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AbsoluteBlack Narrow Wide Oval Chainring Direct Mount E-Thirteen 12S Black
AbsoluteBlack Narrow Wide Oval Chainring Direct Mount E-Thirteen 12S Black
AbsoluteBlack Narrow Wide Oval Chainring Direct Mount E-Thirteen 12S Black

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AbsoluteBlack Narrow Wide Oval Chainring Direct Mount E-Thirteen 12S Black

absoluteBLACK

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Description

AbsoluteBlack Narrow Wide Oval Chainring Direct Mount designed for TRS E-thirteen cranks only.

This is the most premium chainring on the market. Oval chainrings do not produce more force, they increase pedaling efficiency through better transmission of force. This means that you don't necessarily get further by pedaling harder. But the less force you lose, the more energy you keep, allowing you to pedal harder when you need to and thus reducing your general fatigue. That's why you can ride faster, longer and further with oval chainrings.

Studies conducted by the University of Primorska, Slovenia, show significant differences between the use of AbsoluteBlack Oval chainrings and conventional round chainrings. It is proven that using an oval chainring can provide up to a 9% increase in pedal stroke efficiency, up to 7% less oxygen consumption, 15% less breathing and up to a 10% decrease in heart rate.

Details : 
  • Weight : 30T (58g), 32T (62g).
  • Color : Black
  • Crank compatibility : E*thirteen TRS, TRS+ and TRS Race Carbon only.
  • Not compatible with Shimano HG+ chain.
  • Material : Aluminum 7075 Txxx CNC machined. Long life construction. Type II anodized finish
  • Chainline : 49 mm
  • Ovality : Optimized to each size separately. Range: 10.2-14.4% and 110.5-116.3° after TDC (top dead center). Patent Pending
If you would like to check the frame clearance with the new oval chainring, the measurement of the largest oval dimension (from tip to tip of the tooth) is shown below: 30T : 134 mm; 32T : 143 mm.

ADVANTAGES OF ABSOLUTEBLACK DIRECT MOUNT CHAINRING :
  • The slimmest design to provide an excellent weight to strength ratio.
  • At least 12% lighter than the original round plate.
  • Unique special oval shape (patent pending)
  • Greatly improves traction and climbing ability
  • Unique narrow and wide tooth profiles (patent pending) to keep your chain in place for at least 12 months!
  • Special 3D machining of the teeth to dramatically reduce wear and noise.
  • Superb quality and great looks.
  • You will ride faster when using ovals. If you continue to use round rings, the others will become faster.
  • You won't feel the oval shape at all.
  • Reduces stress on the knees
  • We have mastered our oval trays to perfection, so you can get the most out of the oval/elliptical shape.
HOW TO ASSEMBLE THE E*THIRTEEN OVAL CHAINRING :
  • First you will need the E*Thirteen BB installation/removal tool. With this tool, you simply open the nut that holds the chainring to the crank. It is best to clamp this tool in a vice and turn the crank counter-clockwise (looking up).
  • Once the nut is removed, remove the old plate and re-grease the crank splines. Place the new oval plate with the convex side towards the crank, ensuring that the small recess (located next to the spline interface) is aligned with the center of the crank arm. This is crucial to achieve the correct position of the chainring.
  • Now replace the locking ring. As you will not be able to use a torque tool, please follow the steps below: Screw the locking ring in to the point where it starts to offer more resistance (as it is now touching the platter).
  • From this point on, turn the crank arm approximately 90 degrees. This will give you a suitable locking force of 30 Nm.

MORE INFORMATION

Features

Position Single
BCD Direct Mount E-Thirteen
Vitesse 12
9
10
11

Customer

Q&A

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