Bicycle Specification Frame:19”Aluminum Frame Fork:MTB Suspension Fork Tire:29”*1.95 full balck tire Rim:3 Spoke Mag Wheels Brake:Disc Brake F/Derailleur:TX-30 R/Derailleur: TZ-50 Shifter:3*7 Freewheel:7 plus weight:35lbs Package weight:40lbs fits up to:5'8"-6'4” Maximum weight capacity: 300 lbs About install: 1.This bicycle arrives 85% assembled. You will need to install the pedals, front wheel, handlebar and air up the tires. 2. Rotate the fork for 180 degree before assemble the front wheel (the brake will be in front of the bike) 3. Pedal threads are different from left side and right side. L / R signs are marked on the spindle of the each pedal, make sure they are assembled on the right side (when you ride on the bike, left pedal on your left hand, right pedal on your right hand). The right side pedal has a right-hand thread. Thread both pedals into the crank arms as far as you can by hand. 4.All tools are included in the package,no extra tools Contact us: No matter there have any questions please contact us at the first time.Thank you!