absoluteblack oval guidering chainring for E*thirteen

$66.00
Size
Color
Qty
Availability

In stock


Our premium E*thirteen (E13) compatible Direct mount Oval chainrings are designed for E*thirteen TRS cranks only. It replaces stock round chainring.

Size (Mass +/-1g):

30T (58g), 32T (62g)

Color

Black

Compatibility

E*thirteen TRS, TRS+ and TRS Race Carbon cranks only. 9, 10, 11 and 12spd Eagle compatible.

Material

cnc machined 7075 Txxx Aluminum. Long-lasting construction

Finish

type II anodizing

Chainline

49mm

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


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):

30T: 134mm ; 32T: 143mm


Advantages of our special Direct mount chainrings:

*Finest design to provide excellent weight to strength ratio
* min 12% lighter over stock round chainring
*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
*We mastered our oval chainrings to perfection, so you can get best possible advantage from the oval/elliptical shape.


How to mount E*thirteen Oval chainring:

Full instruction with photos can be found here:

E*thirteen mounting instruction of a chainring

You will need E*Thirteen BB Install/Spider Removal Tool first. With this tool you need to simply open the lockring that holds the chainring on the crank. It's best to clamp that tool in a vice and Turn the crank counter-clockwise (looking from the top). Once the lockring is removed, take off old chainring and re-grease the splines on the crank. Place new oval chainring with convex side to the crank, but at the same time observing the small dimple (located next to spline interface) to be aligned with center of the crank arm. This is crucial to obtain correct chainring position. Now, place the lockring back. Since you will not be able to use torque tool, please do the following steps: Screw the lockring to the point where it starts to give you bigger resistance (as it touches the chainring now). From this point rotate the crank arm further by about 90 degrees. This will give you proper 30Nm locking force. Done



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. 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.


Designed in UK. Manufactured in Poland (EU).

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