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Absolute Black Shimano DM Oval Chainring: Designed to fit Shimano XTR M9100 , M9120, XT M8100, M8120, M8130 , SLX M7100, M7120, M7130 and FC-MT900 cranksets.
- Works ONLY with CN-M9100, 8100 & 7100 chain
- Oval rings help the rider spin smoother and generate more power
- 32t is equivalent to 30t at deadspot and 34t at the power zone
- Narrow-wide tooth profile keeps the chain snug, allowing you to leave the chain guide behind
- Designed in UK, manufactured in Poland
- It's a Direct Mount chainring so please use original lockring to mount it on the crank. Always use a new chain with a new chainring
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):
28T: 127mm ; 30T: 134mm ; 32T: 143mm ; 34T: 151mm
Advantages of our special oval chainrings for Shimano XTR M9100 :
*We mastered our oval chainrings to perfection, so you can get best possible advantage from the oval/elliptical shape.
*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 narrow-wide 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
*All rings have built in threads for easy of mounting and reduction in weight
*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
How to mount Absoluteblack oval chainring to XTR M9100 Shimano 12spd Hyperglide+ crank:
Using Hollowtech II BB Removal Tool (like BBB BTL-116 ), carefully open the lockring that holds the chainring on the crank(normal threads). Once the lockring is removed, take off old chainring, re-grease the splines on the crank. Place new oval chainring with convex side to the crank. Chainring/crank has special splines that only fit one way. Close the lockring to 35-50Nm of force. Chainring is only compatible with XTR CN-M9100 chains. Using other chains may cause chain to drop very easily from the chainring due to thinner than usual teeth.
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Specs & Information
- Size (Mass +/-1g): 28T, 30T, 32T, 34T, 36T
- Compatibility - Fits to Shimano XTR M9100 , M9120, XT M8100, M8120, M8130 , SLX M7100, M7120, M7130 and FC-MT900 cranksets. Works ONLY with CN-M9100, 8100 & 7100 Shimano 12spd Hyperglide+ chain.
- Material - cnc machined 7075 Txxx Aluminum. Long-lasting construction! Type II anodizing
- Chainline - Perfect 51mm
- 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
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