material: steel full suspension size wheel: 20" suitable for 20" mountain bike wheels frame size: 13.5" (measured from the top of the seatpost tube-middle of the bottom bracket) head tube diameter: 1"(suitable for 1" forks, see our amazon shop) head tube length: 100mm suspension unit: 650lbs per inch v-brake compatible not disc brake compatible not suitable for pannier racks no mudguard eyelets suitable seatpost: 25.4mm (available in our shop) weight: 3.56kgs colour: green and black please be advised this stock is perfectly functional/useable but in some cases it may be scratched/marked/soiled due to it being ex factory production stock and therefore in many cases unboxed.