Timing chain for motorcycle engine and auto engine. Model:25-1,25-2,25H-1,25H-2,270H,05B,06B-1,06B-2 Color:blue,yellow,natural Timing chain for motorcycle engine and auto engine.Model:25-1,25-2,25H-1,25H-2,270H,05B,06B-1,06B-2Color:blue,yellow,natural