9/10/11/12 Speed 32/36/42/46T Road Bike Freewheel Cassette Sprocket Bicycle Replacement

Feature: 1. The shift will be smoother and quieter. 2. Perfect replacement of old flywheel, perfect operation, for best performance and maximum safety and life. 3. Suitable for mountain bike, bicycle, etc. 4. High pressure steel plate, nickel and chromium plating treatment. 5. Hollow design, weight reduction, super wear resistant steel. Specification: Condition: 100percent Brand New Item Type: Freewheel Material: chromium-molybdenum steel Color: as picture shown Speed: 9/10/11/12 Speed Option: 9S 11-32T, 10S 11-36T, 11S 11-42T, 12S 11-50T 9S 11-32T weight: 326g 10S 11-36T weight: 418g 11S 11-42T weight: 542g 12S 11-50T weight: 607g. Package List: 1 x Freewheel3 x Accessories Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.