Key benefits Reliable, precise 9speed freewheel that improves shifting control and reduces chain slips. Durable tensile steel cogs resist wear for longer service life. precision internal thread and smooth rotation deliver quiet operation and a tight hub connection for fewer adjustments and easier maintenance. Lightweight at 1.21 lb (19.3 oz) for minimal added mass. What it is and why you need it A 9speed freewheel designed to restore or upgrade drivetrain performance on compatible bicycles. The sprockets and shift ramps are engineered to guide the chain cleanly between cogs, reducing missed shifts and drivetrain frustration on rides. Specifications Speeds: 9speed Cog range and tooth count: 1332T — 131415171921242832T Weight: 1.21 lb (19.3 oz) Cog material: tensile steel Internal thread: precision machining for close hub fit, smooth rotation, and easy maintenance Performance features Unique sprocket design: Specially positioned shift ramps and tooth profiles improve chain control while shifting for more consistent, reliable gear changes. Quiet, smooth operation: Precision bearings and threading reduce noise and vibration during use. Low maintenance: Robust steel construction and tight thread fit simplify upkeep and prolong replacement intervals. Installation and compatibility Easy to install: Designed for straightforward fitting to compatible freewheel hubs; the precision internal thread ensures a secure connection and reduces play. Use with 9speed drivetrains that accept threaded freewheels; verify hub threading and spacing before installation. Typical applications Commuting and city riding: Smooth, reliable shifting for daily travel and stopandgo conditions. Club or weekend rides: Precise gear changes and durable cogs for mixedpace group rides. Maintenance or replacement: Direct swap to worn freewheels and restore drivetrain performance on compatible bikes. Care notes Regularly clean and lube the chain and cassette area to maximize shifting performance and extend cog life. Inspect threads and hub interface for proper engagement during installation.