Campagnolo Premium OVAL chainrings 4 bolt 11 & 12spd
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Premium Campagnolo compatible Oval chainrings designed for Super Record, Record and Chorus 4 bolt 145/112bcd cranks. They work perfectly with 11 & 12spd drivetrains thanks to our ingenious design. Incredibly stiff and light. Super fast shifting thanks to our patented shifting ramp design. Same brilliant oval design like in the rest of the collection.Use original bolts. It is the most Premium oval chainring on the market with scientifically proven performance gains.
" After 3 hours of riding I think I'll never change for round chainring. I'm not faster but i can feel much comfortable riding and linear effort. "
"Initially, reluctant. However, after month of riding I am 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."
" I'm absolutely impressed how well they shift, which was my biggest fear."
" I’ll never go back to round and will order one for each of my bikes. Super smooth, eased my knee pain, and has helped my climbs ten fold"
" I was quite skeptical until a friend of mine got AB oval rings. He was blown away with how good they were so I got some too and have to say I’m absolutely delighted."
"I particularly notice the difference climbing. Just seems to be easier and I feel like I’m turning circles rather than ‘mashing’."
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Size (Mass +/-1g): |
53T (90g), 39T - (42g) More sizes coming soon |
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Color |
Black |
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Compatibility |
Campagnolo Super record, Record, Chorus 4 bolt 145/112bcd for 11 and 12spd versions. |
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Material |
cnc machined 7075 Txxx Aluminum. Long-lasting construction |
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Finish |
anodized |
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Chainline |
Same as original. |
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Ovality |
Optimized to each size separately. 39T- 10.4%, 53T - 10-11.2% ; Timing of 108 -110.5° after TDC (top dead center) - Ideal for road climbing. Patent Pending |
Advantages of our special Campagnolo compatible Oval chainrings:
*Finest design to provide excellent weight to strength ratio
*One of a kind special oval shape (Patent Pending)
*Superb quality and great look.
*You will ride faster using ovals.
*You will not "feel" the oval shape at all
*Reduces stress on knees
*We mastered our oval chainrings to perfection, so you can get best possible advantage from the oval/elliptical shape.
How to mount Campagnolo oval chainrings:
Remove crank from the bike. First unscrew small chainring bolts with T-30 torx key. Campagnolo uses a hard glue so you may need to put more force to make the bolts turning. Then remove the big chainring with the same key. Mount our oval chainrings in the same fashion as originals were attached observing that small triangle indicator on the inner circumference on both rings should be lined up with the crank arm. Torque all 8 bolts to about 5-7Nm
Our longterm belief in oval and development of our design, has led absoluteBLACK to become the most commercially successful oval chainring product in the world. So keep in mind that not every oval chainring is equal to an absoluteBLACK.
Designed in UK. Manufactured in Poland (EU).