TA Syrius 10/11 Speed Chainring 110mm BCDDelivering a high-end, modern performance from a classically manufactured design, this TA chainring is equipped with traditional lathe-cut teeth for more precise chain retention. Cut from strong 7075 T6 heat-treated alloy for enhanced drivetrain longevity and increased power transfer, this is a superb addition to any hard-working 10/11 speed MTB setup.Features: Material: 7075 Alloy T6 heat-treated Speed: 10/11 speed BCD: 110mm Less friction more wear resistance Laser Engraved Anodised and polished finish for long life & corrosion resistance Smooth shifting Marked to indicate correct chainring orientationBuy TA Components from Chain Reaction Cycles, the World's Largest Online Bike Store.