Absolute Black Oval SRAM Boost 148 28T/30T/32T Chainring The Original one and only absoluteBLACK Premium Sram compatible Direct mount BOOST 1X Oval narrow wide chainrings are designed for GXP, DUB and Long BB30 spindle cranks. This chainring is dedicated for Boost bikes (3mm offset). They are 100-percent optimized for Eagle. It is the most Premium oval chainring on the market with scientifically proven performance gains. This oval chainring with 3mm offset converts any Sram crank into Boost specific setup. Boost and non-Boost Sram cranks are identical. All the offset is achieved by the chainring itself. Our regular OVAL chainrings for Sram cranks have 6mm offset whether this one has 3mm. Specifications Size (Mass +/-1g): 28T (50g), 30T (55g), 32T (59g) Color: Black Compatibility: SRAM AXS, XX1, XX1 Eagle, X01, X01 Eagle, GX Eagle, NX Eagle, SX Eagle, X1, X0, X9, X7, S2210, S1400, Descendant, Stylo, Truvativ AKA and all DUB cranks. Cane Creek eeWings. GXP and Long spindle BB30. BOOST148 bikes. 9, 10, 11 and 12spd Eagle compatible. Material: CNC machined 7075 Txxx Aluminum. Long-lasting construction. Mud optimized Finish: Type II anodizing Chainline: 52mm BOOST148 specific chainline. 3mm offset Ovality: Optimized to each size separately. Range: 10.2-14.4% and Timing of 110.5-116.3° after TDC (top dead center) Patent Pending If you wish to check for frame clearance with new oval ring, below you can find measurement of biggest dimension of the oval (tip to tip of tooth): 26T: 118mm ; 28T: 127mm ; 30T: 134mm ; 32T: 143mm ; 34T: 151mm ADVANTAGES OF OUR SPECIAL DIRECT MOUNT NARROW WIDE CHAINRINGS: *Finest design to provide excellent weight to strength ratio *One of a kind special oval shape (Patent Pending) *Greatly improves traction and climbing abilities *Unique Patent Pending alternate wide and narrow teeth profiles to keep your chain in place for minimum 12 months! *Special 3D teeth machining for ultimate mud relief decrease wear and noise dramatically *They save weight because they don't need the spider and chainring bolts. *The ability of installation of a smaller ring sizes that can't be mounted on regular spider. *Superb quality and great look. *You will ride faster using ovals. If you keep using round ring then others will get quicker. *You will not "feel" the oval shape at all *Reduces stress on knees *We mastered our oval chainrings to perfection, so you can get best possible advantage from the oval/elliptical shape. HOW TO MOUNT OUR OVAL CHAINRING TO SRAM GXP AND BB30 CRANK: You need to unscrew these 3 torx t-25 bolts from the crank. Then remove the spider+chainring combo you currently have there. Clean the splines and put some grease on them. Position the chainring in place (note there is only one way to fit this chainring to Sram crank, so you don't have to worry how to do it). Close all 3 bolts to about 5-7Nm. ✔ #originalbrand #readystock #100%new #genuine #authentic ✔ Delivered from Selangor ✔ Parcel delivery is arranged within 1-3 working days ✔ We are #ecocana a SSM registered company ✔ Retail/Repair/Showroom at Ecocana Sports, Gamuda Gardens Waterfront Village, Rawang Can buy from our official website: https://ecocanasports.com/absolute-black-oval-SRAM-boost-chainring?search=absolute Shopee: https://bit.ly/3Bsl2gA Lazada: https://bit.ly/3vYXdf2 Or direct to our physical shop at: Lg02, Waterfront Village, Gamuda Gardens, 48050 Rawang, Selangor Note: There will be cheaper price if buy in our physical outlet bundle with other items. Please call or whatsapp for more info: 017-234 2810