The Tower Hobbies RC Engine ABC Size 75 without muffler is a 2-stroke engine designed for RC model vehicles. It is compatible with Tower Hobbies products and runs on nitro and glow fuel. This engine is suitable for advanced hobbyists aged 17 years and up, and operates at a 1:5 scale. Perfect for enthusiasts looking to upgrade or replace their current engine, this Tower Hobbies RC engine offers quality and performance for a variety of RC vehicles.