Single Speed Freewheel for Bicycle 16T 18T Rust Resistant

QUIET NIGHT COMMUTINGDesigned with an English thread interface, this cog guarantees a secure lock. Enjoy silent, friction-reduced rotations during quiet late-night commutes through neighborhood streets without disturbing anyone. UNIVERSAL BIKE COMPATIBILITYPerfect for parents upgrading a kids bicycle or commuters maintaining a folding bike, this single speed freewheel ensures smooth riding. It fits 1/2" x 1/8" chains for reliable daily city travels. PRECISE FIT DIMENSIONSCrafted from heavy-duty metal, this 136g to 157g sprocket features a 34 mm / 1.34" inner diameter, 15.5 mm / 0.61" thickness, and 69 mm / 2.72" (16T) or 77 mm / 3.03" (18T) outer diameter for a slip-free setup. EFFICIENT POWER TRANSFEREngineered with precise 16T and 18T gear profiles, this lightweight metal accessory optimizes pedaling torque on folding bicycles, minimizing energy loss for effortless uphill climbs and flat road cruising. STYLISH RUST PROTECTIONAvailable in sleek silver, classic black, and vintage brown metal finishes, this wear-resistant gear resists rust, allowing style-conscious urban riders to customize their single-speed road frames beautifully. Package list: 1x Single-Speed Freewheel