Samix FCX24 +6mm Brass Hex Adapters are an optional accessory and great way to add a bit of low hung un-sprung weight to your FCX24 for improved stability. Plus, the 6mm thickness increases track width up to 6mm.
Features: Brass hex adapters add 5g for 4pcs Better center or gravity and forward weight bias for climbing 6mm thickness Made of high quality CNC machined brass Direct fit standard FCX24 Black coating to help prevent corrosion