AbsoluteBlack Narrow Wide Direct Mount Oval Chainring CX for Sram Cranks 12 S Black

The AbsoluteBlack Narrow Wide Direct Mount Oval Chainring CXis designed for Sram cranks where the spider can be replaced by a direct mount chainring. The perfect choice for Cyclocross and Gravel with Sram cranks. This is the most premium oval chainring on the market with scientifically proven performance gains.Oval chainrings don’t produce more force, they increase pedaling efficiency through better transmission of forces. This means that you won’t necessarily go further by pedaling harder. But the less force you lose, the more energy you keep, allowing you to pedal harder when you need to and thus reducing your general fatigue. That’s why you can ride faster, longer and further with oval chainrings.Studies conducted by the University of Primorska, Slovenia, show significant differences between the use of AbsoluteBlack Oval chainrings and conventional round chainrings. It is proven that using an oval chainring can provide up to a 9% increase in pedal stroke efficiency, up to 7% less oxygen consumption, 15% less breathing and up to a 10% decrease in heart rate.Details : Weight: 36T( 89 g), 38T( 94 g), 40T( 104 g), 42T( 111 g), 44T( 112 g), 46T( 123 g), 48T( 125 g) Color : Black For 10 / 11 / 12 speed. Designed in the UK. Made in Poland (EU). SRAM cranks compatibility: Force 22, Force 1, CX1, Rival 22, Rival 1, S900. GXP and BB30 models. Also suitable for SRAM XX1, X01, X0, X9, X7, S2210, S1400 GXP, DUB and BB30 models. Material : CNC machined 7075 Txxx aluminum. Long life construction. Type II anodized finish Ovality : optimized for each size separately. Range: 10.2-12.1% and 110.5-112.3u00b0 after TDC (top dead center) Patent pendingIf you want to check the frame clearance with the new oval ring, you will find below the measurement of the largest dimension of the oval (from the tip to the tooth tip): 36D : 159 mm; 38T : 168 mm; 40T : 176 mm; 42T : 184 mm; 44T : 193 mm; 46T : 201 mm; 48T : 210 mmADVANTAGES OF OUR DIRECT MOUNT OVAL CHAINRINGS : The most advanced patent-pending tooth profile guarantees a minimum of 12 months of excellent chain retention capabilities. Thinnest design for excellent strength to weight ratio. The oval chainring does not compromise the operation of the rear derailleur clutch mechanism. It also does not require a chain tensioner when used in single speed. Unique special oval shape (patent pending) Unique narrow and wide tooth profiles (patent pending) to keep your chain in place for at least 12 months! Special 3D machining of the teeth for ultimate mud relief, significantly reducing wear and noise. Designed to handle mud and grass with ease. They save weight because they don’t need the spider and deck bolts. Superb quality and great looks. You will ride faster using ovals. If you continue to use round rings, the others will become faster. You won’t feel the oval shape at all. These chainrings also help you recover from knee injuries, as pedaling becomes smoother and less strenuous. Riding uphill out of the saddlewill become more enjoyable.HOW TO MOUNT THE CX OVAL CHAINRING ON THE SRAM CRANK :Remove the crank from the bike. Unscrew these 3 t-25 torx bolts from the crank arm. Then remove the spider + chainring combo you currently have. Clean the splines and put some grease on them. Position the chainring in place (note that there is only one way to mount this Sram chainring, so you don’t have to worry about how to do it). Tighten the 3 bolts to about 5-7 Nm.* Always use a new chain with a new chainring.