ZTTO Road Bike Freewheel 8/9/10/11/12 Speed MTB Cassette Cogs 23/25/28/30/32/34/36T Bicycle Sprocket variable speed gear

🌻🌻welcome to our store🌻🌻Material: SteelCompatibility:8-12 Speed road bike mountain bicycleRatios: 11-23T/25T/28T/30T/32T/34T/36T/40T/42T/46T/50T/52TWeight: about187-694gColor: silver, black-silverThe new highway flywheel, high-tensile steel plate nickel-chromium treatment, hollow design, reduce weight.You will get an assembled gear, and two small cogs separately and a lockring, that will make change cassette much simpler.Note*Color: Due to the light or display difference, the color of the product you received might be a little difference from the pictures. That is not a quality issue.*Size & Weight: Due to the measure error or insrumental error, the weight and size of the product might have a minor difference to the discription. That is not a quality issue too.*Service: We are professional bike mechanics and good at English, so if you have any problem when you set up your products, please feel free to contact us. If you need a large amout of products, please contact us too. We will give you a discount. Don't jump to a bad review, before you want to do that, just contact us and i think we will find a way to solve the problem.