Inheritance and evolution of lightness 24LUVIAS [Self-weight (g)]: 145 [Wind-up length (cm/1 rotation of handle)]: 64 [Gear ratio]: 4.9 [Maximum drag force (kg)]: 5 [Bearing (ball/bearing)]: 9/1 [Standard thread winding amount PE (No.-m)]: 0.4-200, 0.5-170