Check the listing for details. AbsoluteBlack Oval Boost 148 Direct Mount Chainring for SRAM (PVD Rainbow). Color: PVD Rainbow, Condition: New. Listed at 143.00 USD. Extra items shipping charge is 50% discount of single item. Check out our store to buy more and save more. For example: Original Shipping Charge (USD) Combined Shipping Charge (USD) Item 1 Item 2 Item 3 10 20 30 5 10 30 Total 60 45 eBay doesn’t support automatic combined shipment calculation. Buy more items and let us know. We will adjust the shipping cost upon your request. AbsoluteBlack Oval Boost 148 Direct Mount Chainring for SRAM (PVD Rainbow) 28T,30T,32T,34T,36T Description: The Original one and only Premium absoluteBLACK Sram compatible Direct mount BOOST 1X Oval narrow wide chainrings in PVD Rainbow (oil slick) colour. Designed for GXP, DUB and Long BB30 cranks. This special PVD Rainbow Titanium coating process makes the chainrings very durable and incredibly beautiful. It is the most Premium oval chainring on the market with scientifically proven performance gains. NOTE: Due to the nature of PVD process, every chainring is unique and color may vary. Not a single chainring is the same which makes your new ring completely individual. You can indicate to us, in comments section during the checkout, if you prefer more gold-purple or more blue/green-purple, but we can not guarantee to meet your request. 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 ratioOne of a kind special oval shape (Patent Pending)Greatly improves traction and climbing abilitiesUnique 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 dramaticallyThey 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 allReduces stress on kneesWe 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, DUB 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. SRAM, GXP, Eagle and XX1 are trademarks of SRAM LLC and are used for informational purposes only. Specifications: Brand: AbsoluteBlack Size (Mass +/-1g): 28T (50g), 30T (55g), 32T (59g), 34T(66g), 36T (74g) Color: PVD Rainbow (oil slick) 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: Physical Vapour Deposition 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 About Us Thousands of sport products were sold to customers around the world. Over 99% of positive feedbacks. We are improving inventory level and shipping speed which are the primary reasons that we cannot hit 100% positive. We sell only real and authentic products. Sometimes, our item price is low because of stock clearance. Be confident. No fake product from Cyclingvelo!! Payment Method We accept PayPal only. Paypal provides premium protection to buyers. Shipping Method We ship items via air parcel service with tracking numbers. Shipping time is depends on your location. In some cases, it will be longer if customs need to check your parcel. Please contact us if you have problem. Taxation Some countries might require import tax. It is customer’s responsibility to pay the import tax. If you need a special invoice for declaration, please let us know. Resolving problems If your item hasn't arrived yet, check the estimated delivery date on the Order details page to determine when your item should arrive. Then track your package. If the estimated delivery date has passed and the item didn't arrive, please check with your local customs, mail office, mail box or your neighbor firstly. Sometimes, you parcel is delivered to family member but they forget to tell you. If the item doesn't match the listing description, just let us know. We are happy to resolve problem with customers. Working days Monday to Friday 9am to 5pm GMT+8. Holidays Please understand that public holidays in Asia is different from other countries. If you found that we are not response promptly, please check out whether we are enjoying holidays.