The Tbest 37t Rear Sprocket is a versatile and durable component designed specifically for OE replacement direct fit applications in 50 pit bike chains. Made from high-carbon steel, this sprocket offers excellent performance, durability, and precision. Its 76mm diameter and unique 37t design make it an ideal fit for most 37t chainrings, ensuring a smooth and reliable shifting experience. With its robust construction and precision ground teeth, the Tbest 37t Rear Sprocket is a perfect fit for riders who demand reliability and durability in their drivetrain.