Brake Roller / Speed Controller Dia.:80mm,92mm,120mm Material: nylon, zinc- ... professional Brake Roller manufacturers in China.Brake Roller Series: Dia.:80mm, 92mm, 120mm, TandemMaterial: nylon, zinc-platedLoad ... operation up to 1500kg capacity. We have Dia. 80mm, Dia. 92mm, Dia. 120mm and tandem models for different installation ... have any question or need samples! Dia.92mm Brake Drum Brake Roller