Search the EKN Classis site and you’ll find a ton of posts. But I couldn’t find a clear winner between Tri-Flow and grease. So it’s mostly up to you. I’d go with Ric’s suggestion. If you’re using brake cleaner, remove the bearings from the cart to save the paint. My suggestion is to replace the bearings when they feel and sound bad. I probably threw out some good bearings over the years, but there was a peace of mind.
LAD Specialties customer / tony kart / rotax / kt100