ABSOLUTEBLACK Premium Oval Road 110/4BDC Chainring (Black, 50T)
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PREMIUM OVAL ROAD FOR DA9000 & ULTEGRA 6800 &
105 -5800
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.Use this snippet to build various types of components that feature a left- or right-aligned image alongside textual content. Duplicate the element to create a list that fits your needs.
SPECIFICATIONS
| Size (Mass +/-1g) | 34T (31g), 36T (37g), 38T (41g), 50T (120g), 52T (137g), (53T - go to 9100 model) |
| Color | Black, Racing Red, Grey (inner ring in black only) |
| Compatibility | Shimano Dura-Ace 9000, Ultegra 6800, Shimano 105 5800, Tiagra 4700. Compatible with Di2 & Pioneer, SRM and other power meters |
| Bolts | For Outer chainring please order Long bolts OR Bolt Covers /Changing Inner chainring to oval only? Use original bolts |
| Material & Finish | cnc machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing |
| 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 |
Absolute Black always recommends using a new chain when fitting new chainrings.
ADVANTAGES OF ABSOLUTEBLACK ROAD OVAL CHAINRINGS
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 construction
Bespoke Absolute Black 6 point ramp and recess shifting design shifts better than any other brand and model of oval chainring
Finest design that provides excellent strength to weight ratio
You will not "feel" the oval shape while pedaling
Your pedaling action will feel smoother
Helps reduce stress on knees and helping your legs remain fresher for longer
You will be able to maintain better cadence while climbing
Reduces possibility of leg cramps
You will reduce chainring/cog shifts by at least 15%
HOW TO ADJUST FRONT DERAILLEUR WITH ABSOLUTEBLACK ROAD OVAL CHAINRINGS
To proceed with the adjustment you will need 2mm and 5mm allen keys.
Trouble shooting:
If your derailleur over shifts the chain when moving from small ring to the big ring, it means your "gap" is greater than 2mm when chain is on big chainring (see video). You may need to reduce the gap. Your front derailleur may also be too high compared to what is advised on the video. Last thing to check is if your cage is parallel to the big chainring face.
If your front derailleur is hesitating to shift from small to the big ring then two issues may be present. The "gap" may be too small (It has to be 2mm - see video) or your cage is not parallel to the big chainring face. (SEE VIDEO)
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 – 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 ‘double’ 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. (SEE VIDEO)