RC enthusiasts, this FastEddy bearing kit is exactly what your Kyosho Raider needs for smoother, faster performance! The kit includes 6 bearings sized 4x8x3mm and 8 bearings sized 5x10x4mm - everything you need to replace the stock bearings in most Kyosho Raider models. These sealed bearings reduce friction dramatically, which means more speed and longer run times for your RC car. The quality is top-notch, with smooth rotation and solid construction that holds up to bashing and racing. Before you order, definitely double-check your specific model and any hop-ups you've installed, as bearing sizes can vary between different production dates and modifications. Installation is pretty straightforward if you're comfortable working on your RC vehicles. The difference in performance is noticeable immediately - smoother operation, less resistance, and better overall efficiency. Whether you're upgrading from old worn-out bearings or just want to maximize your Raider's potential, this FastEddy kit delivers professional-grade components at a reasonable price. Your Kyosho Raider will run like it's brand new again, maybe even better! Get ready for smoother drivetrains and happier bashing sessions.