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.
Size (Mass +/-1g): 32T (41g), 34T (44g), 36T (53g)
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
*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
Advantages of our special Direct mount chainrings:
- Finest design to provide excellent weight to strength ratio
- One of a kind special oval shape (Patent Pending)
- Unique Patent Pending narrow-wide teeth profiles to keep your chain in place for minimum 12 months!
- They 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 all
- Reduces stress on knees
absoluteBLACK warranties its products, when used under normal non-abusive conditions, to be free from defects in materials or workmanship for a period of 1 year from the original date of purchase. Any absoluteBLACK product that is found by absoluteBLACK to be defective in materials or workmanship will be repaired or replaced at the sole discretion of absoluteBLACK. (for HOLLOWcage please refer to the next question).
This warranty is expressly limited to the repair or replacement of a defective item, and said repair or replacement is the sole remedy of the warranty. This warranty extends from the date of purchase, is offered only to the original retail purchaser, and is not transferable. This warranty does not cover damage or failure resulting from accident, misuse, abuse, alteration, neglect, normal and reasonable wear & tear (chainrings are wear items), crash or impact, failure to perform routine maintenance as instructed, or use other than that for which the product was intended. It also does not cover fading or wearing of anodizing. In no event shall absoluteBLACK be liable for any loss inconvenience or damage, whether direct, incidental, consequential or otherwise resulting from breach of any express or implied warranty or condition of merchantability, fitness for a particular purpose, or otherwise with respect to this product except as set forth herein. Under no circumstance shall absoluteBLACK or its third party suppliers be liable for any direct, indirect, incidental, special, consequential or any other kind of damages. This written express warranty is in lieu of all other warranties, implied or expressed, and does not cover any representation or warranty made by dealers beyond the provisions of this warranty.