High end MTB chainring. Built for toughness and durability, the RoundAbout 4 retains a lightweight and exceptionally smooth feel, guaranteeing maximum riding comfort. Its unique teeth design simplifies gear changes, ensuring you're always ready to harness your full power. Features: - With special shifting pins. - Compatible with Shimano and SRAM. - CNC machined 7075 T6 aluminium. Part Number: 2909690742, 2909690744 Barcode: 8716683019438, 8716683019445 Product Code: BBB BCR-07