FREE DELIVERY OVER 99$
FREE DELIVERY OVER 199$
MY ACCOUNT
MY ACCOUNT
MY CART
MY CART
Lama Cycles - Bike parts distribution company
FREE DELIVERY
over 99$
FREE DELIVERY
over 199$
Absolute Black > Mountain chainrings > Oval narrow-wide > Absolute Black OVAL XTR M9100, XT M8100 & SLX Direct Mount 12sp HG+ chainring N/W
Absolute Black
 

Absolute Black OVAL XTR M9100, XT M8100 & SLX Direct Mount 12sp HG+ chainring N/W

Item#PriceStock
28T black
#: SHDMOV28BK
Price: $118.99
Stock: Available
SHDMOV28BK$118.99Available
30T black
#: SHDMOV30BK
Price: $118.99
Stock: Available
SHDMOV30BK$118.99Available
32T black
#: SHDMOV32BK
Price: $118.99
Stock: Available
SHDMOV32BK$118.99Available
34T black
#: SHDMOV34BK
Price: $118.99
Stock: Available
SHDMOV34BK$118.99Available
36T Black
#: SHDMOV36BK
Price: $118.99
Stock: Available
SHDMOV36BK$118.99Available
32T gold
#: SHDMOV32GL
Price: $118.99
Stock: Available
SHDMOV32GL$118.99Available
34T gold
#: SHDMOV34GL
Price: $118.99
Stock: Available
SHDMOV34GL$118.99Available
32T grey
#: SHDMOV32GR
Price: $118.99
Stock: Restock May 29, 2020
SHDMOV32GR$118.99Restock May 29, 2020
34T grey
#: SHDMOV34GR
Price: $118.99
Stock: Available
SHDMOV34GR$118.99Available


Overview

The Original one and only absoluteBLACK Premium, Shimano 12spd Hyperglide+ compatible Direct mount 1X Oval traction chainrings are designed for XTR M9100, XT M8100 & SLX M7100 cranks. They feature the exact same excellent oval shape as rest of our oval chainring portfolio. This new type of direct mount chainring will make your Shimano crank looking great and perfectly mesh with Shimano 12spd Hyperglide+ chain. This particular chainring will ONLY works with CN-M9100, 8100 & 7100 Shimano 12spd Hyperglide+ chain due to different thickness of the teeth.

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
The most advanced, Patent Pending narrow/wide tooth profile currently produced, guarantee minimum 12 months of excellent chain retention capabilities! We mean it. Always use a new chain with a new chainring.
Specs
  • Size (Mass +/-1g): 28T, 30T, 32T, 34T, 36T
  • Color: Black, Grey, Red, Goldatibility
  • 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.
  • Chainline: Perfect 51mm
  • Material: cnc machined 7075 Txxx Aluminum. Long-lasting construction!
  • Finish: type II anodizing
  • 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


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 

 
Why Oval

Why our oval chainrings work
Our traction Oval chainrings work because a rider does not produce power evenly through a pedal stroke; they maximize the part of the stroke where power is produced and minimize resistance where it isn't. Oval rings make the spin cycle a lot smoother and are easier on legs while climbing. Believe it (or not), but a round chainring doesn't transfer torque to your rear wheel as smoothly as an Oval one. You will actually feel your stroke to be more "round" with an Oval shape than with a round chainring.

Why it matters
Traction, Traction and Traction. With oval rings rear tire traction improves greatly on loose and slippery terrain. Smoother power delivery to your rear wheel means that you will be able to maintain better, constant cadence; get less stress on the joints (knees) and therefore be able to keep certain level of effort for longer. This results in higher average speed. Moreover, 11 studies made by various Universities in the World show that using oval chainrings human legs utilize more muscle groups (compared to round one), but each of them to lesser degree. Load from pedaling an oval chainring is spread over greater muscle mass which in effect gives you the feeling of fresher and more relaxed legs. It is world's finest oval chainring backed by tens of thousands of customers.
Technology
 
 
Word on BIOPACE
Please understand that this is not Biopace technology. Shimano created Biopace with the completely wrong orientation of the biggest radius of the oval. Instead of positioning it in power zone which is slightly below the level of the crank, they clocked it to the dead zone where human generates least power. The result was that in power zone pedaling was too easy and in dead zone very difficult. Exactly opposite to how it should be.

Round rings do not optimize the way humans produce power

Other elliptical chainrings
Clocking (timing) and shape of the oval are the most crucial parts of the design. Ride quality of Absoluteblack Oval ring will be different to ovals from brand X or Y. 2 years of development of our ovals resulted in commercially most successful product of its kind. AbsoluteBlack is the First company who managed to successfully popularize ovals in mountainbike sport. Please note: Other manufacturers offer one timing and ovality setting for all chainring sizes, but pedaling behavior changes with each size considerably. To optimize for this, every chainring size needs to be a bit different. For example the smaller the chainring size the bigger the ovality has to be to help climb steeper hills more effectively. This is where we specialize in and optimize every size to particular pedaling style. This is also why we do not provide information about timing and exact ovality of the chainring as each one is different.

 

The importance of timing and shape with oval chainrings
The oval chainring movement across all cycling disciplines is growing rapidly, led by absoluteBLACK, the world leaders in this important product category.

However, not all oval chainrings share the same performance characteristics as absoluteBLACK. The 'clocking' (timing) and shape of the oval are the most crucial parts of any oval chainring design, absoluteBLACK spent three years in design development and have perfected both timing and shape design elements - ensuring the ride quality of absoluteBLACK oval ring will be different and superior to ovals from other brands (as many abosluteBLACK customers already realised).

Where most other brands retain the same timing (position of the crank arm relative to the oval) and shape of the oval across all their sizes - because it's cheaper and less time consuming. absoluteBLACK believe that each different size ring requires a bespoke, optimised, perfect pedalling solution. So that is what we do - for every chainring absoluteBLACK make. For example, the smaller the chainring size, the bigger the ovality has to be to help climb steeper hills more effectively. We keep our exact Patent Pending data a secret, to ensure we get the best possible absoluteBLACK advantage over other brands, and you get the best possible ride experience.
Installation
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.

 
Chain options
12spd xtr9100, 8100 & 7100 Shimano 12spd Hyperglide+ chain only 

Chainguide needed?
No. But if you want one then chain guide should have 2 teeth more capacity than nominal oval ring size.
 
FAQ

What size should I choose?

  • 30T Oval chainring has an ovality of 28/32T and is best for someone who uses currently 28 or 30T round ring.
  • 32T oval ring will suit best someone who uses 31 or 32T chainring currently. While pedaling, you will feel quite similar effort to the one riding round 31T ring ( the smallest diameter of the oval is 30T), but you will gain the speed similar to riding 33/34T chainring.
  • 34T Oval chainring has an ovality of 32/36T and is best for someone who uses currently 33 or 34T round ring.


Frame clearance (biggest dimension of the oval tip to tip of tooth):

  • 30T: 134mm
  • 32T: 143mm
  • 34T: 151mm
 
It is ideal for 1x 10/11/12 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.
 
 
GET 5% OFF
ANYTHING YOU ORDER at regular price





Sign up to our Lama Talk newsletter and get your discount code. First timer only... Nice try ;-)
PenseWeb.com - Online order


MY ACCOUNT
MY ACCOUNT
MY CART
MY CART