flywheel:18kgs,two-way,with protecting guard for handlegrip and shock absorber,safety braking system,full-active in design 1) Model no: AMA-912M 2) Article name: 18kgs of flywheel Commercial magnetic exercise bike 3) main body: silver N.W: 54 KGS G.W: 59 KGS 4) Assembly size: 126.5(L)*50.5(W)*109.5CM(H) 5) Flywheel: 18KG, 465mm, two-way6) Max.Load: 150KG7) Window display: scan, time, speed, ...