12x21 Rubber Sealed Ball Bearings 10 12x21x5 6801-2RS

Advantage Racing Precision Steel Ball Bearings All Ball Bearings are NOT created equal! In 2005, we tested a number of different bearing manufacturers, tolerances, and types of lubrication in order to find an optimal balance of performance, life, reliability, and price for R/C Racing Bearings. We did the testing so you don't have to! The resulting bearings are OUTSTANDING, and over 100,000 bearings have been sold (under CRC Racing and Advantage Racing brands) to satisfied racers all over the world! These Ball Bearings have been trusted and run by some of the fastest racers in the US, including Andrew Smolnik, Jason Branham, Derek Weatherholt, and Gene Hickerson, and the list is growing! Rubber Sealed Ball Bearings have maximum protection, and are ideal for off-road racing. They protect well against exposure to dust, dirt, and moisture, which can destroy bearings. These bearings offer maximum protection at the cost of a bit of resistance. Use these bearings in areas where exposure to dirt, dust, and moisture is likely (wheel hubs, outdrives, etc)