The Wolf Tooth 110 BCD 4-arm chainring for Shimano GRX is not only beautifully machined and super lightweight, but also features a patented, Narrow-Wide design that is perfect for 1-speed setups.This Wolf Tooth 110 BCD chainring is specifically designed to work perfectly with Shimano GRX drives and prevent chain loss even in the roughest terrain.In keeping with Wolf Tooth's guiding principle of providing unmatched design innovation, reliability and durability, this chainring uses a patented Narrow-Wide Drop-Stop tooth profile that not only keeps the chain securely in place on 1-speed chainrings, but also displaces mud and debris more efficiently.Wolf Tooth chainrings are manufactured with the highest quality standards at the company's headquarters in Minnesota, USA. The anodized finish and engraved lettering that adorn each chainring bear the hallmark of mastery.The Wolf Tooth 110 BCD 4-arm chainring for Shimano GRX is ideal for demanding cyclists who are looking for the perfect 1-speed setup and want to outlast their competitors. - Details: - The drop-stop FT tooth profile is compatible with 9-, 10-, 11- and 12-speed chains (including SRAM Flattop) - Not compatible with Shimano HG+ 12-speed chains - Range of application: road bike rear derailleur - Gear ratios front: 1-speed - Gear ratios rear: 9-speed chainrings - Mounting / number of holes: 4 screws - Bolt circle: 110 mm Main information - Compatibility: himano GRX RX600 and RX810.