Absolute Black CX Oval Chainring for 110 mm 4 holes Black 2023

Absolute Black Premium Cyclocross oval chainrings are designed for cranks like Shimano Dura-Ace 9000, Ultegra 6800, 105 5800 and Tiagra 4700 models. Ideal for 1X conversion of your road or CX crank. The chainring use narrow wide teeth design and now comes with integrated thread and mounting bolts for easier installation. All Absolute Black chainrings are up to 12 speed compatible

Advantages of our special CX 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 easy
• 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

Most CX riders choose 38T as most versatile option.

38T Oval ring will suit best someone who uses 37 or 38T chainring currently. While pedaling, you will feel similar effort to the one riding round 37T ring, but you will gain the speed similar to riding 40T chainring.

• 38T Oval ring will suit best someone who uses 37 or 38T chainring currently. While pedaling, you will feel similar effort to the one riding round 37T ring, but you will gain the speed similar to riding 40T chainring.
• 40TOval chainring has an ovality of 38/42T and is best for someone who uses currently 39 or 40T round ring.
• 42T Oval chainring has an ovality of 40/44T and is best for someone who uses currently 41 or 42T round ring.

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 Direct Mount Chainring

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

Features

• Color : Black
• 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
• Material : cnc machined 7075 Txxx Aluminum. Long-lasting construction
• Finish : type II anodizing
• Mounting : 110 mm 4 bolts
• Compatiblity : 10-11-12 speed
• Designed in UK. Manufactured in Poland (EU)
• Ovality : Optimized to each size separately. Range: 10.5-11.4% and Timing of 112-113° after TDC (top dead center) Patent Pending
• Comes with bolts

Weight : 61 gr in 38 T and 71 gr in 42T (weight without bolts)