Rev-Tech 100 cubic inch engine in black wrinkle. All components are made from new tooling in a modern state-of-the-art ISO 9000 manufacturing plant to bring to you the ultimate in high performance and reliability. RevTech's engineers designed these on sophisticated CAD equipment to incorporate the latest engine technology. Each engine comes completely assembled and is pre-run at the factory. Backed by a two-year, 20,000 mile limited warranty. Shipped in a custom wood crate, ready to bolt into your bike.