This particular 104bcd oval chainring will ONLY work with CN-M9100, 8100 & 7100 HG+ 12spd chain due to different thickness and shape of the teeth. absoluteBLACK Premium 1X 104bcd Oval traction narrow wide chainrings are designed for any cranks that use 104bcd mounting interface. In particular suited for power meters.

Advantages of our Special Oval 104bcd narrow wide chainrings:

• 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
• Superb quality and great look. 
• You will ride faster using ovals. If you keep using round ring then others will get quicker.
• You will ride faster using ovals. If you keep using round ring then others will get quicker.
• Reduces stress on knees

How to mount 104bcd Absolute Black Oval narrow wide chainring:

There is a small mark (triangle shaped) on the inner circumference of the chainring. This mark must sit behind the crank arm.

Don't know what bolts to use with 32T oval chainring with integrated threads?

They are standard bolts. You can use a granny ring bolts (from 64bcd chainring) or use the ones that connect middle and big ring from 3X crank. You can also buy them from us in Bolts tab. Pick "Long" ones. Other sizes like 34 and 36T use "short" bolts.

• Size : 32T (41g), 34T (44g), 36T (53g)
• Colour Options : Black
• Compatibility : All cranks with 4x 104BCD interface. That means all 104bcd power meter spiders, Shimano XT / Zee / Deore / SLX / XTR, Race Face Sixc, RF Ride, RF Chester, RF Respond, FSA, E13 and many more. ONLY Shimano 12spd HG+ chain
• Material : CNC machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing
• Chainline : 32T - 48.5mm ; 34&36T - 50mm
• Mounting Holes : 4 x 104mm BCD (for 32T ring, bolts should be min 6mm long)
• 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
• Chain Options : 10, 11 or 12spd chain for geared bike or 6-8 spd one for SS (1/8" also fits). If used in 1x9 drivetrain - 10spd chain must be used to obtain the performance. (yes - 10spd chain will work great on 9spd cassette)
• Chainguide needed : No. But if you want one then chain guide should have 2 teeth more capacity than nominal oval ring size.

Important :

32T chainring has build-in 2mm spacers and threaded holes (M8x0.75) to accommodate this size on spider. Other sizes have regular 10mm holes. 

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):

• 32T: 143mm ; 34T: 151mm ; 36T: 159mm