If you're into RC crawling with your Redcat Ascent-18, these brass differential covers from FSDKEDUF are a solid upgrade. Made from heavyweight brass, they add durability where it counts - protecting your axle gears from impacts and wear. The corrosion-resistant coating means they'll hold up well even if you're driving through wet or muddy conditions. At 16.7 grams each, they add some beneficial weight down low, which improves stability and crawling performance by lowering the center of gravity. They're specifically designed for the Ascent-18 micro crawler, so the fit is precise - no modifications needed. Installation is straightforward if you're comfortable with basic RC maintenance. The black finish looks clean and professional on your rig. Whether you're tackling technical trails or rock courses, having that extra protection for your differentials can save you from costly repairs down the line. They're one of those upgrades that both improves performance and protects your investment. If you're serious about getting the most out of your Ascent-18, these are definitely worth considering for your build.