TK-90B ·For training and competition in circuits ·Amelioration type of model TK-90 ·Chassis: ?30 seamless tubular steel ·Dimension(㎜):1780(L)×1220(W)×545(H) ·Mechanical disc brake system ·Rear axle ?30 ·2 axle bearings ·Tires: front 10×3.6-5 rear 11×6-5 ·Weight: ～88.5kg ·Engine: Nanfang YAMAHA 1E50FM
