Key features

• •EXTRA GRANNY COGS FOR EVERYONE! - Bring the 1X experience of 11 or 12 speed to 8 speed. Now you can convert the bike of your wife or kid to 1X. Shifting will be much easy and simple to your loved ones!
• •WIDE GEAR RATIO. - 11t 13t 16t 20t 24t 28t 34t 40t. Compatible with standard cassette freehub, not compatible with freewheel system.
• •HIGH QUALITY, BUT LOW PRICE. - All the cogs are made from high-tensile steel, extremely durable and hard to break. Offers same level of performance with much more expensive products, but only cost a small fraction of the price.
• •FREE REAR DERAILLEUR HANGER EXTENSION- Comes with free rear dereailleur hanger extension.
• •SHOP WITH CONFIDENCE. - Our Cassette Have One Year Warranty, If You Met a Quality Defect Product, You Can Contact Us to Get a Refund or Replacement.