absoluteBLACK Oval Road Silver Series 110/4 Chainring for Shimano Dura-Ace 9000

The absoluteBLACK Oval Road Silver Series 110/4 chainring for Shimano Dura-Ace 9000 and other 4-arm cranks

This oval 2-speed chainring by absoluteBLACK from the Silver line was developed for the Shimano Dura-Ace 9000 and Ultegra 6800 road bike cranks, which have four asymmetrically arranged arms and a bolt circle diameter of 110 mm. It also fits 105 5800 and Tiagra 4700. Compared to premium chainrings, Silver Series chainrings have more material on the outside so you can clean them more easily. However, they are made of the same aluminium and are equally designed for super-fast and smooth gear changes. Thanks to the oval shape, you optimise your pedalling movement, reduce the strain on your knees and move forward faster.

Specifications:

Application:

Road

Mount:

110 mm bolt circle diameter, 4-arm asymmetrical

Teeth:

34 T, 36 T, 50 T, 52 T

Gearing:

2x10-speed, 2x11-speed

Type:

Oval 6.5% (34 T), 11.4% (36 T), 10.3% (50/52 T)

Technical Information:

Combinations:

34-50 T, 36-52 T

Material:

aluminium (7075)

Compatibility:

Crank:

Shimano Dura-Ace 9000 / Ultegra 6800 / 105 5800 / Tiagra 4700 (also Di2 groupsets), compatible with Pioneer, SRM and other power meters

Chain:

10-speed or 11-speed

Note from the manufacturer:

Use long bolts for the outer chainring. If you are only replacing the inner chainring, continue to use the original bolts.

Features:

• Silver Series version: fewer material cut-outs on the outside
• 30% heavier than premium chainrings, but very easy to clean
• oval shape for improved traction and performance uphill
• faster, looser riding with a natural pedalling motion with reduced strain on the knees
• ovality and timing (108 - 109.5°) matched to chainring size (TDC technology, Top Dead Center)
• 15% less shifting operations needed
• 5 mm thick and 15% stiffer than comparable chainrings
• 6 shift ramps, 12 downshifting points and design with cutouts for fast, smooth shifting
• durable construction, CNC-machined
• anodised
• designed in Great Britain, manufactured in Poland

Technology:

Oval Chainrings
Oval chainrings follow the natural physiology of humans. They maximise pedalling power the moment it is developed and minimise resistance when it is not. As a result, oval chainrings allow the rider to pedal more smoothly and stay loose on the climb.
In fact, your pedal stroke will feel " rounder" with an oval chainring than with a round chainring.
Compared to round chainrings, oval chainrings address more muscle groups - but each of them to a lesser degree. The total load of pedalling is therefore distributed over a larger muscle mass and the knees are less strained.
This has three advantages: 1. The legs remain fresher and more relaxed. 2. You can go uphill faster. 3. Spreading the load over more muscles reduces the susceptibility to cramps, even with great effort. Ultimately this will increase your riding pleasure. For MTB applications, the rear wheel traction is increased on loose and slippery surfaces, allowing you to make better progress on demanding terrain.

Manufacturer Numbers:

34 tooth:

ROV34/4WINTER

36 tooth:

ROV36/4WINTER

50 tooth:

ROV50/4WINTER

52 tooth:

ROV52/4WINTER

Contents:

• 1 x absoluteBLACK Road 110/4 BCD Shimano Dura-Ace 9000 Silver Series Oval chainring

Order Together:

• Chainring Bolt Covers for Dura-Ace 9000 or
• Chainring Bolt Covers for Ultegra 6800 or
• Chainring Bolt Set for 4-arm