Oval Premium Chainring for SRAM APEX 1 ( 38T, 40T, 42T)
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absoluteBLACK Premium 1X Cyclocross 110/4bcd oval chainrings are designed specifically for APEX 1 cranks that feature asymmetric 110/4bcd bolt pattern. They are not compatible with other cranks. Narrow-wide chainring design. Use original Sram bolts. 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): |
38T, 40T, 42T |
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Color |
Black |
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Compatibility |
Fits ONLY Sram APEX 1 cranks that feature asymmetric 110/4bcd bolt pattern. Use original Sram mounting bolts. Not compatible with Sram Flat Top chain and Shimano HG+ chain |
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Material |
cnc machined 7075 Txxx Aluminum. Long-lasting construction. Mud optimized |
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Finish |
type II anodizing |
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Chainline |
Same as original |
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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 |
Advantages of our special Oval narrow wide chainrings:
*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 alternate wide and narrow 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
*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
*We mastered our oval chainrings to perfection, so you can get best possible advantage from the oval/elliptical shape.
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. 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 alternate wide and narrow teeth profile currently produced, guarantee minimum 12 months of excellent chain retention capabilities! We mean it. Always use a new chain with a new chainring.
Designed in UK. Manufactured in Poland (EU).
SRAM and Apex are trademarks of SRAM LLC and are used for informational purposes only.