Mountain bikers and bike mechanics dealing with brake compatibility issues, this Avid spacer set is exactly what you need to get your brakes properly aligned! The set includes spacers for both front (180mm) and rear (160mm) configurations, adapting those 74mm calipers to work with various forks and frames. The stainless steel bracket mounting bolts included mean you have everything needed for installation without hunting for additional hardware. Perfect for when you're upgrading rotors or dealing with frame/fork compatibility challenges. The precision machining ensures proper alignment between your calipers and rotors, which is crucial for optimal braking performance and pad wear. Installation is straightforward if you're familiar with brake systems - just position the appropriate spacer between your caliper and mount, then secure with the provided bolts. The quality is exactly what you'd expect from Avid/SRAM - durable, precise, and built to handle trail vibrations and impacts. Great for bike builds, upgrades, or repairs where you need to fine-tune your brake setup. The set covers the most common rotor size combinations, making it a versatile addition to your workshop. Seriously, if you're tired of brake rub, poor lever feel, or compatibility headaches, these spacers provide the simple solution you need. Your brakes will perform better, your pads will last longer, and you'll spend less time adjusting and more time riding!