standard 1-inch steerer tubes found on older road bikes, city bikes, and vintage steel builds. The black anodized finish is understated and professional, and the logoless design keeps your cockpit clean. Sold individually, so you can order the exact count you need rather than a kit full of sizes you won't use. A smart, simple piece that belongs in every home mechanic's parts bin.