GRAVEL 1x oval 110 / 4 BCD DA9100 U8000 chainring


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$94.95
Size
Color
Availability

In Stock

Bolts Included

absoluteBLACK Premium 1X Gravel 110/4 bcd oval chainrings are designed for all Shimano 4 bolt cranks like Dura-Ace 9100, 9000, Ultegra 8000, 6800 and many others. Perfect choice for Gravel & Road 1X setup. Eagle 12spd compatible, narrow-wide chainring. Delivered with mounting bolts for your convenience. Chainring has 1.5mm offset towards frame for perfect chainline. Super stiff construction despite many cutouts.

Size (Mass +/-1g):

44T (80g), 46T (86g), 48T (90g), 50T (100g) Bolts included to every chainring (weight given for chainring only)

Color

Black, Ultegra Grey

Compatibility

Shimano Dura-Ace 9100, R9120, R9150 & R9170 Di2, Ultegra 8000, R8020, R8050 & 8070 Di2., 105 R7000, R7020, R7070, Dura-Ace 9000, Ultegra 6800, Shimano 105 5800, Tiagra 4700 ; 10 / 11 / 12spd compatible. In short ALL Shimano 4 bolt cranks

Material

cnc machined 7075 Txxx Aluminum. Long-lasting construction

Finish

type II anodizing

Ovality

10.5-11.4% ; Timing of 112-113° after TDC (top dead center) - Patent Pending

 

Advantages of our special Gravel 1X Oval chainrings:

*Finest design to provide excellent weight to strength ratio
*One of a kind special oval shape (Patent Pending)
*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
*Designed to handle mud and grass with ease
*Superb quality and great look.
*You will ride faster using ovals. If you keep using round ring then others will get quicker.
*Reduces stress on knees and helps to maintain your legs fresher for longer
*You will not "feel" the oval shape at all

What size should I choose

* 44T Oval chainring is best suited for someone who uses wide gravel tires, plenty of bike mounted camping gear or simply ride in mountain terrain

* 46T Oval chainring is best suited for fast hill riding with majority of gravel roads and some tarmac roads.

* 48T Oval chainring is best suited for someone who rides majority of tarmac roads and occasional off-road flat terrain

* 50T Oval chainring is best suited for road oriented riders with occasional flat fire roads

Why our oval chainrings work

Our premium Oval chainrings work because a rider does not produce power evenly through a pedal stroke; they maximize the part of the stroke where power is produced and minimize resistance where it isn't. Oval rings make the spin cycle a lot smoother and are easier on legs while climbing. Believe it (or not), but a round chainring doesn't transfer torque to your rear wheel as smoothly as an Oval one. You will actually feel your stroke to be more "round" with an Oval shape than with a round chainring.

Why it matters

Traction, Traction and Traction. With oval rings rear tire traction improves greatly on loose and slippery terrain. Smoother power delivery to your rear wheel means that you will be able to maintain better, constant cadence; get less stress on the joints (knees) and therefore be able to keep certain level of effort for longer. This results in higher average speed. Moreover, 11 studies made by various Universities in the World show that using oval chainrings human legs utilize more muscle groups (compared to round one), but each of them to lesser degree. Load from pedaling an oval chainring is spread over greater muscle mass which in effect gives you the feeling of fresher and more relaxed legs. It is world's finest oval chainring backed by tens of thousands of customers.

How to mount Gravel 1X 110/4 Oval chainring:

First you need to remove crank from the bike. Once removed, unscrew 4 bolts that hold two original rings together with T-30 torx key. Take off both original rings. Position Absoluteblack oval chainring in place where the big chainring was. Please note that small indicator on the chainring Must sit behind crank arm - same way as original chainring indicates its position. Use provided AB bolts to lock the chainring in place using T-30 torx key with force of about 5-7Nm. Mount your crank back to the bike. Done

 

Always use a new chain with a new chainring.

MSRP: from £69.50 ......

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Designed in UK. Manufactured in Poland (EU).

Word on BIOPACE - Please understand Absolute Black’s oval design IS NOT ‘Biopace’ technology. Shimano created their non-round Biopace chainrings with a completely different orientation of the biggest radius of the oval. Their ring orientation has since been widely accepted as being fundamentally wrong. Instead of positioning it in power zone - which is slightly below the level of the crank - they clocked it to the dead zone where human physiology generates least power. The result was that in power zone pedalling was too easy and in dead zone too hard, causing knee pain and lumpy pedalling cadence. Exactly opposite to how it should be. The opposite of how it is with an Absolute Black oval chainring fitted to your bike.

 

The World's finest oval (elliptical) road chainring. Non circular chainrings, Non-round chainrings. Asymmetrical chainrings.

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