OVAL 104BCD Chainring for 12spd Shimano Hyperglide+ chain
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absoluteBALCK Oval 104bcd chainring is specifically designed to work with Shimano CN-M9100, 8100, 7100 & 6100 12spd Hyperglide+ chain due to different thickness and shape of the teeth. These chainrings are designed for any cranks that use 104/4 bcd mounting interface, in particular for power meters. Super smooth pedaling sensation. It is the most Premium oval chainring on the market with scientifically proven performance gains.
" The oval rings continue to impress me and have made a genuine difference to my riding particularly as suffer from osteoarthritis in both knees. There does not seem to be as much stress on my knees and they don't ache when I have completed my rides. I am super impressed!"
" I had my AB chainring installed last week and after few hours of pedaling, boom, it hit me. This chainring made a big difference. My knees didn’t hurt, I felt faster on flats and uphill. "
" I’ll never go back to round. Super smooth, eased my knee pain, and has helped my climbs on technical ascents ten fold."
" Initially, reluctant. However, after riding my 29er I was very impressed with the power distribution and no knee pain. AB undoubtable got it nailed. You won't even know your are riding an OVAL after 15 minutes time."
" Super pleased with the overall look and performance of the chainring. I can 100% say that it does improve my pedaling while climbing and getting through rough uphill stuff. Each pedal stroke is now more fluid and cadence is better on those longer climbs."
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Size (Mass +/-1g): |
32T (41g), 34T (44g), 36T (53g) |
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Color |
Black |
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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 |
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Material |
cnc machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing |
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Chainline |
32T - 48.5mm ; 34&36T - 50mm |
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Mounting holes |
4 x 104mm BCD (for 32T ring, bolts should be min 6mm long) |
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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 |
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
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 not "feel" the oval shape at all
*Reduces stress on knees
How to mount 104bcd Absoluteblack 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.
Oval (elliptical) narrow wide chainring does not compromise the work of clutch mechanism in rear derailleur. It also does not require chain tensioner when using in singlespeed application. Riding out of saddle on the uphill will become more pleasant. 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.
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.
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Chain options |
Only Shimano 12spd HG+ chains |
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Chainguide needed? |
No. But if you want one then chain guide should have 2 teeth more capacity than nominal oval ring size. |
The World's best oval (elliptical) narrow/wide 104bcd traction chainring. Non circular chainrings, Shimano oval chainring
Designed in UK. Manufactured in Poland (EU).