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ABSOLUTE BLACK ROAD OVAL DOUBLE 130/5BCD 53T CHAINRING – BLACK

Product code903841
Availability Only 1 left in stock

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Our Premium Shimano 130/5(bolt pattern) oval chainrings are designed for pre-2014 cranks like Shimano Dura-Ace FC7900, FC7800, Ultegra FC6700, Shimano 105 -5700 and many more. These are the finest shift-able oval chainrings on the market. If your current chainrings are 53/39T this is a model you require.

Size (Mass +/-1g): 39T (34g), 53T (110g)
Color Black

Compatibility

Shimano Dura-Ace 7900,7800, Ultegra 6700, Shimano 105- 5700, Tiagra 4600, FSA, Rotor 3D & 3D+, S-works and many more. Compatible with Di2

Important If you currently use 53/39T round chainrings you have 130BCD cranks. You are looking at the correct product.
BOLTS For Outer chainring please order Long bolts

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. 39T- 6.5%, 53T – 10.3% ; Timing of 108.5° after TDC (top dead center). Patent Pending

Absolute Black always recommends using a new chain when fitting new chainrings.

ADVANTAGES OF ABSOLUTE BLACK 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 an 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 the possibility of leg cramps
*You will reduce chainring/cog shifts by at least 15%

HOW TO MOUNT 130/5 OVAL CHAINRING:

First, you need to remove your crank from your bike. Once removed, unscrew the 5 bolts that hold two chainrings together. 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 also triangular timing indicator – position the outer ring to line up that indicator 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’ (or Long) chainring bolts. Tighten all five 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.

HOW TO ADJUST FRONT DERAILLEUR WITH ABSLUTEBLACK ROAD OVAL CHAINRINGS

To proceed with the adjustment you will need 2mm and 5mm Allen keys.

Troubleshooting:

*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 the 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. The 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.

Bolt Circle Diameter - BCD

Chainring Shape

Discipline

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