AbsoluteBlack Premium 2x Oval 9/10/11 Speed Chainring (Black)
ROV9100/3X/4BK_34T
These Premium Shimano 110/4 bcd compatible oval chainrings are designed for Shimano cranks like Dura-Ace 9000, Ultegra 6800, 105- 5800 and others. These are finest oval chainrings on the market in terms of shifting, smoothness of pedaling and manufacturing quality. Not compatible with FSA cranks.
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Compatibility |
Shimano Dura-Ace 9000, Ultegra 6800, Shimano 105 5800, Tiagra 4700. Compatible with Di2 & Pioneer, SRM and other power meters |
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BOLTS |
For Outer chainring please order Long bolts OR Bolt Covers Changing Inner chainring to oval only? use original bolts |
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Material & Finish |
cnc machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing |
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Ovality |
Optimized to each size separately. 34T- 6.5% ; 36T- 11.4%, 38T- 11.4%, 50/52 - 10.3% ; Timing of 108 -109.5° after TDC (top dead center) - Ideal for road climbing. Patent Pending |
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Absolute Black always recommends using a new chain when fitting new chainrings.
Important:
- Ramps on big rings are specially configured for combinations: 50/34, 52/36, 52/38, 53/39TÂ
- If you wish to use other configuration it will also work, but shifting will be slower and may require more "adjustments" of front dérailleur to be acceptable. Also remember that front dérailleur can only accept max 16T difference between 2 chainrings - this is how Shimano and Sram designed them.
- Absolute Black always recommends using a new chain when fitting new chainrings
HOW TO MOUNT 110/4 OVAL CHAINRING:
First, you need to remove your crank from your bike. Once removed, unscrew the 4 bolts that hold two chainrings together with a T-30 torx key. Remove both original rings. Locate the new oval inner chainring with the triangular timing indicator positioned behind crank arm. The bolt holes on the small chainring are recessed â so the nut heads will sit flush with the surface of the chainring - these recesses should face you when mounting the bolts. Absolute Black outer chainrings have a specific recess to accommodate the rear edge of the crank arm - position the outer ring to line up that recess with the crank arm. If you are only switching the inner chainring to oval - use the original bolts that came with your crank. If you are switching to a pair of oval rings, you will need a set of regular âdoubleâ chainring bolts. Tighten all four bolts with force of about 5-7Nm. Mount your crank back to the bike. You may also need to adjust the front derailleur upwards by 2-3mm.

All Absolute Black products are designed in UK and manufactured in Poland (EU) to the highest standards of quality.
Cranks visible on the photos are not included to the purchased chainrings.
The World's finest oval (elliptical) road chainring. Non circular chainrings, Non-round chainrings. Asymmetrical chainrings.
Features
Advantages of absoluteBlack Road Oval Rings:
- One of a kind special oval shape that helps you climb easier and faster (Patent Pending)
- Over 15% stiffer than Rotor Qrings due to thicker, 5mm constructionÂ
- Bespoke Absolute Black 6 point ramp and recess shifting design shifts better than any other brand and model of oval chainringÂ
- Finest design that provides excellent strength to weight ratioÂ
- You will not "feel" the oval shape while pedaling Â
- Your pedalling action will feel smoother Â
- Helps reduce stress on knees and helping your legs remain fresher for longerÂ
- You will be able to maintain better cadence while climbingÂ
- Reduces possibility of leg crampsÂ
- You will reduce chainring/cog shifts by at least 15%
Additional Info
- Country of Origin: Poland
- Imported By: Sign In Retails , Plot-16 , Sector-33 , Gurgaon - 12201. Haryana , India.
- Net Quantity: 1N
- Customer Care Address: 291, 10 Main, 5 Block, Jayanagar, Bangalore - 560041. Ph: (080)47183232, Email: support@bumsonthesaddle.com
- Commodity: Chainrings
- Warranty
Exclusions
- Misuse or Negligence: The warranty does not cover damages resulting from misuse, abuse, or negligent handling of the products, including but not limited to improper installation, disassembly, or modification.
- Unauthorized Repairs or Alterations: Any attempt to repair or alterations by individuals or service providers not authorized by the manufacturer will void the warranty.
- Natural Wear and Tear: Normal wear and tear, including cosmetic deterioration, scratches, dents and fading over time, are excluded from the warranty coverage.
- Accidents or External Forces: Damages caused by accidents, improper packing, collisions, unauthorized tampering or exposure to extreme external forces (e.g., impacts, falls, or severe weather conditions) are not covered under this warranty.
- Incompatible Use: The warranty does not extend to damages resulting from using the products in ways inconsistent with their intended purpose or specifications.
- Failure to Follow Instructions: Damages arising from a failure to follow the product's operating instructions, guidelines, or recommended practices as outlined in the user manual are not covered.
- Battery Exclusions: For products with rechargeable Lithium-ion batteries, the warranty may exclude battery degradation over time or failures caused by non-compliance with proper charging procedures.
- Third-Party Accessories: Damages caused by the use of third-party accessories, components, or modifications not explicitly approved by the manufacturer are not covered.
- Failure to Provide Proof of Purchase: Warranty claims may require proof of purchase, and failure to provide such documentation may result in the exclusion of the product from warranty coverage.
- Exclusion for Water Damage: Any damage relating to damage caused by water because some products are water repellant but not Water Proof
- Non-specified conditions: Not includes damaged caused to products by improper accessories or improper fittings or for use in non specified conditions
- The warranty is available only to the Original purchaser/buyer of products
- Service must be performed by Brand or an authorized reseller.
- Insurance, handling and transportation charges to Brand Distributor shall be borne by Customer.
- For some products registration is required to extend the warranty. Failure to register voids extended warranty
- The decision to replace or repair a product is influenced by the brand and various factors