SPATIAL 24/26/27.5/29 inch Mountain Bike,8/21 Speed Lightweight Aluminum Magensium Frame Mountain Bicycle,Fits Men Women Teenagers Adult Disc Brake MTB Bicycles

【Lightweight Aluminum Frame】 Built to last while keeping the overall weight manageable for easier handling and control on varied terrain. 【Smooth Gear Shifting】The 26 inch mountain bike is equipped with a 21 speed gear that offers a wide range of speed options for a flexible riding experience. 【26" x 2.10" Tires】These wider tires provide enhanced stability,a smoother ride over bumps,and superior grip on dirt paths,gravel,or pavement. Fits riders between 4'92"-5'5". 【Reliable Dual Disc Brakes】 Experience strong, consistent stopping power in all weather conditions wet or dry. Feel safer and more in control on descents and during sudden stops. 【Easy to Assemble】85% of the bike is already assembled. You will need 15-20 minutes to install the front wheel,handlebar,saddle,pedals and inflate the tires. Also you can find our assemble video for help.