Hey RC enthusiasts! If you're running a Team Losi Tenacity-T 4WD RTR, this FastEddy bearing kit is exactly what you need to keep your ride smooth and fast. This complete sealed bearing set includes everything you need: (4) 5x8x2.5mm, (4) 5x11x4mm, (4) 6x12x4mm, (4) 10x15x4mm, and (6) 12x18x4mm bearings. These sealed bearings are perfect for keeping dirt and debris out while maintaining buttery smooth rotation. Seriously, if you're tired of worn-out bearings slowing you down or causing unnecessary friction, this kit will have your Tenacity-T running like new again. The quality is top-notch - way better than those cheap no-name bearings that fail after a few runs. Installation is straightforward if you're comfortable with basic RC maintenance. Just remember to double-check your specific model before ordering since bearing sizes can sometimes vary depending on manufacturing dates or aftermarket upgrades you've installed. These bearings make a noticeable difference in performance - smoother rotation, less resistance, and better overall speed. Whether you're bashing around the backyard or hitting the track, reliable bearings are crucial for keeping your RC car performing at its best. Trust me, your Tenacity-T will thank you with smoother operation and longer component life. One of those upgrades that seems small but makes a huge difference in how your RC handles and performs!