Looking to freshen up your OS .21 TM engine? This FastEddy sealed bearing kit is here for you. The kit includes two high-quality bearings: one for the front (size 7x19x6) and one for the rear (size 12x21x5). FastEddy is known for making some of the best bearings out there for RC applications. Each bearing comes with two rubber seals. Now, a pro tip: depending on your specific engine setup and how you run it, you might want to remove one or both seals for better lubrication flow or less friction. It's super easy – just slide a thin knife tip or needle under the seal's edge and pop it off. We recommend checking the old bearings you're replacing to see how they were set up. SUPER IMPORTANT: Before you order, please double-check the bearing sizes needed for your exact model of OS .21 TM engine. Sometimes sizes can vary based on manufacturing date or aftermarket hop-ups you've installed. We try to keep our kits accurate, but it's always best to verify. If you find our kit doesn't match your needs, just let us know and we'll sort it out. Get those smooth, high-RPM spins back!
