Check the listing for details. ALUGEAR 1x GRX Chainring. Color: Black, Condition: New. Listed at 72.00 USD. ALUGEAR 1x GRX ChainringThe ALUGEAR 1x GRX Chainring is a 1x chainring for Shimano 11- and 12-speed GRX cranksets. It uses a unique tooth profile that helps eliminate chain noise, reduce wear and provide a more efficient drivetrain. It is machined from 7075 T6 aluminum and anodized to provide protection from impacts. This makes them durable and reliable in even the harshest off-road conditions. CompatibilityCrankset: Compatible with Shimano 11- and 12-speed FC-RX600, FC-RX610, FC-RX810 and FC-RXR820 cranksetsChain: These chainrings work with 10-, 11- and 12-speed Shimano HG+, SRAM, Campagnolo and KMC chains SpecsColor: BlackBCD: 110 BCD 4-boltSpeeds: 10-, 11- and 12-speedMaterial: Aluminum 7075-T6Made: CNC millingSurface coating: AnodizedWeight: 38T - 60 grams | 40T - 63 grams | 42T - 66 grams | 44T - 75 grams | 46T - 86 grams | 48T - 92 grams Why Buy from Power Meter City1. We ship fast! All orders ship on the same day your order is placed!2. Free shipping on all orders in the U.S.3. We are an authorized ALUGEAR dealer and this product comes with a full warranty.4. Expert advice and customer service in case you need any help.5. We offer a free, 30-day return policy on new items. About our CompanyAt Power Meter City, we focus on power meters and related accessories and components. Our focus on these products means we can offer you the best possible selection, advice and service.We have been in business since 2016 and are based in southern California. We are an authorized dealer of every product we sell.