Insight BMX is expanding our parts line. Along with the addition of our mini pivotal seats and post last month, we are now offering 4 Bolt Chainrings. These are a great addition to the rapidly growing Insight parts line, offering you a reliable, Elite level product at an excellent price. Features include: 4 Bolt – 104 BCD 5mm thickness for added strength Black Anodized with laser etched graphics Sprocket size stamped on rear of gear 37 – 44 tooth sizes offered