Shimano XTR M9000 Chainrings

Premium 1X Oval 96bcd traction chainring designed for Shimano XTR M9000 and M9020 cranks only, featuring the same oval shape as our very popular direct-mount oval chainrings. NOT compatible with XT M8000 cranks (see XT M8000 Chainrings here). Size (Mass +/-1g): 30T (44g), 32T (53g), 34T (63g) Color Black only Compatibility? Fits only Shimano XTR M9000 and M9020 cranksets Material CNC machined 7075 Txxx Aluminum Finish type II anodizing Mounting holes 4 x 96mm bcd asymmetrical spider design. Use original M7 bolts only Ovality Optimized per individual chainring size. Range: 10.2-14.4% and Timing of 110.5-116.3 after TDC (top dead center) Patent Pending   All 3 sizes have built-in M7 threaded holes with offset to optimize and improve your current 1X chainline by 1mm. You can only use original Shimano M7 bolts with these chainrings (supplied with crank). Advantages of our XTR M9000 oval chainrings: Finest design to provide excellent strength to weight ratio Patent-Pending oval shape Unique Patent Pending narrow-wide tooth profiles to keep your chain in place even in aggressive conditions Special 3D teeth machining for ultimate mud relief, decreased wear and noise Designed to handle the rigors of mud and grass Lower weight by reducing the need for a spider and chainring bolts All our M9000 oval rings have built in threads for ease of mounting and weight reduction Superb quality and look. Riders will not "feel" the oval shape Improves traction and climbing abilities Reduces knee stress How to Mount absoluteBLACK Oval Chainrings to XTR M9100 Cranks There is a small mark (triangle shaped) on the inner circumference of the chainring. This mark Must sit behind the crank arm. It is ideal for 1x 10/11/12spd and Singlespeeds. Oval (elliptical) chainring does not compromise the work of clutch mechanism in rear derailleur(video at the bottom). It also does not require chain tensioner when using in singlespeed application. Riding out of saddle on the uphill will become more pleasant. Ovality of the chainring is in range of 10-14% (dependent on size) and feels perfectly round when riding. These chainrings also help you to recover after knee injuries as pedaling becomes smoother and less exhausting. It is the most advanced oval chainring currently on the market. Chain options 10, 11 or 12spd chain for geared bike or 6-9 spd one for SS (1/8" also fits).  Chainguide needed? No. But if you want one then chain guide should have 2 teeth more capacity than nominal oval ring size.   Designed in UK. Manufactured in Poland (EU). The World's best Shimano oval chainring. The most advanced, Patent Pending narrow/wide tooth profile ever produced, guarantee minimum 12 months of excellent chain retention capabilities! We mean it. Always use a new chain with a new chainring.