Our factory produces high-quality 163010-2RS, 163110-2RS, and 163110 bearings suitable for bicycles. These non-standard deep groove ball bearings have dimensions of 16mm inner diameter, 31mm outer diameter, and 10mm thickness. They are made from durable materials that ensure long-lasting performance. Our products are of superior quality and have been extensively tested to meet all industry standards. As a factory, we have strict quality control measures in place to ensure that our customers receive only the best quality products. You can trust us to deliver excellent products that are perfect for use in your bicycles. Contact us today to place your order.