This BUCKLOS 110BCD chainring fits all standard cranks with 4 bolts, 110 mm discs, has high strength and durability, and is made of aluminum alloy and fully CNC machined.Provides superior rigidity, lightweight, durability and high performance Compatible with Dura-ace R9100, Ultegra R8000, 105 R7000, R8000, R9200, etc.; Sharp cutting edge teeth to increase bite force with the chain, improve riding efficiency and reduce wear. Bike 110BCD 50-34T Double Chainring: Brand: BUCKLOS Bolt Center Diameter: 110mm BCD Teeth: 50-34T Material：AL7075 Aluminum alloy Color: Black Shape: Round Compatible with: 10/11/12 Speed Applicable：Road Bike Type：Double speed chainring Weight: 34T:About 33.6g 50T:About 114.4g Package Included:34T 1PC Chainring+50T 1PC Chainring +（8.5mm Bolts 4PC） Compatible Model：Dura.
