SIER Adult mountain bike 26 inch 30 speed one wheel off-road variable speed shock absorber men and women bicycle bicycle,Red

Description

note:The bike was assembled 75% when it arrived. You only need to install front wheels, handlebars, pedals, seats and air tires. It is very easy to assemble it in 15-20 minutes.Please read the bicycle installation instructions in the package before installing the bicycle and adjusting the brake and speed system.When you are finished assembling your bike, check the bike to prevent damage to the bike and your safety by loose screws or other informal assembly. We hope that you can enjoy the assembly, but if you are not sure if you can complete the assembly, please ask a professional for help.Note: If you need to assemble a bicycle at your local bike store, we regret that we have not worked with any local bike store that can be assembled for free. So you need to pay the assembly fee yourself.Quality Assurance: If you have any questions, please contact us directly for assistance. We will do our best to solve the problem for you.