6903 LLB 17x30x7 Bearing ABEC3 6903 LLB 17x30x7 Bearing ABEC3 Sizes: 17x30x7 Price: 230 ฿ Brand: Enduro Bearings Model: 6903 LLB Quality: ABEC 3 Size (ID x OD x width): 17x30x7mm