Lightly used Model: GARBARUK Chainring for Shimano GRX * BCD: '110 mm' (4-bolt asymmetrical) * Shape: Oval * Ovality: 12% * Timing: 108° after TDC (Top Dead Center) * Tooth Profile: Narrow-Wide * Crank Compatibility: Shimano GRX RX810 & RX600 * Chain Compatibility: Compatible with all 9s, '10s', '11s', and 12-speed chains (including Shimano HG+ and SRAM AXS Flattop) * Recommended Use: Gravel cycling, Cyclocross (CX), Adventure Biking