Product Specification: Mainly made of durable steel. Single speed bicycle freewheel 16 teeth design. Suitable for 1/2" x 1/8". - Specification: - Material: Steel - Outer teeth diameter: 69mm - Thread Inner diameter: 34mm - Thickness: 15mm Package Includes: 1 Piece 16T Single Speed Freewheel REMINDER ! ! ! STRICTLY NO CANCELLATION ! ! ! Items are available until marked as SOLD OUT. Items are 100% Brandnew. If there is any complaints, questions, suggestions, requests, etc., about the item/s kindly message our shop. We accept RETURN/REFUND if items are not used.