Features: This freewheel is made of high quality metal material, high strength, anti-rust, non-deformation, wear-resistant and durable. Hollow out design reduces much weight to lessen the burden of long time cycling. It can promise smooth rotation of chain, suitable for chain ring of 28T/32T/34T/36T. Designed for 11 speed bike. Easy to install and use. Specification: Brand: ZTTO Condition: 100% Brand New Item Type: Bike Freewheel Material: Metal Color: Colorful Optional Style: 28T, 32T, 34T, 36T Speed: 11 Speed Cassette Compatible: with Bike HG System Gear Ratio: 11-28T: 11-12-13-14-15-17-19-21-23-25-28T 11-32T: 11-12-13-15-17-19-21-23-25-28-32T 11-34T: 11-13-15-17-19-21-23-25-28-31-34T 11-36T: 11-13-15-17-19-21-23-25-28-32-36T Size: Approx. 10 x 10 cm / 3.9 x 3.9inch Weight: Approx. 244-354g Package List: 1 x Bike Freewheel
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