FR-4 - Freewheel Remover: Atom, Regina, Zeus

Park Tool Fr-4 Cassette Lockring Tool. Tackle stubborn freewheels with confidence using the Park Tool FR-4. This precision-machined tool, crafted from heat-treated alloy steel, ensures durable and damage-free removal of older Atom®, Regina®, splined Zeus®, and some Schwinn®-approved freewheels. Its thin-wall design often eliminates the need to remove axle cones, streamlining your maintenance. With 20 splines and a secure one-inch base for leverage, the FR-4 is an essential for any drivetrain service. This high-quality, well-made freewheel remover tool offers excellent value. It performs perfectly, ensuring easy disassembly. A precise fit, this tool works flawlessly with Atom, Atom77, and Regina freewheels and sprockets. It is highly recommended for vintage and antique racing bikes from the 60s, 70s, and 80s, getting the job done without problems. Park Tool FR-4 Freewheel RemoverCategory: MaintenanceSubcategory: Transmission ToolsAttributes: CassettesUnlock the ability to expertly service, replace, or upgrade specific drivetrain systems with the Park Tool FR-4 Freewheel Remover. An essential component for any serious home mechanic or professional bike workshop, this precision-engineered tool is designed specifically for removing older or particular models of freewheels, ensuring you have the right fit for the job. Trust in the legendary quality of Park Tool to perform delicate transmission work with confidence and precision.The FR-4 is built for a lifetime of use, precision-machined from high-grade, heat-treated alloy tool steel for maximum strength and durability. This robust construction prevents rounding or stripping of the delicate splines on your freewheel, protecting your valuable vintage or specialty components during removal. Its thoughtful design includes a one-inch base that provides a secure, stable interface with a large wrench or a bench vise, allowing you to apply the significant torque often required to break loose a stubborn freewheel.One of the standout benefits of the FR-4 is its efficient thin-wall construction. This clever design allows the tool to be used in many cases without the need for the time-consuming removal of axle cones and locknuts, getting you to the core of your maintenance task faster. Whether you are performing a deep clean, replacing a worn-out freewheel, or upgrading your gearing, the FR-4 streamlines the process, making it a valuable and time-saving addition to your collection of transmission tools.--- Key Features & Compatibility:This specialized tool is designed to provide a perfect fit for a select range of freewheel systems, making it indispensable for restorations and specific maintenance jobs.* Fits Atom®, Regina®, splined Zeus®, and some Schwinn®-approved freewheels.* The FR-4 has 20 splines and is approximately 21.6mm in diameter, ensuring precise engagement.* The center bore for axle clearance is 10mm, accommodating a wide range of compatible axles.--- Technical Specifications:* Material: Heat-Treated Alloy Tool Steel* Tool Interface: One-inch base fits a wrench or bench vise* Design: Thin wall construction allows use without removal of cones and locknuts on many hub models* Spline Count: 20* Outer Diameter: ~21.6mm* Center Bore: 10mm. tradeinn Bikeinn

Can also be used with an adjustable wrench or bench vice Thin wall construction allows use without removal of cones and locknuts Thin wall construction allows use without removal of cones and locknuts